CN112662130B - Resin composition, resin material and preparation method thereof - Google Patents
Resin composition, resin material and preparation method thereof Download PDFInfo
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- CN112662130B CN112662130B CN202011523459.1A CN202011523459A CN112662130B CN 112662130 B CN112662130 B CN 112662130B CN 202011523459 A CN202011523459 A CN 202011523459A CN 112662130 B CN112662130 B CN 112662130B
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Abstract
The invention discloses a resin composition, a resin material and a preparation method thereof. The invention specifically discloses a resin composition which comprises the following components in parts by weight: 5-98 parts of dicyclopentadiene, 3-95 parts of epoxy resin, 0.5-65 parts of epoxy resin curing agent, 0.5-25 parts of curing accelerator and 0.01-15 parts of catalyst composition; the catalyst composition comprises a ruthenium carbene compound or a salt thereof shown in a formula I, and chlorinated paraffin; the chlorine content of the chlorinated paraffin is 5-65%, and the chlorine content is the percentage of the mass of chlorine atoms in the chlorinated paraffin. The resin composition of the invention can be stored for a long time, and a resin material prepared from the resin composition has good mechanical properties such as tensile strength, tensile modulus and elongation at break.
Description
Technical Field
The invention relates to a resin composition, a resin material and a preparation method thereof.
Background
The polydicyclopentadiene (PDCPD) is a homopolymer or copolymer with a cross-linked network structure formed by cutting and recombining olefin carbon-carbon double bonds under the action of an olefin double decomposition reaction catalyst, and has excellent weather resistance, wear resistance, surface finishing property, electrical insulation property, acid-base resistance and water resistance. PDCPD composite material products are manufactured into various parts by adopting Reaction Injection Molding (RIM), and are successfully applied to the fields of engineering machinery, light-weight automobiles, chlor-alkali industry and the like.
At present, the polydicyclopentadiene composite material prepared based on the tungsten-molybdenum catalytic system can be molded by adopting a RIM (RIM) process, the automation level is higher, but oxygen and moisture are required to be blocked in the processing process due to the defect of the catalytic system, so that the stability of the catalyst activity and the product quality is ensured, the requirement on reaction molding conditions is higher, the product applicability is poor, and the filler, the long fiber or the continuous fiber is not easy to be added to prepare the structure-enhanced composite material or the functional modified product, so that the popularization range of the polydicyclopentadiene material is limited.
In addition, the commercialized PDCPD composite material based on ruthenium carbene catalytic system generally has higher catalytic activity and stability, the synthetic process is simple, the functional group applicability is good, the reaction condition is not required to obstruct air and moisture, and the PDCPD composite material becomes a hot spot direction for the development of polydicyclopentadiene application technology. However, the existing ruthenium catalytic system cannot realize continuous automatic production, and the reason is as follows:
1. the storage period is short: the existing commercialized ruthenium-carbene catalytic system can be stored for a long time only at a low temperature and in a solid state, is quickly decomposed when being dissolved in a common solvent to prepare a solution, is difficult to store for a long time, can only be prepared for use, cannot be used for a continuous production line, and otherwise has the problems that the deactivation can not be performed, the curing reaction can not be performed, equipment is blocked severely, and the like.
2. Poor compatibility: the existing commercial ruthenium carbene catalytic system polydicyclopentadiene and other resin system compound products such as epoxy and the like have obvious phase separation, are hard and brittle, have low strength, have obvious defects and are difficult to popularize and use.
As is well known, epoxy resin is used as a classical thermosetting resin product, and a crosslinked network structure formed after curing of the epoxy resin gives the material excellent mechanical strength and high elastic modulus, but the epoxy resin has the defects of small fracture stress, poor shock resistance, narrow process adaptability, long production takt, difficult demoulding and the like, and is still an industry pain point until now.
Compared with thermosetting resins such as epoxy resin and other engineering plastics, the polydicyclopentadiene composite material product has the advantages of excellent impact resistance and corrosion resistance, good process applicability, high degree of automation and the like, but has lower mechanical strength, especially lower elastic modulus, and limits the popularization of the polydicyclopentadiene composite material product in the field of high-end application to a certain extent.
The invention discloses a multicolor and aging-resistant spraying-free polydicyclopentadiene composite material, a preparation method and application thereof, wherein the spraying-free polydicyclopentadiene composite material is prepared by adding a certain amount of copolymer, functional filler, environment-friendly color paste or high-mesh toner into a dicyclopentadiene system based on a ruthenium carbene catalyst, and the product has good appearance color and relatively balanced mechanical property and is mainly applied to the field of bathroom. However, after the ruthenium carbene solid catalyst is mixed with a cosolvent or other components, the mixture is molded by a single-component RIM (resin injection) process, the storage period of raw materials is short, the reaction activity is obviously reduced, the mixture needs to be prepared and used in actual production, and the continuous production requirement is difficult to meet.
Chinese patent CN1027509C provides a method for preparing thermosetting polymer, which comprises uniformly mixing dicyclopentadiene monomer with double decomposition catalyst and cocatalyst, adding a certain amount of auxiliary agent and filler, and making into polydicyclopentadiene composite material by double component reaction injection molding. However, the catalyst system is a metal carbene complex such as tungsten, molybdenum and tantalum, and the like, and the bi-component feed liquid needs to undergo ring-opening polymerization reaction under anhydrous and anaerobic conditions in the reaction process, so that the molding conditions are harsh, the process adaptability is poor, the addition of high-content filler or modified auxiliary agent is difficult to realize, and the application of the technology is limited.
The Chinese patent application CN103709375A discloses a high-performance epoxy resin composition containing dicyclopentadiene alicyclic structure, in the invention, two mixed epoxy resins are used as a matrix, and an anhydride curing agent, dicyclopentadiene monomer (DCPD), an accelerator, an antioxidant, a compound light stabilizer and the like are added to prepare the epoxy resin composition with good toughness, ageing resistance and weather resistance, so that the epoxy resin composition can be widely applied to the field of carbon fiber composite materials. DCPD used in the patent application is used as a chain terminator of an addition method, and the chain structure is increased by reducing the three-dimensional cross-linked structure in the epoxy resin condensate, so that the toughening effect is achieved.
Disclosure of Invention
The invention aims to provide a resin composition, a resin material and a preparation method thereof. The resin composition of the invention can be stored for a long time, and a resin material prepared from the resin composition has good mechanical properties such as tensile strength, tensile modulus and elongation at break.
The invention provides a resin composition, which comprises the following components in parts by weight: 5-98 parts of dicyclopentadiene, 3-95 parts of epoxy resin, 0.5-65 parts of epoxy resin curing agent, 0.5-25 parts of curing accelerator and 0.01-15 parts of catalyst composition;
the catalyst composition comprises a ruthenium carbene compound or a salt thereof shown in a formula I, and chlorinated paraffin; the chlorine content of the chlorinated paraffin is 5-65%, and the chlorine content is the percentage of the mass of chlorine atoms in the chlorinated paraffin;
wherein R is 1 And R is 2 Independently C 4 -C 18 Alkyl or by R 1-1 Substituted C 4 -C 18 An alkyl group;
R 1-1 independently C 6 -C 10 Aryl groups.
In one embodiment, some of the resin compositions are defined as follows, and the other embodiments (hereinafter, abbreviated as one embodiment) are defined as follows, and the chlorinated paraffin preferably has a chlorine content of 5% to 60%, for example, 5%, 42%, 52% or 60%, and the chlorine content is a percentage of the mass of chlorine atoms to the mass of the chlorinated paraffin.
In one embodiment, the ruthenium carbene compound or salt thereof of formula I may be present in the chlorinated paraffin in an amount ranging from 0.08mol/L to 0.7mol/L, preferably from 0.1mol/L to 0.6mol/L, for example 0.1mol/L, 0.2mol/L, 0.25mol/L, 0.3mol/L, 0.35mol/L, 0.55mol/L or 0.6mol/L.
In one embodiment, the said C 4 -C 18 Alkyl or by R 1-1 Substituted C 4 -C 18 C in alkyl 4 -C 18 Alkyl groups can independently be C 4 -C 10 Alkyl, preferably C 4 -C 6 Alkyl radicals, e.g. C 4 Alkyl, C 5 Alkyl or C 6 Alkyl, for example, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl or n-hexyl, more preferably n-butyl or n-hexyl.
In one embodiment, the quilt R 1-1 Substituted C 4 -C 18 In the alkyl group, R 1-1 The number of (2) is 1, 2 or 3, and when plural, the same or different.
In one embodiment, the said C 6 -C 10 Aryl may be phenyl or naphthyl.
In one embodiment, R 1 And R is 2 Can be independently n-butyl or n-hexyl.
In one embodiment, R 1 And R is 2 Can be independently C 4 -C 18 An alkyl group.
In one embodiment, R 1 And R is 2 May be the same or different.
In one embodiment, the ruthenium carbene compound shown in the formula I can have any structure,
in one embodiment, the catalyst composition may consist of a ruthenium carbene compound or salt thereof, as shown in formula I, and chlorinated paraffin; the ruthenium carbene compound and chlorinated paraffin shown in the formula I are described in any scheme.
In one embodiment, the catalyst composition may be any combination of the following:
combination A1:
and chlorinated paraffin, wherein the chlorinated paraffin has chlorine content of 5%, 42%, 52% or 60%;
combination A2:
and chlorinated paraffin, wherein the chlorinated paraffin has chlorine content of 5%, 42%, 52% or 60%;
combination A3:
and chlorinated paraffin, wherein the chlorine content of the chlorinated paraffin is 52%;
combination A4:
and chlorinated paraffin, wherein the chlorine content of the chlorinated paraffin is 42%; />
Combination A5:
and chlorinated paraffin, wherein the chlorine content of the chlorinated paraffin is 5%;
combination A6:
and chlorinated paraffin, wherein the chlorine content of the chlorinated paraffin is 60%;
combination A7:
and chlorinated paraffin, wherein the chlorine content of the chlorinated paraffin is 52%.
In one embodiment, the catalyst composition may be any combination of the following:
combination B1:
and chlorinated paraffin with chlorine content of 5%>
The concentration of the substances in the chlorinated paraffin was 0.1mol/L;
combination B2:
and chlorinated paraffin with chlorine content of 42%>
The mass concentration of the substances in the chlorinated paraffin is 0.3mol/L;
combination B3:
and chlorinated paraffin with chlorine content of 52%>
The mass concentration of the substances in the chlorinated paraffin is 0.35mol/L; / >
Combination B4:
and chlorinated paraffin with chlorine content of 60%>
The concentration of the substances in the chlorinated paraffin was 0.6mol/L;
combination B5:
and chlorinated paraffin with chlorine content of 5%>
The concentration of the substances in the chlorinated paraffin was 0.1mol/L;
combination B6:
and chlorinated paraffin having a chlorine content of 42%,/>
the mass concentration of the substances in the chlorinated paraffin is 0.25mol/L;
combination B7:
and chlorinated paraffin with chlorine content of 52%>
The mass concentration of the substances in the chlorinated paraffin is 0.3mol/L;
combination B8:
and chlorinated paraffin with chlorine content of 60%>
The concentration of the substances in the chlorinated paraffin was 0.6mol/L;
combination B9:
and chlorinated paraffin with chlorine content of 52%>
The mass concentration of the substances in the chlorinated paraffin is 0.3mol/L; />
Combination B10:
and chlorinated paraffin with chlorine content of 42%>
The mass concentration of the substances in the chlorinated paraffin is 0.35mol/L;
combination B11:
and a chlorinated stone having a chlorine content of 5%Wax (F)>
The mass concentration of the substances in the chlorinated paraffin is 0.55mol/L;
combination B12:
and chlorinated paraffin with chlorine content of 60%>
The mass concentration of the substances in the chlorinated paraffin is 0.2mol/L;
combination B13:
and chlorinated paraffin having a chlorine content of 52%,
the concentration of the substances in chlorinated paraffin was 0.35mol/L.
In one embodiment, the dicyclopentadiene may have a purity of greater than or equal to 90%, preferably greater than or equal to 98%.
In one embodiment, the dicyclopentadiene is preferably used in an amount of 10 to 95 parts by weight, for example, 10 parts, 55 parts, 80 parts or 95 parts.
In one embodiment, the epoxy resin is preferably used in an amount of 5 to 90 parts by weight, for example, 5 parts, 20 parts, 45 parts or 90 parts.
In one embodiment, the epoxy resin curing agent is preferably used in an amount of 1 to 60 parts by weight, for example, 1.14 parts, 3 parts, 18.76 parts, or 57.93 parts.
In one embodiment, the curing accelerator is preferably used in an amount of 1 to 10 parts by weight, for example, 1.56 parts, 6.40 parts, 9.70 parts, or 3 parts.
In one embodiment, the catalyst composition is preferably used in an amount of 0.03 to 11 parts by weight, for example 0.03 parts, 0.57 parts, 0.67 parts or 10.94 parts.
In one embodiment, the sum of the parts by volume of the cyclopentadiene and the epoxy resin may be 100 parts.
In one embodiment, the ratio of the parts by volume of cyclopentadiene to the epoxy resin may be 0.1:1 to 20:1, such as 1:9, 4:1, 11:9, or 19:1.
In one embodiment, the epoxy resin may be one or more of bisphenol a type epoxy resin, bisphenol F type epoxy resin, glycidyl ether type epoxy resin, glycidyl ester type epoxy resin and novolac type epoxy resin, preferably bisphenol a type epoxy resin.
In one embodiment, the epoxy resin preferably has an epoxy value of 0.48 to 0.54.
In one embodiment, the epoxy resin curing agent may be an epoxy resin curing agent in the art, and may be one or more of methyltetrahydrophthalic anhydride, methylhexahydrophthalic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, modified methyltetrahydrophthalic anhydride, modified methylhexahydrophthalic anhydride, methyl-5-norbornene-2, 3-dicarboxylic anhydride (MNA), and dodecylsuccinic anhydride, preferably one or more of methyltetrahydrophthalic anhydride, methylhexahydrophthalic anhydride, and methyl-5-norbornene-2, 3-dicarboxylic anhydride.
In one embodiment, the curing accelerator may be a curing accelerator in the art, and may be one or more of 2,4, 6-tris (dimethylaminomethyl) phenol (DMP-30), dimethylaminomethyl phenol (DMPZ-10), 2-methylimidazole, 2-ethylimidazole and 2-ethyl-4-methylimidazole, preferably one or more of 2-methylimidazole, 2-ethylimidazole and 2,4, 6-tris (dimethylaminomethyl) phenol.
In one embodiment, the resin composition further comprises one or more of a comonomer, a functional filler, and an auxiliary agent.
The comonomer may be a comonomer conventional in the art, and may be one or more of norbornene, methyl methacrylate, ethyl methacrylate, butyl methacrylate, ethylene, propylene, isoprene, styrene, butadiene, maleic anhydride, cyclopentadiene, methyl-5-norbornene-2, 3-dicarboxylic anhydride, and t-butyl 5-norbornene-2-carboxylate, preferably one or more of ethylene, ethyl methacrylate, and t-butyl 5-norbornene-2-carboxylate.
The comonomer may be used in an amount of 0.5 to 13 parts by weight, preferably 1 to 10 parts by weight, for example 1.37 parts, 5 parts or 10 parts by weight.
The functional filler can be conventional functional filler in the field, and can also be one or more of carbon black, graphite powder, mica powder, montmorillonite, titanium pigment, silicon dioxide, glass fiber, basalt fiber, carbon fiber, polyethylene fiber and aramid fiber, preferably one or more of glass fiber, carbon black and carbon fiber.
The functional filler may be used in an amount of 1 to 13 parts by weight, preferably 2 to 10 parts by weight, for example 2.50 parts, 5 parts or 9.66 parts by weight.
The auxiliary agent can be one or more of a polymerization regulator, an anti-aging agent, a coupling agent, a toner, a cosolvent, a heat stabilizer, a flame retardant and a release agent, and is preferably one or more of a polymerization regulator, an anti-aging agent, a coupling agent, a toner and a cosolvent.
The polymerization regulator can be a polymerization regulator conventional in the field, and can be one or more of triphenylphosphine, triethyl phosphite, tributyl phosphite, ethylene glycol dimethyl ether, diphenyl ketone and isopropyl ether, preferably triethyl phosphite. The polymerization regulators may be used in amounts conventional in the art, in parts by weight, and may also be used in amounts of 0.5 to 3 parts, for example 1 part.
The anti-aging agent may be an anti-aging agent conventional in the art, and may be one or more of 2, 6-di-t-butyl-4-methylphenol, aniline, 2-methylaniline, BASF1010, BASF1076, BASF168, tinuvin 571, tinuvin 765, tinuvin B75, tinuvin B88, 2, 4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, UV-531 and UV-770, preferably one or more of 2, 6-di-t-butyl-4-methylphenol, 2-methylaniline, tinuvin B75 and 2-hydroxy-4-methoxybenzophenone. The anti-aging agent may be used in an amount conventional in the art, and may be used in an amount of 1 to 5 parts by weight, for example, 2 parts by weight.
The coupling agent may be a coupling agent conventional in the art, and may be a silane coupling agent, for example, silane coupling agent a172. The coupling agent may be used in an amount conventional in the art, and may be used in an amount of 0.3 to 1 part, for example, 0.64 part, by weight.
The toner may be a toner conventional in the art. The toner may be used in an amount conventional in the art, and may be used in an amount of 0.1 to 0.5 parts by weight, for example, 0.34 parts by weight.
The co-solvent may be a co-solvent conventional in the art, such as acetone. The amount of the cosolvent may be an amount conventional in the art, and may be 1 to 2 parts by weight, for example, 1.56 parts by weight.
The heat stabilizer may be a conventional heat stabilizer in the art. The heat stabilizer may be used in an amount conventional in the art, in parts by weight.
The flame retardant may be a conventional flame retardant in the art. The flame retardant may be used in amounts conventional in the art, in parts by weight.
The release agent may be a release agent conventional in the art. The release agent may be used in amounts conventional in the art, in parts by weight.
In one embodiment, the composition may be any combination of the following:
combination C1: dicyclopentadiene, epoxy resin curing agent, curing accelerator and catalyst composition; .
Combination C2: dicyclopentadiene, epoxy resin, an epoxy resin curing agent, a curing accelerator, a catalyst composition, a comonomer, a functional filler and toner;
Combination C3: dicyclopentadiene, epoxy resin, an epoxy resin curing agent, a curing accelerator, a catalyst composition, a comonomer, a functional filler, an anti-aging agent and a coupling agent;
combination C4: dicyclopentadiene, epoxy resin, an epoxy resin curing agent, a curing accelerator, a catalyst composition, a comonomer, a functional filler, a polymerization regulator and a cosolvent;
the dicyclopentadiene, the epoxy resin curing agent, the curing accelerator, the catalyst composition, the comonomer, the functional filler, the polymerization regulator, the anti-aging agent, the coupling agent, the toner and the cosolvent are defined in any scheme.
In one embodiment, the composition may be any combination of the following:
combination D1: 10-95 parts of dicyclopentadiene, 5-90 parts of epoxy resin, 1-60 parts of epoxy resin curing agent, 1-10 parts of curing accelerator and 0.03-11 parts of catalyst composition;
combination D2: 10-95 parts of dicyclopentadiene, 5-90 parts of epoxy resin, 1-60 parts of epoxy resin curing agent, 1-10 parts of curing accelerator, 0.03-11 parts of catalyst composition, 1-10 parts of comonomer, 2-10 parts of functional filler and 0.1-0.5 part of toner;
combination D3: 10-95 parts of dicyclopentadiene, 5-90 parts of epoxy resin, 1-60 parts of epoxy resin curing agent, 1-10 parts of curing accelerator, 0.03-11 parts of catalyst composition, 1-10 parts of comonomer, 2-10 parts of functional filler, 1-5 parts of anti-aging agent and 0.3-1 part of coupling agent;
Combination D4: 10-95 parts of dicyclopentadiene, 5-90 parts of epoxy resin, 1-60 parts of epoxy resin curing agent, 1-10 parts of curing accelerator, 0.03-11 parts of catalyst composition, 1-10 parts of comonomer, 2-10 parts of functional filler, 0.5-3 parts of polymerization regulator and 1-2 parts of cosolvent;
combination D5: 10-95 parts of dicyclopentadiene, 5-90 parts of epoxy resin, 1-60 parts of epoxy resin curing agent, 1-10 parts of curing accelerator and 0.03-11 parts of catalyst composition; the epoxy resin is bisphenol A type epoxy resin; the epoxy resin curing agent is one or more of methyl tetrahydrophthalic anhydride, methyl hexahydrophthalic anhydride and methyl-5-norbornene-2, 3-dicarboxylic anhydride; the curing accelerator is one or more of 2-methylimidazole, 2-ethylimidazole and 2,4, 6-tris (dimethylaminomethyl) phenol; the catalyst composition is
And chlorinated paraffin having chlorine content of 5%;
combination D6: 10-95 parts of dicyclopentadiene, 5-90 parts of epoxy resin, 1-60 parts of epoxy resin curing agent, 1-10 parts of curing accelerator, 0.03-11 parts of catalyst composition, 1-10 parts of comonomer, 2-10 parts of functional filler and 0.1-0.5 part of toner; the epoxy resin is bisphenol A type epoxy resin; the epoxy resin curing agent is one or more of methyl tetrahydrophthalic anhydride, methyl hexahydrophthalic anhydride and methyl-5-norbornene-2, 3-dicarboxylic anhydride; the curing accelerator is one or more of 2-methylimidazole, 2-ethylimidazole and 2,4, 6-tris (dimethylaminomethyl) phenol; the catalyst composition is 
And chlorinated paraffin having a chlorine content of 42%; the comonomer is one or more of ethylene, ethyl methacrylate and 5-norbornene-2-carboxylic acid tert-butyl ester; the functional filler is one or more of glass fiber, carbon black and carbon fiber;
combination D7: 10-95 parts of dicyclopentadiene, 5-90 parts of epoxy resin, 1-60 parts of epoxy resin curing agent, 1-10 parts of curing accelerator, 0.03-11 parts of catalyst composition, 1-10 parts of comonomer, 2-10 parts of functional filler, 1-5 parts of anti-aging agent and 0.3-1 part of coupling agent; the epoxy resin is bisphenol A type epoxy resin; the epoxy resin curing agent is one or more of methyl tetrahydrophthalic anhydride, methyl hexahydrophthalic anhydride and methyl-5-norbornene-2, 3-dicarboxylic anhydride; the curing accelerator is one or more of 2-methylimidazole, 2-ethylimidazole and 2,4, 6-tris (dimethylaminomethyl) phenol; the catalyst composition is
And chlorinated paraffin having a chlorine content of 60%; the comonomer is one or more of ethylene, ethyl methacrylate and 5-norbornene-2-carboxylic acid tert-butyl ester; the functional filler is one of glass fiber, carbon black and carbon fiber Or a plurality of; the anti-aging agent is one or more of 2, 6-di-tert-butyl-4-methylphenol, 2-methylaniline, tinuvin B75 and 2-hydroxy-4-methoxybenzophenone; the coupling agent is a silane coupling agent;
combination D8: 10-95 parts of dicyclopentadiene, 5-90 parts of epoxy resin, 1-60 parts of epoxy resin curing agent, 1-10 parts of curing accelerator, 0.03-11 parts of catalyst composition, 1-10 parts of comonomer, 2-10 parts of functional filler, 0.5-3 parts of polymerization regulator and 1-2 parts of cosolvent; the epoxy resin is bisphenol A type epoxy resin; the epoxy resin curing agent is one or more of methyl tetrahydrophthalic anhydride, methyl hexahydrophthalic anhydride and methyl-5-norbornene-2, 3-dicarboxylic anhydride; the curing accelerator is one or more of 2-methylimidazole, 2-ethylimidazole and 2,4, 6-tris (dimethylaminomethyl) phenol; the catalyst composition is
And chlorinated paraffin having chlorine content of 5%; the comonomer is one or more of ethylene, ethyl methacrylate and 5-norbornene-2-carboxylic acid tert-butyl ester; the functional filler is one or more of glass fiber, carbon black and carbon fiber; the polymerization regulator is triethyl phosphite; the cosolvent is acetone;
Combination D9: 80 parts of dicyclopentadiene, 20 parts of bisphenol A type epoxy resin, 13 parts of methyl-5-norbornene-2, 3-dicarboxylic anhydride, 3 parts of 2,4, 6-tris (dimethylaminomethyl) phenol and 0.67 part of a catalyst composition; the catalyst composition is
And chlorinated paraffin with chlorine content of 5%>
The concentration of the substances in the chlorinated paraffin was 0.1mol/L;
combination D10: 95 parts of dicyclopentadiene, 5 parts of bisphenol A epoxy resin, 1.14 parts of methyl hexahydrophthalic anhydride, 9.70 parts of 2-ethylimidazole and catalysis0.57 part of agent composition, 1.37 parts of 5-norbornene-2-carboxylic acid tert-butyl ester, 5 parts of carbon fiber and 0.34 part of toner; the catalyst composition is
And chlorinated paraffin having a chlorine content of 42%,
the mass concentration of the substances in the chlorinated paraffin is 0.25mol/L;
combination D11: 55 parts of dicyclopentadiene, 45 parts of bisphenol A epoxy resin, 57.93 parts of methyltetrahydrophthalic anhydride, 6.40 parts of 2-methylimidazole, 0.03 part of catalyst composition, 10 parts of ethylene, 9.66 parts of glass fiber, 2 parts of 2-methylaniline and 172.64 parts of silane coupling agent A; the catalyst composition is
And chlorinated paraffin with chlorine content of 60%>
The concentration of the substances in the chlorinated paraffin was 0.6mol/L;
Combination D12: 10 parts of dicyclopentadiene, 90 parts of bisphenol A type epoxy resin, 18.76 parts of methyl-5-norbornene-2, 3-dicarboxylic anhydride, 1.56 parts of 2,4, 6-tris (dimethylaminomethyl) phenol, 10.94 parts of a catalyst composition, 5 parts of ethyl methacrylate, 2.50 parts of carbon black, 1 part of triethyl phosphite and 1.56 parts of acetone; the catalyst composition is
And chlorinated paraffin with chlorine content of 5%>
The concentration of the substances in the chlorinated paraffin was 0.1mol/L.
The invention provides a resin material, which is prepared by taking the resin composition in any scheme as a raw material.
In one embodiment, the epoxy resin and dicyclopentadiene are preferably crosslinked and polymerized to form an interpenetrating network structure.
The invention provides a preparation method of the resin material, which comprises the following steps: the resin composition of any scheme is taken as a raw material, dicyclopentadiene, epoxy resin, an epoxy resin curing agent, a curing accelerator and a catalyst composition are uniformly mixed, one or more of comonomer, functional filler and auxiliary agent are optionally added, and the resin material is obtained by curing and molding.
In one embodiment, the preparation method may employ a RIM process.
In one embodiment, the conditions and operations of the RIM process may be those conventional in the art, and may further comprise the steps of:
(1) Mixing dicyclopentadiene and epoxy resin to obtain solution A;
(2) Mixing the catalyst composition, the epoxy resin curing agent and the curing accelerator to obtain a solution B;
(3) Optionally adding one or more of a comonomer, a functional filler and an auxiliary agent to the liquid a or the liquid B;
(4) Leading the solution A and the solution B into a storage system for standby;
(5) The solution A and the solution B are subjected to reaction injection molding in RIM equipment;
(6) Solidifying to obtain the resin material.
In one embodiment, in step (4), the storage system may be a storage tank of a RIM apparatus.
In one embodiment, in step (4), the temperature of the storage system may be-10 ℃ to 40 ℃, preferably-5 ℃ to 25 ℃.
In one embodiment, in the step (5), the mass ratio of the liquid a to the liquid B may be 1:1 to 20:1, more preferably 1:1 to 15:1, for example 3:1, 3:2, 8:1 or 15:1, more preferably 1:1 to 10:1.
In a certain scheme, in the step (5), the liquid A and the liquid B can be mixed and injected into a mold on line to finish reaction injection molding.
In one embodiment, in the step (5), the injection speed of the reaction injection molding may be 200mL/min-100L/min, preferably 500mL/min-30L/min, such as 500mL/min, 2L/min, 5L/min, 30L/min.
In one embodiment, in step (5), the injection molding pressure of the reaction injection molding may be 0.1 to 20bar, preferably 6 to 25bar, for example 6bar, 10bar, 15bar or 25bar.
In one embodiment, in step (6), the temperature during curing may be from 70 to 180 ℃, preferably from 70 to 100 ℃, for example 80 ℃.
In one embodiment, in step (6), the curing time may be 1 to 120 minutes, for example, 2 hours.
The invention also provides a resin material prepared by the preparation method.
In the present invention, "min" means minutes, "h" means hours, "°c" means degrees celsius unless otherwise specified.
Unless otherwise indicated, the terms used in the present invention have the following meanings:
in the present invention, the ruthenium carbene compound or salt thereof as shown in the formula I may have one or more chiral carbon atoms, and thus may be isolated as an optically pure isomer, for example, a pure enantiomer, or a racemate, or a mixed isomer. Pure single isomers may be obtained by separation methods in the art, such as chiral crystallization to form salts, or chiral preparative column separation.
In the present invention, the ruthenium carbene compound or salt thereof represented by the formula I, if present, may exist as a single stereoisomer or as a mixture thereof (e.g., racemate). The term "stereoisomer" refers to a cis, trans or optical isomer. These stereoisomers may be isolated, purified and enriched by asymmetric synthesis methods or chiral separation methods (including but not limited to thin layer chromatography, rotary chromatography, column chromatography, gas chromatography, high pressure liquid chromatography, etc.), and may be obtained by chiral resolution by bonding (chemical bonding, etc.) or salifying (physical bonding, etc.) other chiral compounds. The term "single stereoisomer" means that one stereoisomer of the compound of the present invention is present in an amount of not less than 95% by mass relative to all stereoisomers of the compound.
The term "salt" includes salts prepared by the reaction of a compound of the invention with an acid, for example: hydrochloride, hydrobromide, sulfate, and the like.
The term "alkyl" refers to a straight or branched chain alkyl group having the indicated number of carbon atoms. For example C 1 -C 6 Alkyl is a straight or branched alkyl group having 1 to 6 carbon atoms, examples of which include methyl, ethyl, n-propyl, isopropyl, n-butyl, t-butyl, isobutyl, sec-butyl, n-pentyl, n-hexyl and the like.
The term "aryl" refers to a hydrocarbon group having aromaticity, e.g., C 6 -C 10 Aryl, examples of which include phenyl or naphthyl.
In the present invention, the open expression "comprising" is convertible into the closed expression "consisting of … …".
On the basis of conforming to the common knowledge in the field, the above preferred conditions can be arbitrarily combined to obtain the preferred examples of the invention.
The reagents and materials used in the present invention are commercially available.
The invention has the positive progress effects that:
(1) The catalyst composition in the resin composition is convenient to use and does not need to be prepared and used at present.
(2) The catalyst composition in the resin composition has long storage period and can maintain the original catalytic activity after being stored for 6 months.
(3) The resin composition of the invention can be stored for a long time, and the mechanical properties of the resin material prepared after 6 months of storage are not obviously changed.
(4) The resin material prepared by the invention realizes the compounding of an epoxy system and a polydicyclopentadiene resin system, has better compatibility, and has high mechanical strength, high modulus and good shock resistance.
(5) The catalyst composition is used for preparing resin materials, and the catalyst composition is in a liquid state, so that the production process can be suitable for more processes, such as a two-component RIM process and the like. Compared with the single-component RIM process, in the double-component RIM process, the material liquid can be stored separately, the material storage period is prolonged, and the method is suitable for industrial continuous production.
Detailed Description
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention. The experimental methods, in which specific conditions are not noted in the following examples, were selected according to conventional methods and conditions, or according to the commercial specifications.
The instruments and raw materials involved in the examples are described below:
the nuclear magnetic resonance hydrogen spectrum and the carbon spectrum were measured by Bruker AV 400 (400 MHz) instrument. Chemical shifts are expressed in ppm with TMS as an internal standard. Chemical shifts, split (s: singlet, d: doublet, t: triplet, q: quartet, m: multiplet, br: broad) and coupling constants (J, units: hz) were recorded
The solvents used were obtained from Selen Biochemical technology Co., ltd. CDC1 for testing 3 Is available from Shanghai Bai Ka limited. (PCy) 3 ) 2 C1 2 Ru=chph (1) was purchased from shimmy technology limited.
Tetrahydrofuran is obtained by distilling after sodium reflux to a benzophenone solution under the protection of nitrogen to turn blue; the methylene dichloride is obtained by calcium hydride treatment distillation under the protection of nitrogen.
Example 1: synthesis of 1, 3-bis (2, 4, 6-trimethylphenyl) -2- (4, 5-dibutylimidazolidinylidene) (dichlorobenzylidene) (tricyclohexylphosphine) ruthenium (I-1) as a butyl substituent-containing catalyst
The synthesis of the butyl substituent-containing catalyst I-1 comprises the following steps:
1) Preparation of N, N' -bis (2, 4, 6-trimethyl) phenylenediimine (9)
To the funnel with dropping liquidTo a 500mL three-necked flask of the above-mentioned, 3.73mL of an aqueous glyoxal (8) solution (40%) and 80mL of methanol were successively added, and the mixture was stirred to dissolve glyoxal. To the dropping funnel were added 9.12mL of m-trimethylamine (7), 10mL of methanol, and slowly dropped into the flask. The reaction mixture was stirred for 12 hours at a temperature of about 22 ℃. In this process, a bright yellow precipitate slowly separated from the reaction solution. After the reaction, the reaction solution was filtered to obtain a yellow solid, the solid was washed three times with water and once with methanol, and dried in vacuo to obtain yellow crystalline product 9. Weigh 6.5g and yield 70%. Analytical data.calculated (found) for C 20 H 24 N 2 ；C,82.15(82.12)；H,8.27(8.20). 1 H-NMR(400MHz,CDCl 3 ):δ(ppm):2.15(s,12H,CH 3 ),2.30(s,6H,CH 3 ),6.96(s,4H,CHar),8.10(s,2H,CHar). 13 C-NMR(100MHz,CDCl 3 )δ(ppm):18.0,20.9,126.4,128.9,134.0,147.4,162.9。
2) Preparation of N, N' -bis (2, 4, 6-trimethylphenyl) decane-5, 6-diamine (10)
To a dry 100mL ampoule under nitrogen, 2.92g (10.0 mmol) of N, N' -bis (2, 4, 6-trimethyl) phenylenediimine (9) (Mw: 292.46 g/mol) was added and dissolved by stirring with 50mL of tetrahydrofuran. Then, the flask was placed in an ethanol cold bath at-78 ℃ and stirred for cooling. After the reaction solution was sufficiently cooled, 13.75mL (22.0 mmol) of a solution of butyllithium (1.6M in hexane) was slowly dropped by a syringe. After the addition was completed, the reaction mixture was slowly cooled to room temperature under stirring, and stirring was continued for 1.5 hours. The process solution gradually changed from cloudy to yellow transparent. After the reaction was completed, the reaction solution was cooled to 0℃and 20mL of a saturated ammonium chloride solution was added to the reaction solution, the solution was layered, after the organic phase was separated, the aqueous phase was further extracted three times with 20mL of ethyl acetate, the organic phases were combined, dried over anhydrous sodium sulfate, and the solvent was distilled off to obtain a yellow solid, which was identified as NN' -bis (2, 4, 6-trimethylphenyl) decane-5, 6-diamine (10) (CF: C 28 H 44 N 2 The method comprises the steps of carrying out a first treatment on the surface of the Mw:408.67 g/mol); heavy 3.91g (9.57 mmol), yield: 97%. Analytical data.calculated (found) for C 28 H 44 N 2 ；C,82.29(82.31)；H,10.85(11.01)；N,6.85(6.87). 1 H-NMR(600MHz,CDCl 3 ):δ(ppm):0.89(t,6H,3J(H,H)＝7.0Hz,CH 3 ),1.31(m,8H,CH 2 ),1.50(m,2H,CH 2 ),1.74(m,2H,CH 2 ),2.04(s,12H,CH 3 ),2.22(s,6H,CH 3 ),3.02(br,2H,NH),3.12(m,2H,CH),6.73(s,4H,CHar). 13 C-NMR(150MHz,CDCl 3 )δ(ppm):14.3,18.9,20.6,23.2,29.7,31.2,58.1,128.9,129.7,130.3,142.0。
3) Preparation of 4, 5-dibutyl-1, 3-bis (trimethylphenyl) -4, 5-dihydro-1H-imidazolium tetrafluoroborate (II-1)
4.32g (10.6 mmol) of N, N' -bis (2, 4, 6-trimethylphenyl) decane-5, 6-diamine (10) (Mw: 408.67 g/mol), 1.125g (10.73 mmol) of NH 4 BF 4 (Mw: 104.8431 g/mol) and 19mL CH (OEt) 3 Is heated to 125℃and stirred for 15h. During this time the solution gradually turned to a reddish brown color. After cooling to room temperature, the mixture was washed with petroleum ether (50X 3 mL) to separate a lower oil, and 100mL of CH was used 2 Cl 2 Dissolving, filtering to remove insoluble substances to obtain clear solution, removing solvent by rotary evaporation, and vacuum drying to obtain brown viscous oily substance, which is 4, 5-dibutyl-1, 3-di (trimethylphenyl) -4, 5-dihydroimidazolium tetrafluoroborate (II-1) (CF: C) 29 H 43 BF 4 N 2 The method comprises the steps of carrying out a first treatment on the surface of the Mw:506.48 g/mol). After one celite column chromatography using methylene chloride as a solvent, the solvent was removed by rotary evaporation, 4.53g (8.94 mmol) of a crystalline substance was obtained by cooling for a long period of time, and the yield was 84%. Analytical data.calculated (found) for C 29 H 43 BF 4 N 2 ；C,68.77(68.62)；H,8.56(8.51)；N,5.53(5.32). 1 H NMR(600MHz,CDCl 3 )δ(ppm):8.33(s,1H,N-CH-N),6.94(s,4H,HMes),4.19(m bd,2H,CH-Bu),2.31(s,6H,CH 3 Mes),2.27(s,12H,CH 3 Mes),1.75(m,bd,4H,CH 2 -CH 2 ),1.26(m,bd 6H,CH 2 -CH 2 -),1.09(m,bd 2H,CH 2 -CH 2 -),0.81(t,6H,3J(H,H)＝7.27Hz,CH 2 -CH 3 ) 13 C NMR(150MHz,CDCl 3 )δ(ppm):158.2,140.5,135.7,134.7,130.5,129.0,69.5,33.0,27.1,22.4,21.9,21.0,18.4,18.1,13.7.
4) Preparation of ruthenium (I-1) dichloride catalyst of 4, 5-dibutyl-1, 3-bis (2, 4, 6-trimethylphenyl) -2- (imidazolidinylidene) (benzylidene) (tricyclohexylphosphine)
Into a dry flask was charged 4.94g (9.75 mmol) of 4, 5-dibutyl-1, 3-bis (trimethylphenyl) -4, 5-dihydroimidazolium tetrafluoroborate (II-1) (CF: C) under nitrogen 29 H 43 BF 4 N 2 The method comprises the steps of carrying out a first treatment on the surface of the Mw:506.48 g/mol), 1.05g (9.34 mmol) of potassium tert-butoxide (Mw: 112.2 g/mol) and 50mL of dry tetrahydrofuran, the resulting mixture was stirred at room temperature for 4 hours. Removing tetrahydrofuran solvent by rotary evaporation, and vacuum drying to obtain solid substance. To the resulting solid were added 4.44g (5.30 mmol) of ruthenium complex Grubbs I (1) (Mw: 836.98 g/mol) and 60mL of dry toluene, and the resulting mixture was heated to 70℃and stirred for 4 hours. The solvent was removed by rotary evaporation, and the resulting solid material was subjected to silica gel column chromatography (petroleum ether/dichloromethane (1:1) as developing solvent) to give a reddish-white solution. Removing solvent by rotary evaporation under vacuum to obtain viscous brownish red solid material I-1 (Cf: C) 54 H 81 Cl 2 N 2 PRu, mw: 961.20). Weigh 3.97g (4.13 mmol); yield: 78%. Analytical data.calculated (found) for C 54 H 81 Cl 2 N 2 PRu；C,67.48(67.41)；H,8.49(8.51)；N,2.91(2.95). 1 H NMR(600MHz,CDCl 3 ):δ0.70-2.81(m,51H),2.01(s,6H,CH 3 ),2.28(s,12H,CH 3 ),3.77(s,2H,NCHCHN),6.68-7.30(m,9H),19.39(s,1H,RuCHAr). 31 P-NMR(81.0MHz,CDCl 3 ):δ29.3.
Example 2: synthesis of 1, 3-bis (2, 4, 6-trimethylphenyl) -2- (4, 5-dihexylimidazolidine subunit) (dichlorobenzene methylene) (tricyclohexylphosphine) ruthenium (I-2) as catalyst containing hexyl substituent
The synthesis of the catalyst I-2 containing the hexyl substituent comprises the following steps:
1) Preparation of N, N' -bis (2, 4, 6-trimethyl) phenylenediimine (9)
To a 500mL three-necked flask equipped with a dropping funnel, 3.73mL of an aqueous glyoxal (8) solution (40%) and 80mL of methanol were successively added, and the mixture was stirred to dissolve glyoxal. To the dropping funnel were added 9.12mL of m-trimethylamine (7), 10mL of methanol, and slowly dropped into the flask. The reaction mixture was stirred for 12 hours at a temperature of about 22 ℃. In this process, a bright yellow precipitate slowly separated from the reaction solution. After the reaction, the reaction solution was filtered to obtain a yellow solid, the solid was washed three times with water and once with methanol, and dried in vacuo to obtain yellow crystalline product 9. Weigh 6.5g and yield 70%. Analytical data.calculated (found) for C 20 H 24 N 2 C,82.15(82.12)；H,8.27(8.20). 1 H-NMR(400MHz,CDCl 3 ):δ(ppm):2.15(s,12H,CH 3 ),2.30(s,6H,CH 3 ),6.96(s,4H,CHar),8.10(s,2H,CHar). 13 C-NMR(100MHz,CDCl 3 )δ(ppm):18.0,20.9，126.4,128.9,134.0,147.4,162.9。
2) Preparation of N7, N8-bis (2, 4, 6-trimethyl) phenyltetradecane-7, 8-diamine (12)
To a dry 100mL ampoule under nitrogen, 2.92g (0.01 mol; mw:292.46 g/mol) of N, N' -bis (2, 4, 6-trimethyl) phenylenediimine (9) was added and dissolved by stirring with 50mL of tetrahydrofuran. Then, the flask was placed in an ethanol cold bath at-78 ℃ and stirred for cooling. After the reaction solution was sufficiently cooled, 9.16mL (0.022 mol) of a solution of hexyl lithium (2.2M toluene solution) was slowly dropped by a syringe. After the completion of the dropwise addition, the reaction mixtureThe temperature was slowly increased under stirring and stirring was continued for 1.5h. The process solution gradually changed from cloudy to yellow transparent. After the reaction was completed, the reaction solution was cooled to 0 ℃, 20mL of a saturated ammonium chloride solution was added to the reaction solution, the solution was layered, after the organic phase was separated, the aqueous phase was further extracted three times with 20mL of ethyl acetate, the organic phases were combined, dried over anhydrous sodium sulfate, and the solvent was distilled off to obtain 4.32g (9.284 mmol; mw:450.76 g/mol) of a yellow oil (12), yield: 96%. Analytical data.calculated (found) for C 32 H 52 N 2 C,82.70(82.61)；H,11.28(11.41)；N,6.03(5.95). 1 H-NMR(400MHz,CDCl 3 ):δ(ppm):0.87(t,6H, 3 J(H,H)＝5.8Hz,CH 3 ),1.26(m,12H,CH 2 ),1.47(m,4H,CH 2 ),1.72(m,4H,CH 2 ),2.03(s,12H,CH 3 ),2.21(s,6H,CH 3 ),2.93(br,2H,NH),3.11(m,2H,CH),6.73(s,4H,CHar). 13 C-NMR(100MHz,CDCl 3 )δ(ppm):14.1,18.2,21.9,22.7,27.0,29.3,30.5,31.8,65.0,126.0,128.7,129.2,142.2。
3) Preparation of 4, 5-dihexyl-1, 3-bis (trimethylphenyl) -4, 5-dihydro-1H-imidazolium tetrafluoroborate (II-2)
4.32g (9.584 mmol) of N7, N8-bis (2, 4, 6-trimethyl) phenyltetradecane-7, 8-diamine (12) (Mw: 450.76 g/mol) (13), NH 4 BF 4 ( Mw:104.84g/mol;1.125g,10.73mmol, 10% molar excess) and 19mL CH (OEt ) 3 Is heated to 125℃and stirred for 15h. During this time the solution gradually turned to a reddish brown color. After cooling to room temperature, the mixture was washed with petroleum ether (50X 3 mL) to separate a lower oil, and 100mL of CH was used 2 Cl 2 Dissolving, filtering to remove insoluble substances to obtain clear solution, removing solvent by rotary evaporation, and vacuum drying to obtain brown viscous oily substance which is 4, 5-dihexyl-1, 3-di (trimethylphenyl) -4, 5-dihydro-1H-imidazolium tetrafluoroborate (II-2), performing one-time diatomite column chromatography with dichloromethane as solvent, removing solvent by rotary evaporation, and cooling for a long time to obtain 4.53g (8.05 mmol;mw:562.59 g/mol) in 75% yield. Analytical data.calculated (found) for C 33 H 51 BF 4 N 2 ；C,70.45(70.52)；H,9.14(9.31)；N,4.98(5.02). 1 H NMR(400MHz,CO(CD 3 ) 2 )δ(ppm):8.45(s,1H,N-CH-N),6.99(s,4H,HMes),4.19(m bd,2H,CH-hexyl),2.35(s,12H,CH 3 Mes),2.32(s,6H,CH 3 Mes)，1.21-1.28(m,bd 20H,CH 2 -CH 2 -),0.85(t,6H, 3 J(H,H)＝5.9Hz,CH 2 -CH 3 ) 13 C NMR(100MHz,CO(CD 3 ) 2 )δ(ppm):144.2(N-C-N),140.3(CAr),135.6(CHAr),135.4(CHAr),129.7(CHAr),129.6(CHAr),129.4(CHAr),129.2(CAr),66.5(CH-hexyl),66.1(CH-Hexyl),28.3(CH 3 -Mes),17.8(CH 3 Mes),31.8(CH 2 ),29.3(CH 2 ),27.3(CH 2 ),25.6(CH 2 ),22.7(CH 2 ),14.1(CH 3 -hexyl)； 19 F NMR(376MHz,CO(CD 3 ) 2 )δ(ppm):-151.7.
4) Preparation of catalyst 1, 3-bis (2, 4, 6-trimethylphenyl) -2- (4, 5-dihexylimidazolidine subunit) (benzylidene) (tricyclohexylphosphine) ruthenium dichloride catalyst (I-2)
To the dried flask was added 4, 5-dihexyl-1, 3-bis (trimethylphenyl) -4, 5-dihydro-1H-imidazolium tetrafluoroborate (II-2) (Mw: 562.9g/mol;4.94g,8.78 mmol), potassium t-butoxide (Mw: 112.2g/mol;1.05g,9.33 mmol) and 50mL of dry tetrahydrofuran under nitrogen. The resulting mixture was stirred at room temperature for 4 hours. Removing tetrahydrofuran solvent by rotary evaporation, and vacuum drying to obtain solid substance. To the resulting solid was added 4.44g (5.37 mmol; mw:836.98 g/mol) of ruthenium complex Grubbs I (1) and 60mL of dry toluene, which was dissolved with stirring. The reaction mixture was heated to 70 ℃ and stirred for 2.5h while maintaining this temperature. After the reaction solution is cooled to room temperature, petroleum ether/dichloromethane (1:1) is used as developing agent, and the wine red solution is obtained through silica gel column chromatography. Removing solvent by vacuum rotary evaporation to obtain viscous brownish red solid Bulk Material I-2,3.97g (0.39 mmol) (Cf: C) 58 H 89 Cl 2 N 2 PRu, mw: 1017.3). Yield: 72.6%. 1 H NMR(400MHz,CDCl 3 ):δ0.88-2.44(m,59H),1.93(s,6H,CH 3 ),2.34(s,12H,CH 3 ),4.03(s,2H,NCHCHN),7.04-7.38(m,9H),19.16(s,1H,RuCHAr). 31 P-NMR(81.0MHz,CDCl 3 ):δ29.2.
Example 3: preparation of 4-butyl-5-hexyl-1, 3-bis (2, 4, 6-trimethylphenyl) -2- (imidazolidinylidene) (benzylidene) (tricyclohexylphosphine) ruthenium (I-3) dichloride
1.1 Preparation of N, N' -bis (2, 4, 6-trimethylphenyl) dodecane-5, 6-diamine (14)
To a dry 250mL ampoule under nitrogen, 2.92g of N, N' -bis (2, 4, 6-trimethyl) phenylenediimine (9) (Mw: 292.46g/mol;10.0 mmol) was added and dissolved by stirring with 100mL of tetrahydrofuran. Then, the flask was placed in an ethanol cold bath at-78 ℃ and stirred for cooling. After the reaction solution was sufficiently cooled, 4.17mL (10.0 mmol) of a solution of hexyl lithium (2.4M toluene solution) was slowly dropped by a syringe. The reaction solution was cooled again to-78℃and 6.25mL (10.0 mmol) of a solution of butyllithium (1.6M in hexane) was slowly added dropwise by syringe. After the addition was completed, the reaction mixture was slowly warmed to room temperature with stirring, and stirring was continued for 0.5h. Then, the reaction solution was cooled to 0℃and 20mL of a saturated ammonium chloride solution was added to the reaction solution, followed by stirring for about 10 minutes. After allowing the solution to stand until the layers separated, the organic phase was separated, the aqueous phase was extracted three times with 20mL ethyl acetate, and the organic phases were combined and dried over anhydrous sodium sulfate. The solvent was removed by rotary evaporation to give an orange viscous oil which was identified as N, N' -bis (2, 4, 6-trimethylphenyl) dodecane-5, 6-diamine (14) (CF: C 30 H 48 N 2 The method comprises the steps of carrying out a first treatment on the surface of the Mw:436.73 g/mol), weight 4.28g (9.80 mmol), yield 98%.
1.2 Preparation of N, N' -bis (2, 4, 6-trimethylphenyl) dodecane-5, 6-diamine (14) by means of a formative reagent
To a dry 250mL ampoule under nitrogen, 1.46g (5.0 mmol) of N-N' -bis (2, 4, 6-trimethyl) phenylenediimine (9) (Mw: 292.46 g/mol) was added and dissolved with stirring 100mL of tetrahydrofuran. Then, the flask was placed in an ethanol cold bath at-78 ℃ and stirred for cooling. After the reaction solution was sufficiently cooled, 7.5mL (6.0 mmol) of a solution of hexylmagnesium bromide (0.8M in THF) was slowly dropped by a syringe. After the addition was completed, the reaction mixture was slowly cooled to room temperature under stirring, and stirring was continued for 1.5 hours. The process solution gradually changed from orange red to yellow and transparent. The reaction mixture was cooled to-78℃and 3.75mL (6.0 mmol) of a solution of butyllithium (1.6M in hexane) was slowly added dropwise using a syringe. After the addition was completed, the reaction mixture was slowly warmed to room temperature with stirring, and stirring was continued for 0.5h. The reaction solution was cooled to 0℃and 20mL of a saturated ammonium chloride solution was added to the reaction solution, the solution was layered, and after separating out the organic phase, the aqueous phase was further extracted three times with 20mL of ethyl acetate, and the organic phases were combined and dried over anhydrous sodium sulfate. The solvent was distilled off to give N, N' -bis (2, 4, 6-trimethylphenyl) dodecane-5, 6-diamine (14) (CF: C) as an orange viscous oil 30 H 48 N 2 The method comprises the steps of carrying out a first treatment on the surface of the Mw:436.73 g/mol), weight 2.13g (4.87 mol), yield 97.4%.
2) Preparation of 4-butyl-5-hexyl-1, 3-bis (2, 4, 6-trimethylphenyl) -4, 5-dihydroimidazolium tetrafluoroborate (II-3)
4.19g (9.58 mmol) of N, N' -bis (2, 4, 6-trimethylphenyl) dodecane-5, 6-diamine (14) (CF: C 30 H 48 N 2 ；Mw:436.73g/mol)(13)、NH 4 BF 4 (Mw: 104.84g/mol;1.125g,10.73 mmol) and 19mL CH (OEt) 3 Is heated to 125℃and stirred for 15h. During this time the solution gradually turned to a reddish brown color. After cooling to room temperature, the mixture was washed with petroleum ether (50X 3 mL) to separate a lower oily substance, and the oily substance was taken up in an aqueous medium of 100mLCH 2 Cl 2 Dissolving, filtering to remove insoluble substances to obtain clear solution, removing solvent by rotary evaporation, and vacuum drying to obtain brown viscous oily substance, which is 4-butyl-5-hexyl-1, 3-bis (2, 4,6 trimethylphenyl) -4, 5-dihydroimidazolium tetrafluoroborate (15) (CF: C) 31 H 47 BF 4 N 2 The method comprises the steps of carrying out a first treatment on the surface of the Mw:534.53 g/mol). Weigh 3.85g (7.20 mmol) and yield 75%. Dichloromethane is used as solvent, through one-time chromatography by using a diatomite column, then the solvent is removed by rotary evaporation, and the crystalline substance can be obtained after long-time standing.
3) Preparation of 4-butyl-5-hexyl-1, 3-bis (2, 4, 6-trimethylphenyl) -2- (imidazolidinylidene) (benzylidene) (tricyclohexylphosphine) ruthenium (I-3) dichloride
Into a dry flask was charged 4.69g (8.776 mmol) of 4-butyl-5-hexyl-1, 3-bis (2, 4, 6-trimethylphenyl) -4, 5-dihydroimidazolium tetrafluoroborate (15) (CF: C) under nitrogen 31 H 47 BF 4 N 2 The method comprises the steps of carrying out a first treatment on the surface of the Mw:534.53 g/mol), 1.047g (9.33 mmol) of potassium tert-butoxide (Mw: 112.21 g/mol), 50mL of dry tetrahydrofuran, and the resulting mixture was stirred at room temperature for 4 hours. Removing tetrahydrofuran solvent by rotary evaporation, and vacuum drying to obtain solid substance. To the resulting solid were added 4.44g (5.37 mmol) of ruthenium complex Grubbs I (Mw: 836.98 g/mol) and 60mL of dry toluene, which was dissolved with stirring. The reaction mixture was heated to 70 ℃ and stirred for 2.5h while maintaining this temperature. After the reaction solution is cooled to room temperature, petroleum ether/dichloromethane (1:1) is used as developing agent, and the wine red solution is obtained through silica gel column chromatography. Removing solvent by rotary evaporation under vacuum, and vacuum drying to obtain peach red solid substance (I-3) (CF: C) 56 H 85 Cl 2 N 2 PRu; mw: 989.25), weight 3.82g (3.87 mmol), yield 72%.
With reference to the preparation methods of examples 1 and 2, R substituent is-C 10 H 21 (straight chain) -C 14 H 29 (straight chain) -C 18 H 37 (straight chain) and
is a catalyst of (a).
Preparation of the catalyst composition:
weighing a certain amount of the synthesized catalyst modified by long alkyl chain, and adding liquid chlorinated paraffin to prepare a catalyst composition, wherein the catalyst composition can be stored for a long time in a room temperature environment.
The chlorine content of the liquid chlorinated paraffin is as follows: 5% -65%;
The concentration ranges of the catalyst composition are: 0.08mol/L to 0.7mol/L;
the liquid chlorinated paraffin can be purchased or self-made, and the self-making method refers to the following two methods: (1) Adding metered liquid paraffin into a reaction kettle, introducing chlorine gas for reaction, sequentially washing with NaOH aqueous solution and aqueous solution until the acid value (mgkOH/g) is less than or equal to 0.3, decompressing and dehydrating until the water content is less than 2%, and discharging to obtain a finished product; (2) Adding the metered liquid paraffin into a reaction kettle, dropwise adding thionyl chloride under stirring, refluxing for 5-7 h, and recovering excessive thionyl chloride at normal pressure. Washing with water and NaOH water solution in turn, decompressing and dehydrating until the water content is less than 2%, discharging to obtain the finished product.
The preparation examples of the catalyst composition are shown in table 1.
Table 1 preparation examples of catalyst compositions
Comparative example 1:
2.6g of commercially available Grubbs 2 were weighed out nd Catalyst was dissolved in 12.2mL of a paraffin solution having a chlorine content of 52% to prepare Grubbs 2 at a concentration of 0.25mol/L nd A catalyst solution. Commercial Grubbs 2 was found at ambient temperatures below 10deg.C nd The solubility of the catalyst in chlorinated paraffin solution is reduced, the catalyst is easy to separate out in the storage process, the catalytic activity is reduced, and the industrial application is not facilitated. At the same time, commercialized Grubbs 2 nd Catalyst was dissolved in a paraffin solution having a chlorine content of 52% to prepare Grubbs2 at a concentration of 0.05mol/L nd After the catalyst solution was left at room temperature for two weeks, more crystals were observed to precipitate. Experiments have also found that commercial Grubbs2 at ambient temperature and pressure nd The catalyst started to decompose after about 2 hours in toluene solvent, losing catalytic activity.
In addition, the catalyst with R substituent being methyl, ethyl or propyl is dissolved in liquid chlorinated paraffin, and crystallization of the catalyst is easy to precipitate in the long-time standing process, so that the use effect is affected.
Comparative example 2:
the present invention contemplates commercializing Grubbs2 nd The catalyst, the catalysts prepared in examples 1 and 2 of the present invention were dissolved in commercially available liquid paraffin, respectively. The results show that commercial Grubbs2 nd The catalyst is insoluble in liquid paraffin; the catalysts prepared in examples 1 and 2 of the present invention were soluble in liquid paraffin, but the catalyst composition formed was a gel-like substance which did not convert to a liquid state even when heated to 60 to 70 ℃.
Comparative example 3:
the invention tries chlorinated paraffin with different chlorine content, when the chlorine content of the chlorinated paraffin is lower than 5%, the chlorinated paraffin is in a gel state, and a large amount of solvent is needed to dilute and dissolve before use, so that the chlorinated paraffin is inconvenient to use. When the chlorine content is higher than 65%, the liquid paraffin is in a high-viscosity state, even in a solid state (75% commercial chlorinated paraffin is solid), which is unfavorable for the measurement of the catalyst, is difficult to uniformly mix with the substrate, causes local polymerization, and cannot finish the compression molding process.
Effect example 1
To evaluate the catalytic activity of the catalyst composition on ring-closure metathesis, a test was performed with N, N-diallyl-4-methylbenzenesulfonamide (16) as substrate.
Effect example 1.1:
to a 5mL single-necked flask under nitrogen, 251mg (1.0 mmol; cf: C) was added 13 H 17 NO 2 S, S; mw: 251.1) substrate 16, 0.02mL of the catalyst composition prepared in example 4. The reaction mixture was heated to 40℃and stirred for 2h. After the reaction was cooled to room temperature, the mixture was separated by column chromatography using petroleum ether/ethyl acetate (5:1) as eluent to give product 17, weighing 219.7mg (0.984 mmol; cf: C) 11 H 13 NO 2 S, S; mw 223.3), yield 98.4%. 1 H NMR(400MHz,CDCl 3 )δ(ppm):2.42(s,3H),4.12(d, 3 J H-H ＝4.5Hz,4H),5.65(d, 3 J H-H ＝4.5Hz,2H),7.32(d, 3 J H-H ＝8.3Hz,2H),7.72(d, 3 J H-H ＝8.3Hz,2H)； 13 C NMR(100MHz,CDCl 3 )δ(ppm):21.8,55.1,125.7,127.7,130.0,134.6,143.7。
Effect example 1.2:
to a 5mL single-necked flask under nitrogen, 251mg (1.0 mmol; cf: C) was added 13 H 17 NO 2 S, S; mw: 251.1) substrate 16, 0.006mL of the catalyst composition prepared in example 6. The reaction mixture was heated to 40℃and stirred for 2h. After the reaction was cooled to room temperature, the mixture was separated by column chromatography using petroleum ether/ethyl acetate (5:1) as eluent to give product 17, weighing 219.95mg (0.985 mmol; cf: C) 11 H 13 NO 2 S, S; mw 223.3), yield 98.8%. 1 H NMR(400MHz,CDCl 3 )δ(ppm):2.42(s,3H),4.12(d, 3 J H-H ＝4.5Hz,4H),5.65(d, 3 J H-H ＝4.5Hz,2H),7.32(d, 3 J H-H ＝8.3Hz,2H),7.72(d, 3 J H-H ＝8.3Hz,2H)； 13 C NMR(100MHz,CDCl 3 )δ(ppm):21.8,55.1,125.7,127.7,130.0,134.6,143.7。
Effect example 1.3:
to a 5mL single-necked flask under nitrogen, 251mg (1.0 mmol; cf: C) was added 13 H 17 NO 2 S, S; mw: 251.1) substrate 16, 0.008mL of the catalyst composition prepared in example 9. The reaction mixture was heated to 40℃and stirred for 2h. After the reaction was cooled to room temperature, the reaction mixture was separated by column chromatography using petroleum ether/ethyl acetate (5:1) as eluent to give product 17, weighing 218.8mg (0.98 mmol; cf: C) 11 H 13 NO 2 S, S; mw 223.3), yield 98%. 1 H NMR(400MHz,CDCl 3 )δ(ppm):2.42(s,3H),4.12(d, 3 J H-H ＝4.5Hz,4H),5.65(d, 3 J H-H ＝4.5Hz,2H),7.32(d, 3 J H-H ＝8.3Hz,2H),7.72(d, 3 J H-H ＝8.3Hz,2H)； 13 C NMR(100MHz,CDCl 3 )δ(ppm):21.8,55.1,125.7,127.7,130.0,134.6,143.7。
Effect example 1.4:
to a 5mL single-necked flask under nitrogen, 251mg (1.0 mmol; cf: C) was added 13 H 17 NO 2 S, S; mw: 251.1) substrate 16, 0.007mL of the catalyst composition prepared in example 10. The reaction mixture was heated to 40℃and stirred for 2h. After the reaction was cooled to room temperature, the reaction mixture was separated by column chromatography using petroleum ether/ethyl acetate (5:1) as eluent to give product 17, weighing 219.1mg (0.981 mmol; cf: C 11 H 13 NO 2 S, S; mw 223.3), yield 98.1%. 1 H NMR(400MHz,CDCl 3 )δ(ppm):2.42(s,3H),4.12(d, 3 J H-H ＝4.5Hz,4H),5.65(d, 3 J H-H ＝4.5Hz,2H),7.32(d, 3 J H-H ＝8.3Hz,2H),7.72(d, 3 J H-H ＝8.3Hz,2H)； 13 C NMR(100MHz,CDCl 3 )δ(ppm):21.8,55.1,125.7,127.7,130.0,134.6,143.7。
Effect example 2
To evaluate the catalytic activity of the catalyst composition on the intermolecular cross-metathesis of olefins, allyl benzoate (18) and styrene (19) were selected as substrates for activity testing.
Effect example 2.1:
162mg (1.0 mmol; cf: C) are introduced into a 5mL Schlenk flask under nitrogen protection 10 H 10 O 2 Mw: 162.2) substrate 18, 208mg (2.0 mmol; cf: C 8 H 8 Mw 104.2) styrene 19 and 0.083mL of the catalyst composition prepared in example 5. Mixing the reactionThe mixture was heated to 45℃and stirred for 6h. The reaction mixture was separated by column chromatography to give the cross-metathesis product 20, weighing 228.8mg (0.96 mmol; cf: C 16 H 14 O 2 Mw: 238.3), yield 96%. 1 H NMR(400MHz,CDCl 3 ):δ8.12(d,J＝7.2Hz,2H,HAr),7.61(t,J＝7.2Hz,1H,HAr),7.50(q,J＝6.8Hz,4H,HAr),7.38(t,J＝6.8Hz,2H,HAr),7.31(t,J＝4.8Hz,1H,HAr),6.79(d,J＝16Hz,1H,Ph＝CH),6.50(dt,J＝16Hz,J＝6.4Hz,1H,CH＝CH 2 ),5.02(dd,J＝6.4Hz,J＝1.2Hz,2H,CH 2 )； 13 C-NMR(400MHz,CDCl 3 ):δ169.25,134.29,132.97,132.28,130.22,129.64,128.62,128.36,128.09,126.66,118.19,65.53(E/Z≧20/1)。
Effect example 2.2:
162mg (1.0 mmol; cf: C) are introduced into a 5mL Schlenk flask under nitrogen protection 10 H 10 O 2 Mw: 162.2) substrate 18, 208mg (2.0 mmol; cf: C 8 H 8 Mw 104.2) styrene 19 and 0.071mL of the catalyst composition prepared in example 6. The reaction mixture was heated to 45℃and stirred for 6h. The reaction mixture was separated by column chromatography to give the cross-metathesis product 20, weighing 229.2mg (0.962 mmol; cf: C 16 H 14 O 2 Mw: 238.3), yield 96.2%. 1 H NMR(400MHz,CDCl 3 ):δ8.12(d,J＝7.2Hz,2H,HAr),7.61(t,J＝7.2Hz,1H,HAr),7.50(q,J＝6.8Hz,4H,HAr),7.38(t,J＝6.8Hz,2H,HAr),7.31(t,J＝4.8Hz,1H,HAr),6.79(d,J＝16Hz,1H,Ph＝CH),6.50(dt,J＝16Hz,J＝6.4Hz,1H,CH＝CH 2 ),5.02(dd,J＝6.4Hz,J＝1.2Hz,2H,CH2)； 13 C-NMR(400MHz,CDCl 3 ):δ169.25,134.29,132.97,132.28,130.22,129.64,128.62,128.36,128.09,126.66,118.19,65.53(E/Z≧20/1)。
Effect example 2.3:
162mg (1.0 mmol; cf: C) are introduced into a 5mL Schlenk flask under nitrogen protection 10 H 10 O 2 Mw: 162.2) substrate 18, 208mg (2.0 mmol; cf: C 8 H 8 Mw 104.2) styrene 19, 0.25mL of the catalyst composition prepared in example 8. The reaction mixture was heated to 45℃and stirred for 6h. Separating the reaction mixture by column chromatography to obtain cross-metathesisProduct 20, weight 224.2mg (0.941 mmol; cf: C 16 H 14 O 2 Mw 238.3), yield 94.1%. 1 H NMR(400MHz,CDCl 3 ):δ8.12(d,J＝7.2Hz,2H,HAr),7.61(t,J＝7.2Hz,1H,HAr),7.50(q,J＝6.8Hz,4H,HAr),7.38(t,J＝6.8Hz,2H,HAr),7.31(t,J＝4.8Hz,1H,HAr),6.79(d,J＝16Hz,1H,Ph＝CH),6.50(dt,J＝16Hz,J＝6.4Hz,1H,CH＝CH 2 ),5.02(dd,J＝6.4Hz,J＝1.2Hz,2H,CH 2 )； 13 C-NMR(400MHz,CDCl 3 ):δ169.25,134.29,132.97,132.28,130.22,129.64,128.62,128.36,128.09,126.66,118.19,65.53(E/Z≧20/1)。
Effect example 2.4:
162mg (1.0 mmol; cf: C) are introduced into a 5mL Schlenk flask under nitrogen protection 10 H 10 O 2 Mw: 162.2) substrate 18, 208mg (2.0 mmol; cf: C 8 H 8 Mw 104.2) styrene 19 and 0.10mL of the catalyst composition prepared in example 9. The reaction mixture was heated to 45℃and stirred for 6h. The reaction mixture was then separated by column chromatography to give the cross-metathesis product 20, weighing 224.5mg (0.942 mmol; cf: C 16 H 14 O 2 Mw 238.3), yield 94.2%. 1 H NMR(400MHz,CDCl 3 ):δ8.12(d,J＝7.2Hz,2H,HAr),7.61(t,J＝7.2Hz,1H,HAr),7.50(q,J＝6.8Hz,4H,HAr),7.38(t,J＝6.8Hz,2H,HAr),7.31(t,J＝4.8Hz,1H,HAr),6.79(d,J＝16Hz,1H,Ph＝CH),6.50(dt,J＝16Hz,J＝6.4Hz,1H,CH＝CH 2 ),5.02(dd,J＝6.4Hz,J＝1.2Hz,2H,CH 2 )； 13 C-NMR(400MHz,CDCl 3 ):δ169.25,134.29,132.97,132.28,130.22,129.64,128.62,128.36,128.09,126.66,118.19,65.53(E/Z≧20/1)。
Effect example 3
To evaluate the use of the catalyst composition in a ring-opening metathesis polymerization reaction, dicyclopentadiene was selected as a monomer for testing.
Effect example 3.1:
200g of DCPD monomer was taken and added dropwise to 0.6mL of the catalyst composition prepared in example 6, and the mixture was stirred until the color was uniform. And (3) carrying out defoaming treatment on the solution, pouring a die, and curing and forming by adopting a curing program of 60-100 ℃/2h to obtain a sample plate with the thickness of 4mm and smooth and flat surface. Finally, cutting the spline for mechanical property test. The result is that: tensile strength 59.0MPa, tensile modulus 1919.2MPa and elongation at break 7.87%.
Effect example 3.2:
200g of DCPD monomer was taken and added dropwise to 0.35mL of the catalyst composition prepared in example 7, and the mixture was stirred until the color was uniform. And (3) carrying out defoaming treatment on the solution, pouring a die, and curing and forming by adopting a curing program of 60-100 ℃/2h to obtain a sample plate with the thickness of 4mm and smooth and flat surface. Finally, cutting the spline for mechanical property test. The result is that: tensile strength 59.3MPa, tensile modulus 1919.7MPa and elongation at break 7.82%.
Effect example 3.3:
200g of DCPD monomer was taken and 1.0mL of the catalyst composition prepared in example 9 was added dropwise, and the mixture was stirred until the color was uniform. And (3) carrying out defoaming treatment on the solution, pouring a die, and curing and forming by adopting a curing program of 60-100 ℃/2h to obtain a sample plate with the thickness of 4mm and smooth and flat surface. Finally, cutting the spline for mechanical property test. The result is that: tensile strength 58.5MPa, tensile modulus 1911.6MPa and elongation at break 7.67%.
Effect example 3.4:
200g of DCPD monomer was taken and added dropwise to 0.42mL of the catalyst composition prepared in example 11, followed by mixing and stirring until the color was uniform. And (3) carrying out defoaming treatment on the solution, pouring a die, and curing and forming by adopting a curing program of 80 ℃/2h to obtain a sample plate with the thickness of 4mm and a smooth and flat surface. Finally, cutting the spline for mechanical property test. The result is that: tensile strength 58.9MPa, tensile modulus 1912.2MPa and elongation at break 7.61%.
Comparative example 3.1:
200g of DCPD monomer are weighed and 0.2g of Grubbs 2 dissolved in toluene solvent are added dropwise nd And (3) mixing and stirring the catalyst uniformly, then carrying out defoaming treatment, and pouring the catalyst into a die. Then set upAnd (3) setting a curing program of 60-100 ℃/2h for curing and forming to obtain the sample plate with the thickness slightly smaller than 4mm (about 3.96 mm), wherein the surface of the plate has obvious flow mark phenomenon. This is mainly caused by the volatilization of toluene solvent during the curing process. Finally, cutting the spline for mechanical property test. The result is that: tensile strength 59.4MPa, tensile modulus 1913.4MPa and elongation at break 7.42%.
Comparative example 3.2:
for the purpose of carrying out An application control experiment with the present invention, the present invention is strictly in accordance with the literature (Taber D.F., frankowski K.J., grubbs' catalyst in paraffin: an air-stable preparation for alkene metathesis [ J.) ]Grubbs 2 was prepared by J.Org.chem.,2003,68 (22): 6047-6048) nd Solid paraffin mixtures of catalysts. 200g DCPD monomer was taken and 1.4g Grubbs 2 was added nd The paraffin wax mixture (0.15 mmol/g,0.21 mmol) of the catalyst was found to be insoluble in DCPD monomer and still not uniformly mixed after stirring for 12 hours. And (3) raising the temperature to 40 ℃, and finding that the periphery of the solid paraffin is polymerized in the stirring process, wrapping the undissolved solid paraffin mixture, and pouring a die to treat the solution without defoaming treatment. Polymerization experiments failed, indicating Grubbs 2 reported in the literature nd The paraffin wax mixture of the catalyst must be in the presence of a solvent to be catalytic.
Long term storage stability test
After the catalyst composition prepared in example 4-example 11 was left to stand for six months at room temperature, a storage stability verification experiment was performed.
Effect example 4
After the catalyst was stored in the chlorinated paraffin solution for 6 months, its catalytic activity for ring closure metathesis reaction was evaluated, and N, N-diallyl-4-methylbenzenesulfonamide (16) was selected as a substrate for testing.
Effect example 4.1:
under the protection of nitrogen, 5mL of the mixture is added to the mixture251mg (1.0 mmol; cf: C) are added to the flask 13 H 17 NO 2 S, S; mw: 251.1) substrate 16, 0.01mL of the catalyst composition prepared in example 4 after 6 months storage. The reaction mixture was heated to 40℃and stirred for 2h. After the reaction was cooled to room temperature, the reaction mixture was separated by column chromatography using petroleum ether/ethyl acetate (5:1) as eluent to give product 17, weighing 217.7mg (0.0975 mmol; cf: C) 11 H 13 NO 2 S, S; mw 223.3), yield 97.5%. 1 H NMR(400MHz,CDCl 3 )δ(ppm):2.42(s,3H),4.12(d, 3 J H-H ＝4.5Hz,4H),5.65(d, 3 J H-H ＝4.5Hz,2H),7.32(d, 3 J H-H ＝8.3Hz,2H),7.72(d, 3 J H-H ＝8.3Hz,2H)； 13 C NMR(100MHz,CDCl 3 )δ(ppm):21.8,55.1,125.7,127.7,130.0,134.6,143.7。
Effect example 4.2:
to a 5mL single-necked flask under nitrogen, 251mg (1.0 mmol; cf: C) was added 13 H 17 NO 2 S, S; mw: 251.1) substrate 16, 0.0057mL of the catalyst composition prepared in example 6 after 6 months storage. The reaction mixture was heated to 40℃and stirred for 2h. After the reaction was cooled to room temperature, the reaction mixture was separated by column chromatography using petroleum ether/ethyl acetate (5:1) as eluent to give product 17, weighing 21.8.1mg (0.978 mmol; cf: C) 11 H 13 NO 2 S, S; mw 223.3), yield 97.8%. 1 H NMR(400MHz,CDCl 3 )δ(ppm):2.42(s,3H),4.12(d, 3 J H-H ＝4.5Hz,4H),5.65(d, 3 J H-H ＝4.5Hz,2H),7.32(d, 3 J H-H ＝8.3Hz,2H),7.72(d, 3 J H-H ＝8.3Hz,2H)； 13 C NMR(100MHz,CDCl 3 )δ(ppm):21.8,55.1,125.7,127.7,130.0,134.6,143.7。
Effect example 4.3:
to a 5mL single-necked flask under nitrogen, 251mg (1.0 mmol; cf: C) was added 13 H 17 NO 2 S, S; mw: 251.1) substrate 16, 0.008mL of the catalyst composition prepared in example 9 after 6 months of storage. The reaction mixture was heated to 40℃and stirred for 2h. After the reaction cooled to room temperature, the reaction mixture was cooled toPetroleum ether/ethyl acetate (5:1) as eluent, and separating by column chromatography to obtain a product 17, wherein the weight of the product is 217mg (0.972 mmol; cf: C) 11 H 13 NO 2 S, S; mw 223.3), yield 97.2%. 1 H NMR(400MHz,CDCl 3 )δ(ppm):2.42(s,3H),4.12(d, 3 J H-H ＝4.5Hz,4H),5.65(d, 3 J H-H ＝4.5Hz,2H),7.32(d, 3 J H-H ＝8.3Hz,2H),7.72(d, 3 J H-H ＝8.3Hz,2H)； 13 C NMR(100MHz,CDCl 3 )δ(ppm):21.8,55.1,125.7,127.7,130.0,134.6,143.7。
Effect example 4.4:
to a 5mL single-necked flask under nitrogen, 251mg (1.0 mmol; cf: C) was added 13 H 17 NO 2 S, S; mw: 251.1) substrate 16, 0.0067mL of the catalyst composition prepared in example 10 after 6 months storage. The reaction mixture was heated to 40℃and stirred for 2h. After the reaction was cooled to room temperature, the reaction mixture was separated by column chromatography using petroleum ether/ethyl acetate (5:1) as eluent to give product 17, weighing 217.7mg (0.975 mmol; cf: C) 11 H 13 NO 2 S, S; mw 223.3), yield 97.5%. 1 H NMR(400MHz,CDCl 3 )δ(ppm):2.42(s,3H),4.12(d, 3 J H-H ＝4.5Hz,4H),5.65(d, 3 J H-H ＝4.5Hz,2H),7.32(d, 3 J H-H ＝8.3Hz,2H),7.72(d, 3 J H-H ＝8.3Hz,2H)； 13 C NMR(100MHz,CDCl 3 )δ(ppm):21.8,55.1,125.7,127.7,130.0,134.6,143.7。
Effect example 5
After the catalyst was stored in a chlorinated paraffin solution for 6 months, the catalytic activity of the catalyst on the intermolecular cross-metathesis reaction of olefins was evaluated, and allyl benzoate (18) and styrene (19) were selected as substrates for activity test.
Effect example 5.1:
162mg (1.0 mmol; cf: C) are introduced into a 5mL Schlenk flask under nitrogen protection 10 H 10 O 2 Mw: 162.2) substrate 18, 208mg (2.0 mmol; cf: C 8 H 8 Mw 104.2) styrene 19 and 0.083mL of the catalyst composition prepared in example 5 after 6 months storage. The reaction mixture was heated to 45℃and stirred for 6h. After the reaction mixture had cooled to room temperature, the reaction mixture was separated by column chromatography to give the cross-metathesis product 20, weighing 226.6mg (0.95 mmol; cf: C) 16 H 14 O 2 Mw: 238.3), yield 95.1%. 1 H NMR(400MHz,CDCl 3 ):δ8.12(d,J＝7.2Hz,2H,HAr),7.61(t,J＝7.2Hz,1H,HAr),7.50(q,J＝6.8Hz,4H,HAr),7.38(t,J＝6.8Hz,2H,HAr),7.31(t,J＝4.8Hz,1H,HAr),6.79(d,J＝16Hz,1H,Ph＝CH),6.50(dt,J＝16Hz,J＝6.4Hz,1H,CH＝CH2),5.02(dd,J＝6.4Hz,J＝1.2Hz,2H,CH2)； 13 C-NMR(400MHz,CDCl 3 ):δ169.25,134.29,132.97,132.28,130.22,129.64,128.62,128.36,128.09,126.66,118.19,65.53(E/Z≧20/1)。
Effect example 5.2:
162mg (1.0 mmol; cf: C) are introduced into a 5mL Schlenk flask under nitrogen protection 10 H 10 O 2 Mw: 162.2) substrate 18, 208mg (2.0 mmol; cf: C 8 H 8 Mw 104.2) styrene 19, and 3.61mL of the catalyst composition prepared in example 6 after 6 months storage. The reaction mixture was heated to 45℃and stirred for 6h. After the reaction mixture cooled to room temperature, the reaction mixture was separated by column chromatography to give the cross-metathesis product 20, weighing 22.69mg (0.0952 mmol; cf: C 16 H 14 O 2 Mw 238.3), yield 95.2%. 1 H NMR(400MHz,CDCl 3 ):δ8.12(d,J＝7.2Hz,2H,HAr),7.61(t,J＝7.2Hz,1H,HAr),7.50(q,J＝6.8Hz,4H,HAr),7.38(t,J＝6.8Hz,2H,HAr),7.31(t,J＝4.8Hz,1H,HAr),6.79(d,J＝16Hz,1H,Ph＝CH),6.50(dt,J＝16Hz,J＝6.4Hz,1H,CH＝CH 2 ),5.02(dd,J＝6.4Hz,J＝1.2Hz,2H,CH 2 )； 13 C-NMR(400MHz,CDCl 3 ):δ169.25,134.29,132.97,132.28,130.22,129.64,128.62,128.36,128.09,126.66,118.19,65.53(E/Z≧20/1).
Effect example 5.3:
162mg (1.0 mmol; cf: C) are introduced into a 5mL Schlenk flask under nitrogen protection 10 H 10 O 2 Mw: 162.2) substrate 18, 208mg (2.0 mmol; cf: C 8 H 8 Mw 104.2) styrene 19, and 0.25mL of the catalyst composition prepared in example 8 after 6 months storage. The reaction mixture was heated to 45℃and stirred for 6h. After the reaction mixture cooled to room temperature, the reaction mixture was separated by column chromatography to give the cross-metathesis product 20, weighing 222.8mg (0.935 mmol; cf: C) 16 H 14 O 2 Mw: 238.3), yield 93.5%. 1 H NMR(400MHz,CDCl 3 ):δ8.12(d,J＝7.2Hz,2H,HAr),7.61(t,J＝7.2Hz,1H,HAr),7.50(q,J＝6.8Hz,4H,HAr),7.38(t,J＝6.8Hz,2H,HAr),7.31(t,J＝4.8Hz,1H,HAr),6.79(d,J＝16Hz,1H,Ph＝CH),6.50(dt,J＝16Hz,J＝6.4Hz,1H,CH＝CH 2 ),5.02(dd,J＝6.4Hz,J＝1.2Hz,2H,CH 2 )； 13 C-NMR(400MHz,CDCl 3 ):δ169.25,134.29,132.97,132.28,130.22,129.64,128.62,128.36,128.09,126.66,118.19,65.53(E/Z≧20/1)。
Effect example 5.4:
162mg (1.0 mmol; cf: C) are introduced into a 5mL Schlenk flask under nitrogen protection 10 H 10 O 2 Mw: 162.2) substrate 18, 208mg (2.0 mmol; cf: C 8 H 8 Mw 104.2) styrene 19, and 0.10mL of the catalyst composition prepared in example 9 after 6 months of storage. The reaction mixture was heated to 45℃and stirred for 6h. After the reaction mixture cooled to room temperature, the reaction mixture was separated by column chromatography to give the cross-metathesis product 20, weighing 223.3mg (0.937 mmol; cf: C 16 H 14 O 2 Mw: 238.3), yield 93.7%. 1 H NMR(400MHz,CDCl 3 ):δ8.12(d,J＝7.2Hz,2H,HAr),7.61(t,J＝7.2Hz,1H,HAr),7.50(q,J＝6.8Hz,4H,HAr),7.38(t,J＝6.8Hz,2H,HAr),7.31(t,J＝4.8Hz,1H,HAr),6.79(d,J＝16Hz,1H,Ph＝CH),6.50(dt,J＝16Hz,J＝6.4Hz,1H,CH＝CH 2 ),5.02(dd,J＝6.4Hz,J＝1.2Hz,2H,CH 2 )； 13 C-NMR(400MHz,CDCl 3 ):δ169.25,134.29,132.97,132.28,130.22,129.64,128.62,128.36,128.09,126.66,118.19,65.53(E/Z≧20/1)。
Effect example 6
After the catalyst is stored in chlorinated paraffin solution for 6 months, the catalytic activity of the catalyst on the ring opening metathesis polymerization reaction is evaluated, and dicyclopentadiene is selected as a monomer for testing.
Effect example 6.1:
200g of DCPD monomer was taken, and 0.6mL of the catalyst composition prepared in example 6 after 6 months of storage was added dropwise, and the mixture was stirred until the color was uniform. And (3) carrying out defoaming treatment on the solution, pouring a die, and curing and forming by adopting a curing program of 60-100 ℃/2h to obtain a sample plate with the thickness of 4mm and smooth and flat surface. Finally, cutting the spline for mechanical property test. The result is that: the tensile strength is 54.5MPa, the tensile modulus is 1905.3MPa, and the elongation at break is 8.11%.
Effect example 6.2:
200g of DCPD monomer was taken, and 0.35mL of the catalyst composition prepared in example 7 after 6 months of storage was added dropwise, and the mixture was stirred until the color was uniform. And (3) carrying out defoaming treatment on the solution, pouring a die, and curing and forming by adopting a curing program of 60-100 ℃/2h to obtain a sample plate with the thickness of 4mm and smooth and flat surface. Finally, cutting the spline for mechanical property test. The result is that: the tensile strength is 54.9MPa, the tensile modulus is 1907.2MPa, and the elongation at break is 8.04%.
Effect example 6.3:
200g of DCPD monomer was taken and 1.0mL of the catalyst composition prepared in example 9 stored for 6 months was added dropwise, and the mixture was stirred until the color was uniform. And (3) carrying out defoaming treatment on the solution, pouring a die, and curing and forming by adopting a curing program of 60-100 ℃/2h to obtain a sample plate with the thickness of 4mm and smooth and flat surface. Finally, cutting the spline for mechanical property test. The result is that: the tensile strength is 54.3MPa, the tensile modulus is 1892.3MPa, and the elongation at break is 8.03%.
Effect example 6.4:
200g of DCPD monomer was taken, 0.42mL of the catalyst composition prepared in example 11 stored for 6 months was added dropwise, and the mixture was stirred until the color was uniform. And (3) carrying out defoaming treatment on the solution, pouring a die, and curing and forming by adopting a curing program of 80 ℃/2h to obtain a sample plate with the thickness of 4mm and a smooth and flat surface. Finally, cutting the spline for mechanical property test. The result is that: the tensile strength is 54.8MPa, the modulus is 1893.1MPa, and the elongation at break is 7.98%.
Effect example 7: preparation of dicyclopentadiene/epoxy resin compositions
The following information on the raw materials and reagents are given in the following effect examples:
bisphenol a epoxy resin YN1828: purchased from Jiangsu Yang nong jin lake chemical industry Co., ltd, and the epoxy value was 0.51-0.54.
Dicyclopentadiene: DCPD.
4,4' -diaminodiphenyl sulfone: DDS.
2,4, 6-tris (dimethylaminomethyl) phenol: DMP-30.
The formulations of the respective raw materials in effect examples 7.1 to 7.7 and comparative examples 7.1 to 7.4 are shown in tables 2 and 3, respectively.
Chlorinated paraffin:
chlorine content is 5% and density is 0.82;
chlorine content is 42% and density is 1.16;
chlorine content is 52% and density is 1.24;
chlorine content was 60% and density was 1.45.
Mass calculation of the catalyst composition:
mass of catalyst in effect examples (7.1 to 7.10 = mass concentration of substance of catalyst composition:. Catalyst molecular weight: volume of catalyst composition in effect examples)
Mass of catalyst composition = mass of catalyst in effect examples (7.1-7.10) (volume of chlorinated paraffin for which chlorine content was determined in corresponding examples)/mass of catalyst in corresponding examples + mass of catalyst in effect examples (7.1-7.10)
TABLE 2
TABLE 3 Table 3
Effect examples 7.1 to 7.7:
the preparation process of the dicyclopentadiene/epoxy resin composition is as follows:
(1) Pre-mixing dicyclopentadiene with epoxy resin to form a uniform solution;
(2) Adding a curing agent and a curing accelerator, and mechanically grinding by using a three-roller grinder;
(3) When the average particle diameter of solid particles in the mixed solution is less than 30 mu m, adding the catalyst composition, stirring and mixing, and then mixing until the color of the solution is uniform by using a three-roller grinder;
(4) And (3) placing the mixed solution obtained in the step (3) in a vacuum drying oven to remove bubbles, and casting and curing by adopting curing procedures of 80 ℃/1h, 120 ℃/2h, 150 ℃/2h and 180 ℃/2h to obtain the thermosetting resin composition board for the copper-clad plate.
Comparative example 7.1:
the preparation process of the epoxy resin of comparative example 7.1 is as follows:
(1) Adding 4,4' -diaminodiphenyl sulfone (DDS) curing agent and 2,4, 6-tris (dimethylaminomethyl) phenol into epoxy resin, and mechanically grinding by using a three-roll grinder;
(2) When the average particle size of solid particles in the mixed solution is less than 30 mu m, the mixed solution is placed in a vacuum drying oven to remove bubbles, and the epoxy resin cured plate is obtained by casting and curing by adopting curing procedures of 80 ℃/1h, 120 ℃/2h, 150 ℃/2h and 180 ℃/2 h.
Comparative example 7.2:
the preparation process of the polydicyclopentadiene resin of comparative example 7.2 is as follows:
(1) Adding a 1, 3-bis (2, 4, 6-trimethylphenyl) -2- (4, 5-dibutyl imidazolidine) (dichlorobenzene) (tricyclohexylphosphine) ruthenium liquefaction catalyst into dicyclopentadiene, and stirring and mixing at normal temperature for 2min until the color is uniform;
(2) And (3) placing the mixed solution obtained in the step (1) in a vacuum drying oven to remove bubbles, and casting and curing by adopting a curing program of 80 ℃/1h and 120 ℃/2h to obtain the polydicyclopentadiene resin cured product plate.
Comparative example 7.3:
the preparation process of the dicyclopentadiene/epoxy resin composition of comparative example 7.3 is as follows:
(1) Pre-mixing dicyclopentadiene with epoxy resin to form a uniform solution;
(2) Adding 4,4' -diaminodiphenyl sulfone (DDS) curing agent and 2,4, 6-tris (dimethylaminomethyl) phenol, and mechanically grinding by using a three-roll grinder;
(3) When the average particle size of solid particles in the mixed solution is less than 30 mu m, the mixed solution is placed in a vacuum drying oven to remove bubbles, and the thermosetting resin composition plate for the copper-clad plate is obtained by casting and curing by adopting curing procedures of 80 ℃/1h, 120 ℃/2h, 150 ℃/2h and 180 ℃/2 h.
Comparative example 7.4:
the preparation process of the dicyclopentadiene/epoxy resin composition of comparative example 7.4 is as follows:
(1) Pre-mixing dicyclopentadiene with epoxy resin to form a uniform solution;
(2) Adding 4,4' -diaminodiphenyl sulfone (DDS) curing agent and 2,4, 6-tris (dimethylaminomethyl) phenol, and mechanically grinding by using a three-roll grinder;
(3) When the average particle diameter of solid particles in the mixed solution is less than 30 mu m, adding Grubbs second generation catalyst completely dissolved in toluene, stirring and mixing, and then mixing until the color of the solution is uniform by using a three-roller grinder;
(4) And (3) placing the mixed solution obtained in the step (3) in a vacuum drying oven to remove bubbles, and casting and curing by adopting curing procedures of 80 ℃/1h, 120 ℃/2h, 150 ℃/2h and 180 ℃/2h to obtain the thermosetting resin composition board for the copper-clad plate.
The dielectric properties of the sheets prepared in effect examples 7.1 to 7.7 and comparative examples 7.1 to 7.4 were tested according to the present invention, and the results are shown in Table 4,
TABLE 4 Table 4
From the above table, the following points can be seen:
(1) As compared with comparative example 7.1, the dielectric constant and dielectric dissipation factor were significantly reduced with the increase in dicyclopentadiene content in examples 7.1 to 5, indicating that the introduction of a dicyclopentadiene nonpolar alicyclic chain structure can improve the dielectric properties of the epoxy resin.
(2) The significant increase in initial decomposition temperature (Td 5%) in example 7.3 compared to comparative example 7.3, demonstrated that the use of a dual cure system in dicyclopentadiene/epoxy resin composites can fully cure and crosslink both resins, respectively, forming an interpenetrating polymer network structure, thereby imparting good heat resistance thereto; (comparative example 7.3, in which no catalyst was added, dicyclopentadiene was only present in the form of a monomer in the composition and was not crosslinked and cured).
(3) From examples 7.3, 7.6 and 7.7, it can be seen that polydicyclopentadiene/epoxy resin composites with reduced dielectric properties can be prepared using different epoxy curing agents.
(4) The use of the ruthenium carbene catalyst composition in examples 7.1 to 7.7 also enables dicyclopentadiene to be sufficiently cured and co-crosslinked with an epoxy resin to obtain a composite excellent in performance, as compared with comparative example 7.4.
Effect example 8: preparation of polydicyclopentadiene polymers
Effect examples 8 to 10, the actual amounts of the components in the liquid B = (sum of parts by weight of liquid A)/(mass ratio of liquid A to liquid B) (sum of parts by weight of liquid B) ]
Effect example 8.1:
the catalyst composition prepared by the invention has the same formula as in example 8, and the components of the resin are subjected to RIM reaction and injection molding to prepare the polydicyclopentadiene polymer.
The weight portions of the raw materials of each component are as follows:
| dicyclopentadiene monomer | 99.95 parts |
| Catalyst composition | 0.05 part |
| Comonomer(s): ethylene | 10 parts of |
| Anti-aging agent: tinuvin B75 | 5 parts of |
The preparation process of the polydicyclopentadiene polymer comprises the following steps:
1. preparation of A solution: according to the formula design scheme, the dicyclopentadiene monomer is weighed to form the solution A.
2. Preparation of liquid B: and weighing and mixing the catalyst composition, the comonomer and the anti-aging agent to form the solution B.
3. And (3) introducing a storage system: after the components are fully mixed by uniform stirring, the liquid A and the liquid B are respectively led into a two-component storage tank of RIM equipment for standby.
4. Injection molding: and (3) running RIM glue injection equipment, and carrying out online mixing injection of A, B feed liquid into a mold to complete reaction injection molding, so as to obtain the polydicyclopentadiene composite material.
5. Curing and demolding: and after the heating and curing of the die are finished, demolding and taking materials to finish the preparation of the polymer product.
The mass ratio of the solution A to the solution B is about 9:1, RIM equipment is adopted for reaction injection molding, the glue injection speed is 500ml/min, the glue injection pressure is 6bar, the mold is subjected to heat preservation at 80 ℃ for 2h for curing molding after resin mold filling, and the test is completed after demolding and part taking. The sample was cut into boards, and the specific test results are shown in Table 5.
Effect example 8.2:
the catalyst composition prepared by the invention has the same formula as in example 8, and the polydicyclopentadiene polymer is prepared by RIM reaction injection molding, and the resin system formula used by the catalyst composition has the same effect as in example 8.1. A, B feed liquid is evenly mixed and then is respectively placed in a dual-component storage tank of RIM equipment for storage for 6 months under natural conditions, and then a RIM technology is adopted to prepare a composite material product, and technological process parameters are the same as those of example 1. The sample was cut into boards, and the specific test results are shown in Table 5.
Effect example 8.3:
the catalyst composition prepared by the invention has the same formula as that of the example 10, and is prepared into polydicyclopentadiene polymer through RIM reaction injection molding,
The weight portions of the raw materials of each component are as follows:
| dicyclopentadiene monomer | 80 parts of |
| Catalyst composition | 20 parts of |
| Comonomer(s): methyl-5-norbornene-2, 3-dicarboxylic anhydride | 3 parts of |
| Functional filler: glass fiber | 5 parts of |
| Auxiliary agent: silane coupling agent A172 | 2 parts of |
| Auxiliary agent: toner powder | 2 parts of |
The preparation process of the polydicyclopentadiene polymer comprises the following steps:
1. preparation of A solution: according to the formula design scheme, weighing dicyclopentadiene monomer and functional filler glass fiber to form solution A, and stirring and mixing;
2. preparation of liquid B: weighing and mixing the catalyst composition, the comonomer and the auxiliary agent to form a solution B;
3. and (3) introducing a storage system: after the components are fully mixed by uniform stirring, respectively introducing the liquid A and the liquid B into a two-component storage tank of RIM equipment for standby;
4. injection molding: and (3) running RIM glue injection equipment, and carrying out online mixing injection of A, B feed liquid into a mold to complete reaction injection molding, so as to obtain the polydicyclopentadiene composite material.
5. Curing and demolding: and after the heating and curing of the die are finished, demolding and taking materials to finish the preparation of the composite material product.
And (3) carrying out reaction injection molding by using RIM equipment, wherein the mass ratio of the solution A to the solution B is about 5:1, the glue injection speed is 2L/min, the glue injection pressure is 15bar, the temperature of the mold is kept at 80 ℃ for 2h after the resin is filled, and the mold is removed and the test is completed. The sample was cut into boards, and the specific test results are shown in Table 5.
Effect example 8.4:
with the catalyst composition prepared in example 4, the components of the resin formulation were uniformly mixed and injection molded by RIM reaction to prepare polydicyclopentadiene polymer.
The weight portions of the raw materials of each component are as follows:
| dicyclopentadiene monomer | 65 parts of |
| Catalyst composition | 35 parts of |
The preparation process of the polydicyclopentadiene polymer comprises the following steps:
1. preparation of A solution: according to the formula design scheme, the dicyclopentadiene monomer is weighed to form the solution A.
2. Preparation of liquid B: the catalyst composition is weighed and mixed to form liquid B.
3. And (3) introducing a storage system: after being evenly stirred and fully mixed, the solution A and the solution B are respectively led into a two-component storage tank of RIM equipment for standby.
4. Injection molding: and (3) running RIM glue injection equipment, and carrying out online mixing injection of A, B feed liquid into a mold to complete reaction injection molding, so as to obtain the polydicyclopentadiene composite material.
5. Curing and demolding: and after the heating and curing of the die are finished, demolding and taking materials to finish the preparation of the polymer product.
The mass ratio of the solution A to the solution B is about 2:1, RIM equipment is adopted for reaction injection molding, the glue injection speed is 200ml/min, the glue injection pressure is 2bar, the mold is subjected to heat preservation at 80 ℃ for 2h for curing molding after resin mold filling, and the test is completed after demolding and part taking. The sample was cut into boards, and the specific test results are shown in Table 5.
Effect example 8.5:
the catalyst composition and the preparation process of the polydicyclopentadiene polymer are the same as those of the effect example 8.4; the resin is characterized in that the weight parts of raw materials of each component in the resin formula are as follows, wherein dicyclopentadiene monomer, functional filler and auxiliary agent are used as solution A, and the comonomer and the catalyst composition are mixed to form solution B, and the mass ratio of the solution A to the solution B is about 3:1. The sample was cut into boards, and the specific test results are shown in Table 5.
| Dicyclopentadiene monomer | 75 parts of |
| Functional filler: graphite powder | 5 parts of |
| Auxiliary agent: polymerization regulator (triphenylphosphine) | 10 parts of |
| Catalyst composition | 25 parts of |
| Comonomer(s): methyl-5-norbornene-2, 3-dicarboxylic anhydride | 30 parts of |
Comparative example 8.1:
commercialized Grubbs 2 nd Dissolving the catalyst in toluene to obtain commercial Grubbs 2 nd Catalyst composition (mass ratio of commercial Grubbs 2 nd Catalyst: toluene=1: 10 The polydicyclopentadiene polymer is prepared by single-component RIM reaction injection molding.
The weight portions of the raw materials of each component are as follows:
| dicyclopentadiene monomer | 99.8 parts of |
| Commercial Grubbs 2nd catalyst compositions | 0.2 part |
| Comonomer(s): 5-norbornene-2-carboxylic acid tert-butyl ester | 20 parts of |
| Functional filler: glass fiber | 5 parts of |
| Auxiliary agent: anti-aging agent Tinuvin B75 | 3 parts of |
In the reaction forming process of the formula, dicyclopentadiene monomer and commercial Grubbs 2 nd The catalyst composition, the comonomer, the auxiliary agent and the functional filler glass fiber are uniformly mixed, RIM equipment is adopted for reaction injection molding, the glue injection speed is 200ml/min, the glue injection pressure is 20bar, the mold is subjected to heat preservation at 100 ℃ for 30min for curing molding after resin mold filling, and the test is completed after demolding and part taking. The sample was cut into boards, and the specific test results are shown in Table 5.
Comparative example 8.2:
the polydicyclopentadiene polymer is prepared by adopting a commercial tungsten molybdenum metal carbene catalytic system and adopting a two-component RIM reaction injection molding method.
The weight portions of the raw materials of each component are as follows:
the preparation process of the polydicyclopentadiene polymer comprises the following steps:
1. preparation of A solution: according to the formula design scheme, 49.8 parts of dicyclopentadiene monomer and 0.18 part of molybdenum catalyst are weighed to form solution A.
2. Preparation of liquid B: according to the formula design scheme, 50 parts of dicyclopentadiene monomer and 0.02 part of diethyl aluminum chloride are weighed to form liquid B.
3. And (3) introducing a storage system: after being evenly stirred and fully mixed, the solution A and the solution B are respectively led into a two-component storage tank of RIM equipment for standby
The mass ratio of the solution A to the solution B is about 1:1, RIM equipment is adopted for reaction injection molding, the glue injection speed is 2L/min, the glue injection pressure is 3bar, the mold is subjected to heat preservation at 120 ℃ for 10min for curing molding after resin mold filling, and the test is completed after demolding and part taking. The sample was cut into boards, and the specific test results are shown in Table 5.
TABLE 5
| Sequence number | Tensile Strength (MPa) | Tensile modulus (MPa) | Elongation at break (%) |
| Effect example 8.1 | 56 | 1952 | 6.17 |
| Effect example 8.2 | 51 | 1937 | 5.65 |
| Effect example 8.3 | 65 | 5124 | 4.5 |
| Effect example 8.4 | 45 | 1861 | 5.13 |
| Effect example 8.5 | 58 | 2073 | 4.8 |
| Comparative example 8.1 | 42 | 4527 | 3.15 |
| Comparative example 8.2 | 38 | 1692.1 | 8.41 |
Compared with the effect example 8.1 and the effect example 8.2, the mechanical properties of the prepared composite material are not obviously changed after the resin composition is stored for 6 months, the effective period of the catalytic system is long, and the storage property is reliable.
Compared with the effect example 8.1 and the effect example 8.3, the composite material prepared by adding the glass fiber filler has higher strength compared with the composite material prepared by not adding the glass fiber filler, and can be used for reinforcing plastics.
Effect example 8.3 compared to comparative example 8.1, compared to commercially available Grubbs 2 nd Composite material prepared by catalyst, composite material prepared by effect example 8.3 has better mechanical property, effect example8.3, the catalyst system is stable, has long storage period, and is more suitable for adding additional components such as functional filler and the like to improve the comprehensive performance of the product.
Compared with the comparative example 8.2, the mechanical properties of the composite material prepared in the effect example 8.1 are obviously improved compared with the commercial tungsten-molybdenum metal carbene catalytic system.
Effect example 9: preparation of polydicyclopentadiene/epoxy resin composite material
Effect example 9.1:
the epoxy/polydicyclopentadiene composite material was prepared by RIM reaction injection molding using the catalyst composition prepared in example 7.
The liquid A comprises the following raw materials in parts by weight:
the liquid B comprises the following raw materials in parts by weight:
the preparation process of the epoxy/polydicyclopentadiene composite material comprises the following steps:
1. preparation of A solution: weighing dicyclopentadiene monomer and bisphenol A type epoxy resin to form solution A according to the formula design scheme;
2. preparation of liquid B: weighing and mixing the catalyst composition, the epoxy resin curing agent and the curing accelerator to form a solution B;
3. mixing the additional components: uniformly mixing functional filler, comonomer and auxiliary agent into the resin system of the solution A or the solution B according to the formula design scheme;
4. and (3) introducing a storage system: after the components are fully mixed by uniform stirring, respectively introducing the liquid A and the liquid B into a two-component storage tank of RIM equipment for standby;
5. injection molding: and (3) running RIM glue injection equipment, and carrying out online mixing injection of A, B feed liquid into a mold to complete reaction injection molding, so as to obtain the polydicyclopentadiene composite material.
6. Curing and demolding: and after the heating and curing of the die are finished, demolding and taking materials to finish the preparation of the composite material product.
The mass ratio of the solution A to the solution B is about 3:2, RIM equipment is adopted for reaction injection molding, the glue injection speed is 500ml/min, the glue injection pressure is 6bar, the mold is subjected to heat preservation at 80 ℃ for 2h for curing molding after resin mold filling, and the test is completed after demolding and part taking. The sample was cut into plates and the specific test results are shown in Table 6.
Effect example 9.2:
the epoxy/polydicyclopentadiene composite material was prepared by RIM reaction injection molding using the catalyst composition prepared in example 4.
The liquid A comprises the following raw materials in parts by weight:
the weight percentages of the raw materials of the components in the solution B are as follows, the sum of the weight percentages of the catalyst composition, the curing agent and the curing accelerator is 100%, and the weight percentages of the other components are the weight percentages of the components accounting for the total weight of the catalyst composition, the curing agent and the curing accelerator:
the RIM molding process is the same as that of effect example 9.1. The mass ratio of the solution A to the solution B is about 3:1, RIM equipment is adopted for reaction injection molding, the glue injection speed is 2L/min, the glue injection pressure is 15bar, the mold is subjected to heat preservation at 80 ℃ for 2h for curing molding after resin mold filling, and the demolding and the piece taking are finished. The sample was cut into plates and the specific test results are shown in Table 6.
Effect example 9.3:
the epoxy/polydicyclopentadiene composite material was prepared by RIM reaction injection molding using the catalyst composition prepared in example 9.
The liquid A comprises the following raw materials in parts by weight:
| dicyclopentadiene monomer | 95 parts of |
| Bisphenol A type epoxy resin | 5 parts of |
| Functional filler: carbon fiber powder | 5 parts of |
The liquid B comprises the following raw materials in parts by weight:
The RIM molding process is the same as that of effect example 9.1. And (3) performing reaction injection molding by using RIM equipment, wherein the mass ratio of the solution A to the solution B is about 8:1, the glue injection speed is 5L/min, the glue injection pressure is 10bar, the temperature of the mold is kept at 80 ℃ for 2h after the resin is filled, and the mold is removed to finish the test. The sample was cut into plates and the specific test results are shown in Table 6.
Effect example 9.4:
the epoxy/polydicyclopentadiene composite material was prepared by RIM reaction injection molding using the catalyst composition prepared in example 8.
The liquid A comprises the following raw materials in parts by weight:
| dicyclopentadiene monomer | 80 parts of |
| Bisphenol A type epoxy resin | 20 parts of |
The liquid B comprises the following raw materials in parts by weight:
the RIM molding process was the same as in example 9.1. The mass ratio of the solution A to the solution B is about 15:1, RIM equipment is adopted for reaction injection molding, the glue injection speed is 30L/min, the glue injection pressure is 25bar, the mold is subjected to heat preservation at 80 ℃ for 2h for curing molding after resin mold filling, and the demolding and the piece taking are finished. The sample was cut into plates and the specific test results are shown in Table 6.
Comparative example 9.1:
commercialized Grubbs 2 nd Dissolving the catalyst in toluene to obtain commercial Grubbs 2 nd Catalyst composition (mass ratio of commercial Grubbs 2 nd Catalyst: toluene=1: 10 And (3) preparing the polydicyclopentadiene composite material by single-component RIM reaction injection molding.
The weight portions of the raw materials of each component are as follows:
in the reaction forming process of the formula, dicyclopentadiene monomer and commercial Grubbs 2 nd Uniformly mixing the catalyst composition, the comonomer, the auxiliary agent and the functional filler glass fiber, adopting RIM equipment to react, injecting and molding, wherein the glue injection speed is 200mL/min, the glue injection pressure is 20bar, and the resin is cured into the glass fiber through heat preservation for 30min at 100 ℃ after mold fillingAnd (5) demolding and taking out the workpiece to finish the test. The sample was cut into plates and the specific test results are shown in Table 6.
Comparative example 9.2:
commercialized Grubbs 2 nd Dissolving the catalyst in toluene to obtain commercial Grubbs 2 nd Catalyst composition (mass ratio of commercial Grubbs 2 nd Catalyst: toluene=1: 10 And (3) preparing the polydicyclopentadiene composite material by single-component RIM reaction injection molding.
The weight portions of the raw materials of each component are as follows:
| dicyclopentadiene monomer | 88.5 parts |
| Commercial Grubbs 2nd catalyst compositions | 0.5 part |
| Comonomer(s): norbornene (norbornene) | 8 parts of |
| Functional filler: glass fiber | 3 parts of |
In the reaction forming process of the formula, dicyclopentadiene monomer and commercial Grubbs 2 nd The catalyst, the comonomer and the functional filler glass fiber are uniformly mixed, RIM equipment is adopted for reaction injection molding, the glue injection speed is 2L/min, the glue injection pressure is 3bar, the mold is subjected to heat preservation at 120 ℃ for 10min for curing molding after resin mold filling, and the test is completed after demolding and part taking. The sample was cut into plates and the specific test results are shown in Table 6.
TABLE 6
| Sequence number | Tensile Strength (MPa) | Tensile modulus (MPa) | Elongation at break (%) |
| Effect example 9.1 | 65 | 5812 | 2.95 |
| Effect example 9.2 | 58 | 3156 | 4.85 |
| Effect example 9.3 | 62 | 4936 | 3.51 |
| Effect example 9.4 | 53 | 2074 | 3.97 |
| Comparative example 9.1 | 42 | 4527 | 3.15 |
| Comparative example 9.2 | 38 | 1692.1 | 8.41 |
Comparing effect example 9.1 with effect example 9.2, it is known that adding glass fiber function filler into the compound system obviously improves the strength and elastic modulus of the product and has obvious fiber reinforcing effect.
Effect example 9.1 compared with comparative example 9.1, it is clear that the compounded system is relative to commercial Grubbs 2 nd The composite material prepared by the catalyst has higher strength.
Compared with the commercial polydicyclopentadiene product, the mechanical properties, especially the elasticity modulus, of the composite material prepared in the effect example 9.2 are obviously improved, and the deformation resistance of the product is obviously improved in comparison with the comparative example 9.2.
Effect example 9.3 demonstrates that the addition of carbon fiber can significantly improve the elastic modulus and strength of the material.
Effect example 9.4 is compared with effect example 9.1 and comparative example 9.1, and it is known that the addition of the epoxy resin system can improve the strength and the deformation resistance of the polydicyclopentadiene resin system to some extent.
Effect example 10: preparation of polydicyclopentadiene/epoxy resin based fiber reinforced composite material
In effect example 10, the actual amount of the fiber reinforcement = (mass fraction of the fiber reinforcement) = (sum of parts by weight of the liquid a and the liquid B)
Effect example 10.1:
the catalyst composition prepared in example 5 was used to prepare a continuous glass fiber reinforced polydicyclopentadiene/epoxy resin based composite material by an RTM process.
The liquid A comprises the following raw materials in parts by weight:
| dicyclopentadiene monomer | 20 parts of |
| Bisphenol A type epoxy resin | 80 parts of |
| Functional filler: graphite powder | 5 parts of |
The liquid B comprises the following raw materials in parts by weight:
| catalyst composition | 0.33 |
| Epoxy curing agent: methyltetrahydrophthalic anhydride | 97.79 parts of |
| Epoxy curing accelerator: 2-methylimidazole | 1.88 parts of |
| Comonomer(s): methyl-5-norbornene-2, 3-dicarboxylic anhydride | 15 parts of |
| Auxiliary agent: polymerization regulator triphenylphosphine | 0.6 part |
The preparation process of the polydicyclopentadiene/epoxy resin system comprises the following steps:
1. preparation of A solution: weighing dicyclopentadiene monomer and bisphenol A type epoxy resin to form solution A according to the formula design scheme;
2. preparation of liquid B: weighing and mixing the liquefying catalyst, the epoxy resin curing agent and the curing accelerator to form a solution B;
3. mixing the additional components: uniformly mixing functional filler, comonomer and auxiliary agent into the resin system of the solution A or the solution B according to the formula design scheme;
4. the forming process comprises the following steps: and (3) uniformly stirring to fully mix the components, and mixing the solution A and the solution B to prepare the polydicyclopentadiene/epoxy resin system.
The mass ratio of the solution A to the solution B is about 10:7, uniformly mixing by adopting a mechanical stirring mode, wherein the rotating speed is 300-500 r/min, and the stirring time is 20-30 min.
And preparing the fiber reinforced resin matrix composite with the fiber mass fraction of 50% by taking the continuous glass fiber as a reinforcement. The preparation process of the composite material comprises the following steps:
1. and (3) mold treatment: cleaning the RTM mould, and coating hole sealing agent and release agent to facilitate release and improve the apparent effect of the product;
2. continuous glass fiber reinforcement preparation: cutting, layering and reinforcing body shaping of continuous glass fiber according to the design requirement of the product, and placing the cut and trimmed glass fiber in an RTM (resin transfer molding) die cavity; wherein the mass of the continuous glass fiber accounts for 50% of the mass of the composite material;
3. and (3) die assembly and glue injection: closing the mould, ensuring good sealing, injecting the prepared epoxy/polydicyclopentadiene resin glue solution into a mould cavity by adopting an RTM glue injection machine, heating for solidification, demoulding and taking a part, and thus completing the preparation of the composite material.
The continuous glass fiber twill fabric used in this example has an areal density of 250g/m 2 The design thickness of the plate is 2mm, the warp direction of the fabric is recorded as 0 degree direction, and the composite plate layer is designed as [0/90 ]] 5 A total of 10 balanced symmetrical layering. The fiber reinforcement is prepared with reference to the material and ply design. The complex The glue injection pressure in the forming process of the composite material RTM technology is 6bar, and the system curing system is 80 ℃ for 5 hours. The sample was cut into plates and the specific test results are shown in Table 7.
Effect example 10.2:
the catalyst composition prepared in example 9 was used to prepare a carbon fiber reinforced polydicyclopentadiene/epoxy resin composite material by an RTM process.
The liquid A comprises the following raw materials in parts by weight:
| dicyclopentadiene monomer | 40 parts of |
| Bisphenol A type epoxy resin | 60 parts of |
| Functional filler: silica dioxide | 10 parts of |
The liquid B comprises the following raw materials in parts by weight:
| catalyst composition | 1.05 parts by weight |
| Epoxy curing agent: methyl hexahydrophthalic anhydride | 94.21 parts |
| Epoxy curingAnd (3) an accelerator: DMP-30 | 4.74 parts of |
| Comonomer(s): 5-norbornene-2-carboxylic acid tert-butyl ester | 10 parts of |
| Auxiliary agent: anti-aging agent (Tinuvin 571) | 0.98 part |
The preparation process of the polydicyclopentadiene/epoxy resin system is the same as that of effect example 10.1. The mass ratio of the solution A to the solution B is about 5:3, uniformly mixing by adopting a mechanical stirring mode, wherein the rotating speed is 300-500 r/min, and the stirring time is 20-30 min.
The preparation process of the carbon fiber reinforced polydicyclopentadiene/epoxy resin composite material has the same effect as that of example 10.1. The difference is that the fiber reinforcement in this example is continuous carbon fiber, the surface density of unidirectional fabric is 160g/m 2 The design thickness of the plate is 1mm, the direction of the unidirectional fabric along the fiber direction is recorded as 0 DEG, and the composite plate layer is designed as [0/90/0 ]] 3 A total of 9 balanced and symmetrical layers are laid. The fiber reinforcement is prepared with reference to the material and ply design. In this embodiment, the mass of the continuous carbon fiber accounts for 40% of the mass of the composite material; the glue injection pressure in the RTM process of the composite material is 3bar, and the curing system of the system is 120 ℃/2h. The sample was cut into plates and the specific test results are shown in Table 7.
Effect example 10.3:
the catalyst composition prepared in example 6 was used to prepare a continuous glass fiber reinforced polydicyclopentadiene/epoxy resin composite material by a vacuum flow guide process.
The liquid A comprises the following raw materials in parts by weight:
| dicyclopentadiene monomer | 50 parts of |
| Bisphenol A type epoxy resin | 50 parts of |
| Auxiliary agent: coupling agent KH560 | 0.65 part |
| Auxiliary agent: anti-aging agent (2, 6-di-tert-butyl-4-methylphenol) | 1.14 parts |
The liquid B comprises the following raw materials in parts by weight:
the preparation process of the polydicyclopentadiene/epoxy resin system is the same as that of effect example 10.1. The mass ratio of the solution A to the solution B is about 2:1, uniformly mixing by adopting a mechanical stirring mode, wherein the rotating speed is 300-500 r/min, and the stirring time is 20-30 min.
And preparing the fiber reinforced resin matrix composite with the mass fraction of the fiber being 60% by taking the continuous glass fiber as a reinforcement. The preparation process of the composite material comprises the following steps:
1. preparing a preform: cutting, layering and shaping and trimming the fiber fabric for later use according to the layering design scheme;
2. and (3) bag making: the vacuum bag used in the vacuum diversion forming process is prepared, and the detection air tightness is good;
3. and (3) glue injection: under the action of vacuum negative pressure, pouring of resin glue solution is completed;
4. and (3) curing and forming: and heating the pre-formed blank after glue injection to solidify the pre-formed blank, and demolding and taking out the piece.
In this effect example, the type of continuous glass fiber used and the ply design were the same as in effect example 10.1. In the vacuum diversion process, the vacuum degree of the vacuum bag is generally more than 920mbar; when the air tightness is detected, the requirement that the pressure drop is less than 50mbar in 5min is met, and the curing system of the product is 120 ℃/2h. The sample was cut into plates and the specific test results are shown in Table 7.
Effect example 10.4:
the catalyst composition prepared in example 5 was used to prepare a continuous carbon fiber reinforced polydicyclopentadiene/epoxy resin composite material by a vacuum flow guide process.
The liquid A comprises the following raw materials in parts by weight:
| dicyclopentadiene monomer | 60 parts of |
| Bisphenol A type epoxy resin | 40 parts of |
| Functional filler: graphite powder | 5 parts of |
| Auxiliary agent: polymerization regulator triethyl phosphite | 0.02 part |
| Auxiliary agent: coupling agent KH560 | 0.65 part |
The liquid B comprises the following raw materials in parts by weight:
| catalyst composition | 1.85 parts |
| Epoxy curing agent: methyl hexahydrophthalic anhydride | 60.83 parts |
| Epoxy curing agent: methyl-5-norbornene-2, 3-dicarboxylic anhydride | 35.58 parts |
| Epoxy curing accelerator: 2-ethylimidazole | 1.73 parts |
| Comonomer(s): 5-norbornene-2-carboxylic acid tert-butyl ester | 5 parts of |
The preparation process of the polydicyclopentadiene/epoxy resin system has the same effect as that of example 10.1. The mass ratio of the solution A to the solution B is about 5:2, uniformly mixing by adopting a mechanical stirring mode, wherein the rotating speed is 300-500 r/min, and the stirring time is 20-30 min.
The preparation process of the continuous carbon fiber reinforced polydicyclopentadiene/epoxy resin composite material has the same effect as that of example 10.3. The difference is that the fiber reinforcement in this example is continuous carbon fiber, the areal density of the unidirectional fabric is 160g/m 2 The design thickness of the plate is 1mm, the direction of the unidirectional fabric along the fiber direction is recorded as 0 DEG, and the composite plate layer is designed as [0/90/0 ]] 3 A total of 9 balanced and symmetrical layers are laid. With reference to the material and the layer arrangementThe scheme is completed to prepare the fiber reinforcement. In this embodiment, the mass of the continuous carbon fiber accounts for 70% of the mass of the composite material; the specific test results of the composite materials are shown in Table 7.
Effect example 10.5:
the catalyst composition prepared in example 10 was used to prepare a continuous glass fiber reinforced polydicyclopentadiene/epoxy resin composite material by a wet molding process.
The liquid A comprises the following raw materials in parts by weight:
| dicyclopentadiene monomer | 80 parts of |
| Bisphenol A type epoxy resin | 20 parts of |
| Comonomer(s): methyl-5-norbornene-2, 3-dicarboxylic anhydride | 5 parts of |
| Comonomer(s): 5-norbornene-2-carboxylic acid tert-butyl ester | 5 parts of |
| Functional filler: graphite powder | 5 parts of |
The liquid B comprises the following raw materials in parts by weight:
| catalyst composition | 6.25 parts of |
| Epoxy curing agent: methyltetrahydrophthalic anhydride | 62.83 parts |
| Epoxy curing agent: methyl-5-norbornene-2, 3-dicarboxylic anhydride | 25.67 parts |
| Epoxy curing accelerator: DMP-30 | 5.24 parts |
| Auxiliary agent: anti-aging agent BASF168 | 1.14 parts |
| Auxiliary agent: coupling agent KH560 | 0.65 part |
| Auxiliary agent: anti-aging agent 2-hydroxy-4-methoxybenzophenone | 0.985 part |
The preparation process of the polydicyclopentadiene/epoxy resin system has the same effect as that of example 10.1. The mass ratio of the solution A to the solution B is about 5:2, uniformly mixing by adopting a mechanical stirring mode, wherein the rotating speed is 300-500 r/min, and the stirring time is 20-30 min.
And preparing the fiber reinforced resin matrix composite with the mass fraction of the fiber being 75% by taking the continuous glass fiber as a reinforcement. The composite material is prepared by adopting a wet mould pressing process, and the forming process comprises the following steps:
1. Preparing a preform: cutting, layering and shaping and trimming the fiber fabric for later use according to the layering design scheme;
2. resin coating: uniformly coating the resin glue solution on a preform in a die cavity;
3. and (5) die assembly, pressing and forming: and (3) closing the die by a press, controlling the pressing process, and demoulding and taking the workpiece after heating, solidifying and forming.
In this effect example, the type of continuous glass fiber used and the ply design were the same as in effect example 10.1. The pre-pressure in the wet molding process is 0.2MPa, the pressing pressure is 1.5MPa, and the curing system of the resin system is 120 ℃/20min; the sample was cut into plates and the specific test results are shown in Table 7.
Effect example 10.6:
the catalyst composition prepared in example 6 is adopted to prepare a continuous glass fiber reinforced polydicyclopentadiene/epoxy resin composite material through a vacuum diversion process, and the resin system formula used by the composite material is the same as that of effect example 10.3.
A, B liquid and accessory components are mixed and stored at room temperature for 6 months, and then a vacuum diversion process is adopted to prepare a composite material product, and the technological process parameters are the same as those of effect example 10.3. The sample was cut into plates and the specific test results are shown in Table 7.
Comparative example 10.1:
the catalyst composition prepared in example 6 was used to prepare polydicyclopentadiene/epoxy resin composite material by RIM process.
The liquid A comprises the following raw materials in parts by weight:
| dicyclopentadiene monomer | 50 parts of |
| Bisphenol A type epoxy resin | 50 parts of |
The liquid B comprises the following raw materials in parts by weight:
| catalyst composition | 1.13 parts |
| Epoxy curing agent: methyl-5-norbornene-2, 3-dicarboxylic anhydride | 94.39 parts |
| Epoxy curing accelerator: DMP-30 | 4.49 parts of |
| Comonomer(s): methyl-5-norbornene-2, 3-dicarboxylic anhydride | 5 parts of |
| Auxiliary agent: coupling agent KH560 | 0.65 part |
| Auxiliary agent: anti-aging agent (2, 6-di-tert-butyl-4-methylphenol) | 1.14 parts |
The preparation process of the polydicyclopentadiene/epoxy resin composite material comprises the following steps:
1. preparation of A solution: according to the formula design scheme, weighing dicyclopentadiene monomer, functional filler and auxiliary agent to form solution A;
2. preparation of liquid B: weighing and mixing the liquefying catalyst and the comonomer to form a solution B;
3. mixing the additional components: uniformly mixing a comonomer and an auxiliary agent into the resin system of the liquid A or the liquid B according to the formula design scheme;
4. and (3) introducing a storage system: after the components are fully mixed by uniform stirring, respectively introducing the liquid A and the liquid B into a two-component storage tank of RIM equipment for standby;
5. injection molding: and (3) running RIM glue injection equipment, and carrying out online mixing injection of A, B feed liquid into a mold to complete reaction injection molding, so as to obtain the polydicyclopentadiene composite material.
6. Curing and demolding: and after the heating and curing of the die are finished, demolding and taking materials to finish the preparation of the composite material product.
The mass ratio of the solution A to the solution B is about 2:1, RIM equipment is adopted for reaction injection molding, the glue injection speed is 1500ml/min, the glue injection pressure is 6bar, the mold is subjected to heat preservation at 80 ℃ for 2h for curing molding after resin mold filling, and the test is completed after demolding and part taking. The sample was cut into plates and the specific test results are shown in Table 7.
Comparative example 10.2:
the catalyst composition prepared in example 6 was used to prepare polydicyclopentadiene material by RIM reaction injection molding.
The weight portions of the raw materials of each component are as follows:
| dicyclopentadiene monomer | 99.7 parts |
| Catalyst composition | 0.3 part |
| Comonomer(s): methyl-5-norbornene-2, 3-dicarboxylic anhydride | 15 parts of |
| Functional filler: graphite powder | 5 parts of |
| Auxiliary agent: aggregationTriphenylphosphine as a co-regulator | 3.2 parts of |
Resin system and composite RIM molding process, as in comparative example 10.1; the difference is that the solution A only has dicyclopentadiene monomer, and the mass ratio of the solution A to the solution B is about 5:1-7:1. The specific test results are shown in Table 7.
Comparative example 10.3:
using the catalyst composition prepared in example 6 of the present invention, a continuous glass fiber reinforced polydicyclopentadiene was prepared by RTM process using the resin system formulation similar to comparative example 10.2. The RTM technology is adopted to prepare the composite material product, and the molding method and the technological parameters are the same as those of effect example 10.1. The sample was cut into plates and the specific test results are shown in Table 7.
Comparative example 10.4:
the existing commercially available ruthenium carbene olefin metathesis catalysts can only be stored in a solid state at low temperatures for a long period of time. When in use, the catalyst can only be dissolved in common solvents to prepare a solution with a certain concentration, and the catalyst in the solution state is easy to decompose, so that the catalyst is deactivated. Therefore, ruthenium carbene olefin metathesis catalysts can only be formulated on-the-fly in olefin polymerization processes.
The commercial ruthenium carbene catalytic system is adopted, and the continuous glass fiber reinforced polydicyclopentadiene/epoxy resin composite material is prepared through a vacuum diversion process.
The liquid A comprises the following raw materials in parts by weight:
| dicyclopentadiene monomer | 50 parts of |
| Bisphenol A type epoxy resin | 50 parts of |
The liquid B comprises the following raw materials in parts by weight:
| epoxy curing agent: methyl-5-norbornene-2, 3-dicarboxylic anhydride | 95.46 parts |
| Epoxy curing accelerator DMP-30 | 4.54 parts |
| Comonomer(s): methyl-5-norbornene-2, 3-dicarboxylic anhydride | 5 parts of |
| Auxiliary agent: coupling agent KH560 | 0.65 part |
| Auxiliary agent: anti-aging agent (2, 6-di-tert-butyl-4-methylphenol) | 1.14 parts |
The liquid C comprises the following raw materials in parts by weight:
| commercial Grubbs 2nd catalysts | 6.5 parts of |
| Solvent: toluene (toluene) | 93.5 parts |
The preparation process of the polydicyclopentadiene/epoxy resin system comprises the following steps:
1. Preparation of A solution: weighing dicyclopentadiene monomer and bisphenol A type epoxy resin to form solution A according to the formula design scheme;
2. preparation of liquid B: weighing and mixing an epoxy resin curing agent and a curing accelerator to form a solution B;
3. mixing the additional components: uniformly mixing functional filler, comonomer and auxiliary agent into the resin system of the solution A or the solution B according to the formula design scheme;
4. and (3) preparation of a liquid C: grubbs 2 nd The catalyst is fully dissolved in toluene solution to form solution C.
5. The forming process comprises the following steps: firstly, mixing the solution A and the solution B, then adding the solution C, and uniformly mixing to obtain the resin system for the composite material.
The mass ratio of the solution A to the solution B to the solution C is about 200:100:1, uniformly mixing by adopting a mechanical stirring mode, wherein the rotating speed is 300-500 r/min, and the stirring time is 20-30 min.
And preparing the fiber reinforced resin matrix composite with the mass fraction of the fiber being 60% by taking the continuous glass fiber as a reinforcement. The preparation process of the composite material is the same as that of effect example 10.3. The specific test results are shown in Table 7.
TABLE 7
Claims (22)
1. A resin composition characterized by comprising, in parts by weight: 5-98 parts of dicyclopentadiene, 3-95 parts of epoxy resin, 0.5-65 parts of epoxy resin curing agent, 0.5-25 parts of curing accelerator and 0.01-15 parts of catalyst composition;
The catalyst composition comprises a ruthenium carbene compound or a salt thereof shown in a formula I, and chlorinated paraffin; the chlorine content of the chlorinated paraffin is 5-65%, and the chlorine content is the percentage of the mass of chlorine atoms in the chlorinated paraffin;
wherein R is 1 And R is 2 Independently C 4 -C 18 Alkyl or by R 1-1 Substituted C 4 -C 18 An alkyl group;
R 1-1 independently C 6 -C 10 Aryl groups.
2. The resin composition according to claim 1,
the chlorine content of the chlorinated paraffin is 5-60%, and the chlorine content is the percentage of the mass of chlorine atoms in the chlorinated paraffin;
and/or the mass concentration of the ruthenium carbene compound shown in the formula I or the salt thereof in the chlorinated paraffin is 0.08mol/L to 0.7mol/L;
and/or, the C 4 -C 18 Alkyl or by R 1-1 Substituted C 4 -C 18 C in alkyl 4 -C 18 Alkyl is independently C 4 -C 10 An alkyl group;
and/or, the quilt R 1-1 Substituted C 4 -C 18 In the alkyl group, R 1-1 Is 1, 2 or 3, and when it is 2 or 3, it is the same or different;
and/or, the C 6 -C 10 Aryl is phenyl or naphthyl;
and/or R 1 And R is 2 The same or different;
and/or, the purity of the dicyclopentadiene is more than or equal to 90%;
and/or, the dosage of dicyclopentadiene is 10-95 parts by weight;
And/or, the epoxy resin is used in an amount of 5-90 parts by weight;
and/or, the epoxy resin curing agent is used in an amount of 1-60 parts by weight;
and/or, the dosage of the curing accelerator is 1-10 parts by weight;
and/or, the catalyst composition is used in an amount of 0.03-11 parts by weight;
and/or, the sum of the volume parts of the cyclopentadiene and the epoxy resin is 100 parts;
and/or the volume fraction ratio of the cyclopentadiene to the epoxy resin is 0.1:1-20:1;
and/or the epoxy resin is one or more of bisphenol A epoxy resin, bisphenol F epoxy resin, glycidyl ether type epoxy resin, glycidyl ester type epoxy resin and phenolic epoxy resin;
and/or the epoxy value of the epoxy resin is 0.48-0.54;
and/or the epoxy resin curing agent is one or more of methyl tetrahydrophthalic anhydride, methyl hexahydrophthalic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, modified methyl tetrahydrophthalic anhydride, modified methyl hexahydrophthalic anhydride, methyl-5-norbornene-2, 3-dicarboxylic anhydride and dodecyl succinic anhydride;
And/or the curing accelerator is one or more of 2,4, 6-tri (dimethylaminomethyl) phenol, dimethylaminomethyl phenol, 2-methylimidazole, 2-ethylimidazole and 2-ethyl-4-methylimidazole;
and/or the composition further comprises one or more of a comonomer, a functional filler and an auxiliary agent.
3. The resin composition according to claim 2,
the chlorine content of the chlorinated paraffin is 5%, 42%, 52% or 60%, and the chlorine content is the percentage of the mass of chlorine atoms in the chlorinated paraffin;
and/or the mass concentration of the ruthenium carbene compound shown in the formula I or the salt thereof in the chlorinated paraffin is 0.1mol/L to 0.6mol/L;
and/or, the C 4 -C 18 Alkyl or by R 1-1 Substituted C 4 -C 18 C in alkyl 4 -C 18 Alkyl is independently C 4 -C 6 An alkyl group;
and/or the purity of the dicyclopentadiene is more than or equal to 98%;
and/or, the dosage of dicyclopentadiene is 10 parts, 55 parts, 80 parts or 95 parts by weight;
and/or, the epoxy resin is used in an amount of 5 parts, 20 parts, 45 parts or 90 parts by weight;
and/or the epoxy resin curing agent is used in an amount of 1.14 parts, 3 parts, 18.76 parts or 57.93 parts by weight;
And/or the usage amount of the curing accelerator is 1.56 parts, 6.40 parts, 9.70 parts or 3 parts by weight;
and/or the catalyst composition is used in an amount of 0.03 parts, 0.57 parts, 0.67 parts or 10.94 parts by weight;
and/or, when the composition further comprises a comonomer, the comonomer is one or more of norbornene, methyl methacrylate, ethyl methacrylate, butyl methacrylate, ethylene, propylene, isoprene, styrene, butadiene, maleic anhydride, cyclopentadiene, methyl-5-norbornene-2, 3-dicarboxylic anhydride, and t-butyl 5-norbornene-2-carboxylate;
and/or, when the composition further comprises a comonomer, the comonomer is used in an amount of 0.5 to 13 parts;
and/or, when the composition further comprises a functional filler, the functional filler is one or more of carbon black, graphite powder, mica powder, montmorillonite, titanium pigment, silica, glass fiber, basalt fiber, carbon fiber, polyethylene fiber and aramid fiber;
and/or, when the composition further comprises a functional filler, the functional filler is used in an amount of 1 to 13 parts;
And/or, when the composition further comprises an auxiliary agent, the auxiliary agent is one or more of a polymerization regulator, an anti-aging agent, a coupling agent, toner, a cosolvent, a heat stabilizer, a flame retardant and a release agent.
4. The resin composition according to claim 3,
the C is 4 -C 18 Alkyl or by R 1-1 Substituted C 4 -C 18 C in alkyl 4 -C 18 Alkyl is independently C 4 Alkyl, C 5 Alkyl or C 6 An alkyl group.
5. The resin composition according to claim 4,
the C is 4 -C 18 Alkyl or by R 1-1 Substituted C 4 -C 18 C in alkyl 4 -C 18 Alkyl is independently n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl or n-hexyl.
6. The resin composition according to claim 5,
the C is 4 -C 18 Alkyl or by R 1-1 Substituted C 4 -C 18 C in alkyl 4 -C 18 Alkyl is independently n-butyl or n-hexyl.
7. The resin composition according to claim 3 to 6,
the mass concentration of the ruthenium carbene compound shown in the formula I or the salt thereof in the chlorinated paraffin is 0.1mol/L, 0.2mol/L, 0.25mol/L, 0.3mol/L, 0.35mol/L, 0.55mol/L or 0.6mol/L;
and/or the ruthenium carbene compound shown in the formula I has any structure,
And/or, when the composition further comprises a comonomer, the comonomer is one or more of ethylene, ethyl methacrylate, and tert-butyl 5-norbornene-2-carboxylate;
and/or, when the composition further comprises a comonomer, the comonomer is used in an amount of 1 to 10 parts;
and/or, when the composition further comprises a functional filler, the functional filler is one or more of glass fiber, carbon black and carbon fiber;
and/or, when the composition further comprises a functional filler, the functional filler is used in an amount of 2 to 10 parts;
and/or, when the composition further comprises an auxiliary agent, the auxiliary agent comprises a polymerization regulator, wherein the polymerization regulator is one or more of triphenylphosphine, triethyl phosphite, tributyl phosphite, ethylene glycol dimethyl ether, diphenyl ketone and isopropyl ether;
and/or, when the composition further comprises an auxiliary agent, the auxiliary agent comprises a polymerization regulator, wherein the dosage of the polymerization regulator is 0.5-3 parts by weight;
and/or, when the composition further comprises an auxiliary agent, the auxiliary agent comprises an anti-aging agent, the anti-aging agent is one or more of 2, 6-di-tert-butyl-4-methylphenol, aniline, 2-methylaniline, BASF1010, BASF1076, BASF168, tinuvin 571, tinuvin 765, tinuvin B75, tinuvin B88, 2, 4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, UV-531 and UV-770;
And/or, when the composition further comprises an auxiliary agent, the auxiliary agent comprises an anti-aging agent, and the anti-aging agent is used in an amount of 1-5 parts by weight;
and/or, when the composition further comprises an auxiliary agent, the auxiliary agent comprises a coupling agent, and the coupling agent is a silane coupling agent;
and/or, when the composition further comprises an auxiliary agent, the auxiliary agent comprises a coupling agent, wherein the coupling agent is used in an amount of 0.3-1 part by weight;
and/or, when the composition further comprises an auxiliary agent, the auxiliary agent comprises toner, and the dosage of the toner is 0.1-0.5 part by weight;
and/or, when the composition further comprises an auxiliary agent, wherein the auxiliary agent comprises a cosolvent, and the cosolvent is acetone;
and/or when the composition further comprises an auxiliary agent, the auxiliary agent comprises a cosolvent, wherein the cosolvent is used in an amount of 1-2 parts by weight.
8. The resin composition according to claim 7,
when the composition further comprises a comonomer, the comonomer is used in an amount of 1.37 parts, 5 parts or 10 parts;
and/or, when the composition further comprises a functional filler, the functional filler is used in an amount of 2.50 parts, 5 parts or 9.66 parts;
And/or, when the composition further comprises an auxiliary agent, wherein the auxiliary agent comprises a polymerization regulator, the polymerization regulator is triethyl phosphite;
and/or, when the composition further comprises an auxiliary agent, the auxiliary agent comprises a polymerization regulator, wherein the dosage of the polymerization regulator is 1 part by weight;
and/or, when the composition further comprises an auxiliary agent, the auxiliary agent comprises an anti-aging agent, the anti-aging agent is one or more of 2, 6-di-tert-butyl-4-methylphenol, 2-methylaniline, tinuvin B75 and 2-hydroxy-4-methoxybenzophenone;
and/or, when the composition further comprises an auxiliary agent, the auxiliary agent comprises an anti-aging agent, wherein the anti-aging agent is used in an amount of 2 parts by weight;
and/or, when the composition further comprises an auxiliary agent, the auxiliary agent comprises a coupling agent, wherein the coupling agent is a silane coupling agent A172;
and/or, when the composition further comprises an auxiliary agent, the auxiliary agent comprises a coupling agent, wherein the coupling agent is used in an amount of 0.64 parts by weight;
and/or, when the composition further comprises an auxiliary agent, the auxiliary agent comprises toner, and the amount of the toner is 0.34 part by weight;
And/or, when the composition further comprises an auxiliary agent, the auxiliary agent comprises a cosolvent, wherein the cosolvent is used in an amount of 1.56 parts by weight.
9. The resin composition according to claim 1 to 6,
the catalyst composition consists of a ruthenium carbene compound or a salt thereof shown in a formula I and chlorinated paraffin;
and/or, the composition is any combination of the following:
combination C1: dicyclopentadiene, epoxy resin curing agent, curing accelerator and catalyst composition;
combination C2: dicyclopentadiene, epoxy resin, an epoxy resin curing agent, a curing accelerator, a catalyst composition, a comonomer, a functional filler and toner;
combination C3: dicyclopentadiene, epoxy resin, an epoxy resin curing agent, a curing accelerator, a catalyst composition, a comonomer, a functional filler, an anti-aging agent and a coupling agent;
combination C4: dicyclopentadiene, epoxy resin curing agent, curing accelerator, catalyst composition, comonomer, functional filler, polymerization regulator and cosolvent.
10. The resin composition of claim 9, wherein the catalyst composition is any combination of:
Combination A1:
and chlorinated paraffin, wherein the chlorinated paraffin has chlorine content of 5%, 42%, 52% or 60%; />
Combination A2:
and chlorinated paraffin, wherein the chlorinated paraffin has chlorine content of 5%, 42%, 52% or 60%;
combination A3:
and chlorinated paraffin, wherein the chlorine content of the chlorinated paraffin is 52%;
combination A4:
and chlorinated paraffin, wherein the chlorine content of the chlorinated paraffin is 42%;
combination A5:
and chlorinated paraffin, wherein the chlorine content of the chlorinated paraffin is 5%;
combination A6:
and chlorinated paraffin, wherein the chlorine content of the chlorinated paraffin is 60%;
combination A7:
and chlorinated paraffin, wherein the chlorine content of the chlorinated paraffin is 52%;
combination B1:
and chlorine content of 5%Chlorinated Paraffin, tiger>
The concentration of the substances in the chlorinated paraffin was 0.1mol/L; />
Combination B2:
and chlorinated paraffin with chlorine content of 42%>
The mass concentration of the substances in the chlorinated paraffin is 0.3mol/L;
combination B3:
and chlorinated paraffin with chlorine content of 52%>
The mass concentration of the substances in the chlorinated paraffin is 0.35mol/L;
combination B4:
and chlorinated paraffin with chlorine content of 60%>
The concentration of the substances in the chlorinated paraffin was 0.6mol/L;
combination B5:
and chlorinated paraffin with chlorine content of 5% >
The concentration of the substances in the chlorinated paraffin was 0.1mol/L;
combination B6:
and chlorinated paraffin with chlorine content of 42%>
The mass concentration of the substances in the chlorinated paraffin is 0.25mol/L;
combination B7:
and chlorinated paraffin with chlorine content of 52%>
The mass concentration of the substances in the chlorinated paraffin is 0.3mol/L; />
Combination B8:
and chlorinated paraffin with chlorine content of 60%>
The concentration of the substances in the chlorinated paraffin was 0.6mol/L;
combination B9:
and chlorinated paraffin with chlorine content of 52%>
The mass concentration of the substances in the chlorinated paraffin is 0.3mol/L;
combination B10:
and chlorinated paraffin with chlorine content of 42%>
In chlorinated paraffinThe mass concentration of the substances is 0.35mol/L;
combination B11:
and chlorinated paraffin with chlorine content of 5%>
The mass concentration of the substances in the chlorinated paraffin is 0.55mol/L;
combination B12:
and chlorinated paraffin with chlorine content of 60%>
The mass concentration of the substances in the chlorinated paraffin is 0.2mol/L;
combination B13:
and chlorinated paraffin with chlorine content of 52%>
The concentration of the substances in chlorinated paraffin was 0.35mol/L.
11. The resin composition of claim 9, wherein the composition is any combination of:
combination D1: 10-95 parts of dicyclopentadiene, 5-90 parts of epoxy resin, 1-60 parts of epoxy resin curing agent, 1-10 parts of curing accelerator and 0.03-11 parts of catalyst composition;
Combination D2: 10-95 parts of dicyclopentadiene, 5-90 parts of epoxy resin, 1-60 parts of epoxy resin curing agent, 1-10 parts of curing accelerator, 0.03-11 parts of catalyst composition, 1-10 parts of comonomer, 2-10 parts of functional filler and 0.1-0.5 part of toner;
combination D3: 10-95 parts of dicyclopentadiene, 5-90 parts of epoxy resin, 1-60 parts of epoxy resin curing agent, 1-10 parts of curing accelerator, 0.03-11 parts of catalyst composition, 1-10 parts of comonomer, 2-10 parts of functional filler, 1-5 parts of anti-aging agent and 0.3-1 part of coupling agent;
combination D4: 10-95 parts of dicyclopentadiene, 5-90 parts of epoxy resin, 1-60 parts of epoxy resin curing agent, 1-10 parts of curing accelerator, 0.03-11 parts of catalyst composition, 1-10 parts of comonomer, 2-10 parts of functional filler, 0.5-3 parts of polymerization regulator and 1-2 parts of cosolvent;
combination D5: 10-95 parts of dicyclopentadiene, 5-90 parts of epoxy resin, 1-60 parts of epoxy resin curing agent, 1-10 parts of curing accelerator and 0.03-11 parts of catalyst composition; the epoxy resin is bisphenol A type epoxy resin; the epoxy resin curing agent is one or more of methyl tetrahydrophthalic anhydride, methyl hexahydrophthalic anhydride and methyl-5-norbornene-2, 3-dicarboxylic anhydride; the curing accelerator is one or more of 2-methylimidazole, 2-ethylimidazole and 2,4, 6-tris (dimethylaminomethyl) phenol; the catalyst composition is 
And chlorinated paraffin having chlorine content of 5%;
combination D6: 10-95 parts of dicyclopentadiene, 5-90 parts of epoxy resin, 1-60 parts of epoxy resin curing agent, 1-10 parts of curing accelerator, 0.03-11 parts of catalyst composition, 1-10 parts of comonomer, 2-10 parts of functional filler and 0.1-0.5 part of toner; the epoxy resin is bisphenol A type epoxy resin; the epoxy resin curing agent is one or more of methyl tetrahydrophthalic anhydride, methyl hexahydrophthalic anhydride and methyl-5-norbornene-2, 3-dicarboxylic anhydride; the curing accelerator is one or more of 2-methylimidazole, 2-ethylimidazole and 2,4, 6-tris (dimethylaminomethyl) phenol; the catalyst composition is
And chlorinated paraffin having a chlorine content of 42%; the comonomer is one of ethylene, ethyl methacrylate and tert-butyl 5-norbornene-2-carboxylateOne or more species; the functional filler is one or more of glass fiber, carbon black and carbon fiber; />
Combination D7: 10-95 parts of dicyclopentadiene, 5-90 parts of epoxy resin, 1-60 parts of epoxy resin curing agent, 1-10 parts of curing accelerator, 0.03-11 parts of catalyst composition, 1-10 parts of comonomer, 2-10 parts of functional filler, 1-5 parts of anti-aging agent and 0.3-1 part of coupling agent; the epoxy resin is bisphenol A type epoxy resin; the epoxy resin curing agent is one or more of methyl tetrahydrophthalic anhydride, methyl hexahydrophthalic anhydride and methyl-5-norbornene-2, 3-dicarboxylic anhydride; the curing accelerator is one or more of 2-methylimidazole, 2-ethylimidazole and 2,4, 6-tris (dimethylaminomethyl) phenol; the catalyst composition is 
And chlorinated paraffin having a chlorine content of 60%; the comonomer is one or more of ethylene, ethyl methacrylate and 5-norbornene-2-carboxylic acid tert-butyl ester; the functional filler is one or more of glass fiber, carbon black and carbon fiber; the anti-aging agent is one or more of 2, 6-di-tert-butyl-4-methylphenol, 2-methylaniline, tinuvin B75 and 2-hydroxy-4-methoxybenzophenone; the coupling agent is a silane coupling agent;
combination D8: 10-95 parts of dicyclopentadiene, 5-90 parts of epoxy resin, 1-60 parts of epoxy resin curing agent, 1-10 parts of curing accelerator, 0.03-11 parts of catalyst composition, 1-10 parts of comonomer, 2-10 parts of functional filler, 0.5-3 parts of polymerization regulator and 1-2 parts of cosolvent; the epoxy resin is bisphenol A type epoxy resin; the epoxy resin curing agent is one or more of methyl tetrahydrophthalic anhydride, methyl hexahydrophthalic anhydride and methyl-5-norbornene-2, 3-dicarboxylic anhydride; the curing accelerator is one or more of 2-methylimidazole, 2-ethylimidazole and 2,4, 6-tris (dimethylaminomethyl) phenol; the catalyst composition is
And chlorinated paraffin having chlorine content of 5%; the comonomer is one or more of ethylene, ethyl methacrylate and 5-norbornene-2-carboxylic acid tert-butyl ester; the functional filler is one or more of glass fiber, carbon black and carbon fiber; the polymerization regulator is triethyl phosphite; the cosolvent is acetone;
Combination D9: 80 parts of dicyclopentadiene, 20 parts of bisphenol A type epoxy resin, 13 parts of methyl-5-norbornene-2, 3-dicarboxylic anhydride, 3 parts of 2,4, 6-tris (dimethylaminomethyl) phenol and 0.67 part of a catalyst composition; the catalyst composition is
And chlorinated paraffin with chlorine content of 5%>
The concentration of the substances in the chlorinated paraffin was 0.1mol/L;
combination D10: 95 parts of dicyclopentadiene, 5 parts of bisphenol A epoxy resin, 1.14 parts of methyl hexahydrophthalic anhydride, 9.70 parts of 2-ethylimidazole, 0.57 part of catalyst composition, 1.37 parts of 5-norbornene-2-carboxylic acid tert-butyl ester, 5 parts of carbon fiber and 0.34 part of toner; the catalyst composition is
And chlorinated paraffin having a chlorine content of 42%,
the mass concentration of the substances in the chlorinated paraffin is 0.25mol/L;
combination D11: 55 parts of dicyclopentadiene, 45 parts of bisphenol A epoxy resin, 57.93 parts of methyltetrahydrophthalic anhydride, 6.40 parts of 2-methylimidazole, 0.03 part of catalyst composition, 10 parts of ethylene, 9.66 parts of glass fiber, 2 parts of 2-methylaniline and 172.64 parts of silane coupling agent A; the catalyst composition is
And chlorinated paraffin with chlorine content of 60%>
The concentration of the substances in the chlorinated paraffin was 0.6mol/L;
Combination D12: 10 parts of dicyclopentadiene, 90 parts of bisphenol A type epoxy resin, 18.76 parts of methyl-5-norbornene-2, 3-dicarboxylic anhydride, 1.56 parts of 2,4, 6-tris (dimethylaminomethyl) phenol, 10.94 parts of a catalyst composition, 5 parts of ethyl methacrylate, 2.50 parts of carbon black, 1 part of triethyl phosphite and 1.56 parts of acetone; the catalyst composition is
And chlorinated paraffin with chlorine content of 5%>
The concentration of the substances in the chlorinated paraffin was 0.1mol/L.
12. The resin composition according to claim 1,
R 1 and R is 2 Independently C 4 -C 18 An alkyl group.
13. The resin composition according to claim 12, wherein,
R 1 and R is 2 Independently n-butyl or n-hexyl.
14. A resin material prepared from the resin composition according to any one of claims 1 to 13.
15. The resinous material of claim 14, wherein the epoxy resin and dicyclopentadiene each crosslink and polymerize to form an interpenetrating network structure.
16. A method for preparing a resin material, comprising the steps of: taking the resin composition as defined in any one of claims 1-13 as a raw material, uniformly mixing dicyclopentadiene, epoxy resin, an epoxy resin curing agent, a curing accelerator and a catalyst composition, optionally adding one or more of a comonomer, a functional filler and an auxiliary agent, and curing and molding to obtain the resin material.
17. The method of claim 16, wherein the method of manufacture uses RIM technology.
18. The method of claim 17, wherein the RIM process comprises the steps of:
(1) Mixing dicyclopentadiene and epoxy resin to obtain solution A;
(2) Mixing the catalyst composition, the epoxy resin curing agent and the curing accelerator to obtain a solution B;
(3) Optionally adding one or more of a comonomer, a functional filler and an auxiliary agent to the liquid a or the liquid B;
(4) Leading the solution A and the solution B into a storage system for standby;
(5) The solution A and the solution B are subjected to reaction injection molding in RIM equipment;
(6) Solidifying to obtain the resin material.
19. The method of claim 18, wherein,
in the step (4), the storage system is a storage tank of RIM equipment;
and/or, in the step (4), the temperature of the storage system is-10-40 ℃;
and/or in the step (5), the mass ratio of the liquid A to the liquid B is 1:1-20:1;
and/or in the step (5), the solution A and the solution B are mixed and injected into a mould on line to finish reaction injection molding;
and/or, in the step (5), the glue injection speed of the reaction injection molding is 200mL/min-100L/min;
And/or, in the step (5), the glue injection pressure of the reaction injection molding is 0.1-20bar;
and/or, in the step (6), the temperature during curing is 70-180 ℃;
and/or, in the step (6), the curing time is 1-120min.
20. The method of claim 19, wherein,
in the step (4), the temperature of the storage system is-5-25 ℃;
and/or in the step (5), the mass ratio of the liquid A to the liquid B is 1:1-15:1;
and/or, in the step (5), the glue injection speed of the reaction injection molding is 500mL/min-30L/min;
and/or, in the step (5), the glue injection pressure of the reaction injection molding is 6-25bar;
and/or, in the step (6), the temperature during curing is 70-100 ℃.
21. The method of claim 20, wherein,
in the step (5), the mass ratio of the liquid A to the liquid B is 1:1-10:1.
22. A resin material produced according to the production method of any one of claims 16 to 21.
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| CN115340738A (en) * | 2022-09-06 | 2022-11-15 | 明阳智慧能源集团股份公司 | Polydicyclopentadiene resin composition material for wind driven generator blade |
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