CN108441158A - A kind of bi-component epoxy modified silane end capping polypropylene oxide fluid sealant and preparation method thereof - Google Patents
A kind of bi-component epoxy modified silane end capping polypropylene oxide fluid sealant and preparation method thereof Download PDFInfo
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- CN108441158A CN108441158A CN201810262588.6A CN201810262588A CN108441158A CN 108441158 A CN108441158 A CN 108441158A CN 201810262588 A CN201810262588 A CN 201810262588A CN 108441158 A CN108441158 A CN 108441158A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J171/00—Adhesives based on polyethers obtained by reactions forming an ether link in the main chain; Adhesives based on derivatives of such polymers
- C09J171/02—Polyalkylene oxides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The present invention provides a kind of bi-component epoxy modified silane end capping polypropylene oxide fluid sealants, including component A and B component.Bi-component epoxy modified silane end capping polypropylene oxide fluid sealant of the present invention has preferable performance, preparation process simple and environmentally friendly.The tensile strength and tensile shear strength of fluid sealant product is substantially improved using epoxy-modified in the present invention, and adhesive property is excellent, the advantage of comprehensive epoxy and modified silane fluid sealant；Fluid sealant product of the present invention has given full play to the performance advantage of modified silane fluid sealant, adhesive strength is big, good weatherability, exempts from that silane coupling agent, surface drying time are short, preparation process is simple, environmentally friendly (dealcoholysis cures system, without isocyanates), and product meets environmental requirement from production to the equal unharmful substance discharge of process is used.
Description
Technical field
The present invention relates to a kind of bi-component epoxy modified silane end capping polypropylene oxide fluid sealants and preparation method thereof.
Background technology
Silante terminated polypropylene oxide fluid sealant is a kind of novel environment friendly modified silane fluid sealant, and it is close to inherit silicone
The advantages of sealing and polyurethane elastic sealant and strong point show have excellent weatherability, durability, high anti-deformation position
It the advantages that shifting ability, good cementability, covering with paint property, the friendly property of environment, low staining and excellent transaction capabilities, can be applied to
Multiple industrial circles.With the continuous application and development of industrial new material, new process, and masses are for environmental protection and energy-saving and emission-reduction
It is required that increasingly raising, fluid sealant enterprise more focus on product the feature of environmental protection, increase technical research dynamics, exploitation it is environmentally protective
Type product obtains continual and steady market competition advantage to be different from mid and low-end products in the market.Due to Silante terminated polycyclic oxygen
The feature of environmental protection of propane fluid sealant, the balance of various aspects comprehensive performance and excellent technological operation performance, many industry assembling factories
Quotient has wilderness demand to Silante terminated polypropylene oxide fluid sealant.
Using epoxy resin be the sqtructural adhesive of base-material from nineteen fifties come out since, apply and constantly increasing
Add.Epoxy resin is all active to a variety of curing agent, and to obtain product various in style, they have different solidifying requirements
And end-use properties.Epoxy resin cure no coupling product shrinks very little, and has adhesiveness to a variety of different substrate materials.Although ring
Oxygen adhesive only represents sub-fraction in total Market of Adhesives, but high intensity and durability be key request place it be
It is impayable.Epoxy resin has excellent adhesive property, can not only be bonded timber, ceramics, moreover it is possible to bonded metal, glass etc.,
There is the title of all-purpose adhesive.Thus epoxyn is applied in industries such as communications and transportation, electronics industry, mechanical industries.Ring
Oxygen adhesive has a wide range of applications in various fields, has preferable development prospect, so being ground to epoxyn
Study carefully and never stops, and room temperature curing epoxy adhesive is even more the research and development direction of adhesive area.
Silante terminated polypropylene oxide fluid sealant is modified by epoxy, the bonding of modified silane glue can be substantially improved
Intensity, bulk strength and hardness can be bonded a variety of materials extensively, and high mechanical strength, shrinkage is low, and electrical insulation capability is superior,
Chemical stability is good, resistance to mould.It is expected that bi-component epoxy modified silane end capping polypropylene oxide fluid sealant is in aviation, automobile, light
The fields such as work machine-building, electronics, the reinforcing repair of building, the repairing on highway airport will have extensive use.
It is reported at present without related patents.
Invention content
The object of the present invention is to provide a kind of bi-component epoxy modified silane end capping polypropylene oxide fluid sealant and its systems
Preparation Method.
To achieve the above object, the technical solution used in the present invention：A kind of bi-component epoxy modified silane sealing end polycyclic
The weight ratio of Ethylene Oxide fluid sealant, including component A and B component, the component A and B component is 1:1；
The component A includes the epoxy resin of 40~80 parts by weight, the diluent of 5~20 parts by weight, 60~240 parts by weight
Filler, the thixotropic agent of 2~8 parts by weight, the light stabilizer of 1~2 parts by weight, the antioxidant of 1~2 parts by weight and 1~5 parts by weight
Catalyst；
The B component includes the Silante terminated polypropylene oxide of 80~120 parts by weight, the diluent of 5~20 parts by weight, 60
The bonding rush of the filler of~200 parts by weight, the thixotropic agent of 2~8 parts by weight, the curing agent of 10~50 parts by weight, 1~4 parts by weight
Into the crosslinking agent of agent and 1~4 parts by weight.
Preferably, the component A include the epoxy resin of 40~80 parts by weight, the diluent of 10~20 parts by weight, 60~
The filler of 240 parts by weight, the thixotropic agent of 2~8 parts by weight, the light stabilizer of 1~2 parts by weight, the antioxidant of 1~2 parts by weight and 1
The catalyst of~5 parts by weight.
Preferably, the component A includes that the epoxy resin of 80 parts by weight, the diluent of 20 parts by weight, 240 parts by weight are filled out
The catalyst of material, the thixotropic agent of 2 parts by weight, the light stabilizer of 1 parts by weight, the antioxidant of 1.5 parts by weight and 1 parts by weight；
The B component includes the Silante terminated polypropylene oxide of 80 parts by weight, the diluent of 20 parts by weight, 70 parts by weight
The crosslinking agent of filler, the thixotropic agent of 2 parts by weight, the curing agent of 15 parts by weight, the adhesion promoters of 2 parts by weight and 2 parts by weight.
Preferably, the Silante terminated polypropylene oxide polymer be dimethoxysilyl end capping polypropylene oxide,
At least one of trimethoxy silane end capping polypropylene oxide and triethoxysilane end capping polypropylene oxide；The asphalt mixtures modified by epoxy resin
Fat be in bisphenol A type epoxy resin, bisphenol f type epoxy resin, phenol aldehyde type epoxy resin and o-cresol formaldehyde type epoxy resin extremely
Few one kind.
Preferably, the diluent in the component A is polyoxypropyleneglycol, dioctyl phthalate, O-phthalic
Dibutyl phthalate, two certain herbaceous plants with big flowers ester of phthalic acid, dinonyl phthalate, chlorinated paraffin 52,4,5- epoxy tetrahydrophthalic acids
At least one of (2- ethyls) own ester；Filler in the component A is calcium carbonate, carbon black, silica, antimony oxide, oxidation
At least one of aluminium, aluminium hydroxide, zinc oxide, chlorinated paraffin 70；Thixotropic agent in the component A is polyamide, gas phase two
At least one of silica, castor oil, organobentonite.
Preferably, the diluent in the B component is polyoxypropyleneglycol, dioctyl phthalate, O-phthalic
Dibutyl phthalate, two certain herbaceous plants with big flowers ester of phthalic acid, dinonyl phthalate, chlorinated paraffin 52,4,5- epoxy tetrahydrophthalic acids
At least one of (2- ethyls) own ester；Filler in the B component is calcium carbonate, carbon black, silica, antimony oxide, oxidation
At least one of aluminium, aluminium hydroxide, zinc oxide, chlorinated paraffin 70；Thixotropic agent in the B component is polyamide, gas phase two
At least one of silica, castor oil, organobentonite.
Preferably, the light stabilizer is benzophenone, benzotriazole, salicylic acid esters, triazines, substitution propylene
At least one of nitrile, hindered amine light stabilizer；The antioxidant is Hinered phenols antioxidant, phosphorous acid esters antioxygen
At least one of agent, thioester antioxidant, composite antioxidant；The crosslinking agent is vinyltrimethoxysilane, methyl
At least one of trimethoxy silane, vinyltriethoxysilane；The adhesion promoter is the silicon containing alkoxy grp
Alkane.
Preferably, the catalyst is organic tin catalyst；The curing agent is organic amine compound, mercaptan chemical combination
At least one of object.
The present invention provides the preparation sides of bi-component epoxy modified silane end capping polypropylene oxide fluid sealant described above
Method includes the following steps：
(1) epoxy resin of component A, diluent, filler, thixotropic agent, light stabilizer, antioxidant and catalyst are mixed equal
It is even, obtain component A；
(2) by Silante terminated polypropylene oxide, diluent and the filler of B component in 80~120 DEG C, 0.085~
It is uniformly mixed under 0.095MPa vacuum degrees, and maintains the above mixing condition；The temperature of obtained mixture is down to 50 DEG C or less
Afterwards, thixotropic agent, curing agent, adhesion promoters and the crosslinking agent of B component is added, under dry inert gas shielding atmosphere, mixes
It closes uniform；
(3) A, B component pack preservations by specification respectively after being made, by weight being 1 when use:It is used after 1 mixing.
Preferably, it is 2~6 hours that the time of the above mixing condition is maintained in the step (2).
The beneficial effects of the present invention are：
Bi-component epoxy modified silane end capping polypropylene oxide fluid sealant of the present invention has preferable performance, preparation process letter
Single and environmental protection.
Specifically：
(1) present invention uses epoxy-modified, and the tensile strength and tensile shear strength of fluid sealant product is substantially improved, and is bonded
It has excellent performance, the advantage of comprehensive epoxy and modified silane fluid sealant；
(2) diluent coordinates Silante terminated polypropylene oxide and filler using the excellent polyoxypropyleneglycol of compliance
System has high resiliency after sealing glue solidifying；
(3) curing rate is fast, is suitable for large area and depth bonding application；
(4) addition of the auxiliary agents such as dehydrating agent, adhesion promoter disperses using under inert gas shielding atmosphere in preparation method
Uniformly, the production that sizing material mixed process generates high temperature and auxiliary agent volatilizees and influences product weight under condition of high vacuum degree is avoided to ask
Topic；
(5) fluid sealant product of the present invention has given full play to the performance advantage of modified silane fluid sealant, and adhesive strength is big, weather-proof
Property it is good, exempt from that silane coupling agent, surface drying time are short, preparation process is simple, system is environmentally friendly (dealcoholysis cure, be free of isocyanates), and produce
Product meet environmental requirement from production to the equal unharmful substance discharge of process is used.
Specific implementation mode
Embodiment 1
A kind of reality of the preparation method of bi-component epoxy modified silane end capping polypropylene oxide fluid sealant of the present invention
Example is applied, is included the following steps：
(1) by the bisphenol A type epoxy resin of 40 parts by weight, the two certain herbaceous plants with big flowers esters of phthalic acid of 10 parts by weight, 60 parts by weight
2- (the tertiary base phenyl of two fourths of 2- hydroxyls -3,5-) -5- chlorobenzenes of calcium carbonate, the aerosil of 6 parts by weight, 1.5 parts by weight
And bis- (acetopyruvic acid) dibutyl tins mixing of triazole, the 2,6 di tert butyl 4 methyl phenol of 2 parts by weight, 5 parts by weight is equal
It is even, it is packed by specification, component A is made；
(2) by the dimethoxysilyl end capping polypropylene oxide of 100 parts by weight, the polypropylene oxide two of 5 parts by weight
Alcohol, the silica of 60 parts by weight are uniformly mixed under 80 DEG C, 0.095MPa vacuum degrees, and maintain the above mixing condition 6 hours；
After the temperature of obtained mixture is down to 50 DEG C or less, the polyamide thixotropes of 6 parts by weight, the modification fat of 10 parts by weight is added
The methyltrimethoxysilane of fat amine, N- (β-aminoethyl)-γ-aminopropyltrimethoxysilane of 1 parts by weight, 1 parts by weight,
It under dry inert gas shielding atmosphere, is uniformly mixed, is packed by specification, B component is made；
A, B component preserves respectively after being made, by weight being 1 when use:It is used after 1 mixing.
Embodiment 2
A kind of reality of the preparation method of bi-component epoxy modified silane end capping polypropylene oxide fluid sealant of the present invention
Example is applied, is included the following steps：
(1) by the bisphenol A type epoxy resin of 60 parts by weight, 4,5- epoxies tetrahydrophthalic acid (the 2- second of 15 parts by weight
Base) own ester, the aluminium oxide of 200 parts by weight, the organobentonite of 8 parts by weight, 2 parts by weight 2- (the two tertiary bases of fourth of 2- hydroxyls -3,5-
Phenyl) -5- chlorinated benzotriazoles, the 2,6 di tert butyl 4 methyl phenol of 1 parts by weight, 4 parts by weight di lauric dibutyl
Tin is uniformly mixed, and is packed by specification, and component A is made；
(2) by the trimethoxy silane end capping polypropylene oxide of 120 parts by weight, two fourth of phthalic acid of 10 parts by weight
Ester, the aluminium oxide of 200 parts by weight are uniformly mixed under 100 DEG C, 0.090MPa vacuum degrees, and maintain the above mixing condition 4 hours；
After the temperature of obtained mixture is down to 50 DEG C or less, the aerosil of 8 parts by weight, the mercaptan of 50 parts by weight, 4 are added
The vinyltrimethoxysilane of the gamma-aminopropyl-triethoxy-silane of parts by weight, 4 parts by weight is protected in dry inert gas
It protects under atmosphere, is uniformly mixed, is packed by specification, B component is made；
A, B component preserves respectively after being made, by weight being 1 when use:It is used after 1 mixing.
Embodiment 3
A kind of reality of the preparation method of bi-component epoxy modified silane end capping polypropylene oxide fluid sealant of the present invention
Example is applied, is included the following steps：
(1) by the bisphenol f type epoxy resin of 80 parts by weight, the two certain herbaceous plants with big flowers esters of phthalic acid of 20 parts by weight, 160 parts by weight
2- (the two tertiary bases of fourth of 2- hydroxyls -3,5- of calcium carbonate, the antimony oxide of 80 parts by weight, the aerosil of 2 parts by weight, 1 parts by weight
Phenyl) -5- chlorinated benzotriazoles, the 2,6 di tert butyl 4 methyl phenol of 1.5 parts by weight, 1 parts by weight bis- (acetylacetone,2,4-pentanediones
Acid) dibutyl tin be uniformly mixed, packed by specification, be made component A；
(2) by the dimethoxysilyl end capping polypropylene oxide of 80 parts by weight, the chlorinated paraffin 52,70 of 20 parts by weight
The carbon black of parts by weight is uniformly mixed under 120 DEG C, 0.085MPa vacuum degrees, and maintains the above mixing condition 2 hours；By what is obtained
After the temperature of mixture is down to 50 DEG C or less, the polyamide thixotropes of 2 parts by weight, 4, the 6- (dimethylamino of 15 parts by weight is added
Methyl) trisphenol, N- (β-aminoethyl)-γ-aminopropyltrimethoxysilane of 2 parts by weight, 2 parts by weight vinyl trimethoxy
Base silane is uniformly mixed, is packed by specification under dry inert gas shielding atmosphere, and B component is made；
A, B component preserves respectively after being made, by weight being 1 when use:It is used after 1 mixing.
Effect detection：
The bi-component epoxy modified silane end capping polypropylene oxide fluid sealant that Examples 1 to 3 embodiment is prepared into
Row performance test obtains testing result as shown in Table 1：
The performance of 1 bi-component epoxy modified silane end capping polypropylene oxide fluid sealant of table
As known from Table 1, the bi-component epoxy modified silane end capping polypropylene oxide fluid sealant that Examples 1 to 3 is prepared,
Its elasticity is excellent, is mainly shown as high tensile and high elongation rate of tensile failure, especially embodiment 3, overall performance is better than similar
Advanced product.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than is protected to the present invention
The limitation of range is protected, although being explained in detail to the present invention with reference to preferred embodiment, those skilled in the art should
Understand, technical scheme of the present invention can be modified or replaced equivalently, without departing from the essence of technical solution of the present invention
And range.
Claims (10)
1. a kind of bi-component epoxy modified silane end capping polypropylene oxide fluid sealant, which is characterized in that including component A and B component,
The weight ratio of the component A and B component is 1:1；
The component A includes that the epoxy resin of 40~80 parts by weight, the diluent of 5~20 parts by weight, 60~240 parts by weight are filled out
Material, the thixotropic agent of 2~8 parts by weight, the light stabilizer of 1~2 parts by weight, the antioxidant of 1~2 parts by weight and 1~5 parts by weight are urged
Agent；
The B component include the Silante terminated polypropylene oxide of 80~120 parts by weight, the diluent of 5~20 parts by weight, 60~
The adhesion promoter of the filler of 200 parts by weight, the thixotropic agent of 2~8 parts by weight, the curing agent of 10~50 parts by weight, 1~4 parts by weight
The crosslinking agent of agent and 1~4 parts by weight.
2. bi-component epoxy modified silane end capping polypropylene oxide fluid sealant according to claim 1, which is characterized in that institute
It includes the epoxy resin of 40~80 parts by weight, the diluent of 10~20 parts by weight, the filler of 60~240 parts by weight, 2 to state component A
The catalysis of the thixotropic agent of~8 parts by weight, the light stabilizer of 1~2 parts by weight, the antioxidant of 1~2 parts by weight and 1~5 parts by weight
Agent.
3. bi-component epoxy modified silane end capping polypropylene oxide fluid sealant according to claim 1, which is characterized in that institute
State the thixotroping that component A includes the epoxy resin of 80 parts by weight, the diluent of 20 parts by weight, the filler of 240 parts by weight, 2 parts by weight
Agent, the light stabilizer of 1 parts by weight, the antioxidant of 1.5 parts by weight and 1 parts by weight catalyst；
The B component includes that the Silante terminated polypropylene oxide of 80 parts by weight, the diluents of 20 parts by weight, 70 parts by weight are filled out
The crosslinking agent of material, the thixotropic agent of 2 parts by weight, the curing agent of 15 parts by weight, the adhesion promoters of 2 parts by weight and 2 parts by weight.
4. bi-component epoxy modified silane end capping polypropylene oxide fluid sealant according to claim 1, which is characterized in that institute
It is poly- for dimethoxysilyl end capping polypropylene oxide, trimethoxy silane sealing end to state Silante terminated polypropylene oxide polymer
At least one of propylene oxide and triethoxysilane end capping polypropylene oxide；The epoxy resin is bisphenol type epoxy tree
At least one of fat, bisphenol f type epoxy resin, phenol aldehyde type epoxy resin and o-cresol formaldehyde type epoxy resin.
5. bi-component epoxy modified silane end capping polypropylene oxide fluid sealant according to claim 1, which is characterized in that institute
It is polyoxypropyleneglycol, dioctyl phthalate, dibutyl phthalate, O-phthalic to state the diluent in component A
In sour two certain herbaceous plants with big flowers esters, dinonyl phthalate, chlorinated paraffin 52,4,5- epoxies tetrahydrophthalic acid (2- ethyls) own ester extremely
Few one kind；Filler in the component A be calcium carbonate, carbon black, silica, antimony oxide, aluminium oxide, aluminium hydroxide, zinc oxide,
At least one of chlorinated paraffin 70；Thixotropic agent in the component A is polyamide, aerosil, castor oil, organic bentonite
Moisten at least one of soil.
6. bi-component epoxy modified silane end capping polypropylene oxide fluid sealant according to claim 1, which is characterized in that institute
It is polyoxypropyleneglycol, dioctyl phthalate, dibutyl phthalate, O-phthalic to state the diluent in B component
In sour two certain herbaceous plants with big flowers esters, dinonyl phthalate, chlorinated paraffin 52,4,5- epoxies tetrahydrophthalic acid (2- ethyls) own ester extremely
Few one kind；Filler in the B component be calcium carbonate, carbon black, silica, antimony oxide, aluminium oxide, aluminium hydroxide, zinc oxide,
At least one of chlorinated paraffin 70；Thixotropic agent in the B component is polyamide, aerosil, castor oil, organic bentonite
Moisten at least one of soil.
7. bi-component epoxy modified silane end capping polypropylene oxide fluid sealant according to claim 1, which is characterized in that institute
It is steady for benzophenone, benzotriazole, salicylic acid esters, triazines, group-substituted acrylonitrile, hindered amines light to state light stabilizer
Determine at least one of agent；The antioxidant be Hinered phenols antioxidant, phosphite ester kind antioxidant, thioester antioxidant,
At least one of composite antioxidant；The crosslinking agent is vinyltrimethoxysilane, methyltrimethoxysilane, vinyl
At least one of triethoxysilane；The adhesion promoter is the silane containing alkoxy grp.
8. bi-component epoxy modified silane end capping polypropylene oxide fluid sealant according to claim 1, which is characterized in that institute
It is organic tin catalyst to state catalyst；The curing agent is at least one of organic amine compound, mercaptan compound.
9. the preparation method of bi-component epoxy modified silane end capping polypropylene oxide fluid sealant as described in claim 1, special
Sign is, includes the following steps：
(1) epoxy resin of component A, diluent, filler, thixotropic agent, light stabilizer, antioxidant and catalyst are uniformly mixed,
Obtain component A；
(2) by Silante terminated polypropylene oxide, diluent and the filler of B component in 80~120 DEG C, 0.085~0.095MPa it is true
It is uniformly mixed under reciprocal of duty cycle, and maintains the above mixing condition；After the temperature of obtained mixture is down to 50 DEG C or less, B groups are added
Thixotropic agent, curing agent, adhesion promoters and the crosslinking agent divided is uniformly mixed under dry inert gas shielding atmosphere；
(3) A, B component pack preservations by specification respectively after being made, by weight being 1 when use:It is used after 1 mixing.
10. preparation method as claimed in claim 9, which is characterized in that maintain the above mixing condition in the step (2)
Time is 2~6 hours.
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| CN201810262588.6A CN108441158A (en) | 2018-03-27 | 2018-03-27 | A kind of bi-component epoxy modified silane end capping polypropylene oxide fluid sealant and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020186379A1 (en) * | 2019-03-15 | 2020-09-24 | Henkel Ag & Co. Kgaa | Thermally conductive potting composition |
Citations (4)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020186379A1 (en) * | 2019-03-15 | 2020-09-24 | Henkel Ag & Co. Kgaa | Thermally conductive potting composition |
| CN113574132A (en) * | 2019-03-15 | 2021-10-29 | 汉高股份有限及两合公司 | Thermally conductive potting composition |
| JP7423652B2 (en) | 2019-03-15 | 2024-01-29 | ヘンケル・アクチェンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト・アウフ・アクチェン | Thermally conductive potting composition |
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