CN109135660A - A kind of dealcoholized type bi-component sealant and preparation method thereof - Google Patents

A kind of dealcoholized type bi-component sealant and preparation method thereof Download PDF

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Publication number
CN109135660A
CN109135660A CN201810971458.XA CN201810971458A CN109135660A CN 109135660 A CN109135660 A CN 109135660A CN 201810971458 A CN201810971458 A CN 201810971458A CN 109135660 A CN109135660 A CN 109135660A
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component
weight
parts
dealcoholized type
tackifier
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CN201810971458.XA
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CN109135660B (en
Inventor
张原志成
俞云
赵超超
陶小乐
何永富
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Hangzhou Zhijiang Silicone Chemicals Co Ltd
Hangzhou Zhijiang New Material Co Ltd
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Hangzhou Zhijiang Silicone Chemicals Co Ltd
Hangzhou Zhijiang New Material Co Ltd
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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
    • C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
    • C09J183/04—Polysiloxanes
    • 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
    • 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
    • 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
    • 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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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Sealing Material Composition (AREA)

Abstract

Be 100:(2~20 including mass ratio the present invention provides a kind of dealcoholized type bi-component sealant) component A and B component；The component A includes: 100 parts by weight of hydroxyl endblocked polydimethylsiloxane；5 parts by weight of solid packing~150 parts by weight；The B component includes: 8 parts by weight of crosslinking agent~35 parts by weight；1 parts by weight of tackifier~20 parts by weight；0.1 parts by weight~1 part of catalyst；The crosslinking agent has general formula: (R1O)3‑aR2 aSi‑R3‑SiR4 b(OR5)3‑b；R1、R2、R4、R5It is independent to be selected from monovalent hydrocarbon；R3The bivalent hydrocarbon radical for being 2~20 for carbon atom number；A=0 or 1, b=0 or 1；The tackifier are prepared by amino coupling agent, epoxy group coupling agent and specific Si-N key compound.Dealcoholized type bi-component sealant provided by the invention uses certain content component, realize preferable interaction, make product that there is good adhesive property, durability, leakproofness and long-term storage stability, suitable for photovoltaic module, motor vehicle assembly, electronic apparatus and glass for building, the sealing such as curtain wall component.

Description

A kind of dealcoholized type bi-component sealant and preparation method thereof
Technical field
The present invention relates to have room temperature silicone sulphurated siliastic technical field to be more specifically to be related to a kind of dealcoholized type Bi-component sealant and preparation method thereof.
Background technique
The room temperature vulcanization organosilicon sealant for obtaining organic silicon rubber with the moisture-curable in air at room temperature exists Exist on the market a variety of and is used widely.The wherein dimethyl silicone polymer and alcoxyl of hydroxyl or alkoxysilyl group sealing end Base silane is primary raw material, and in the presence of Organometal compound catalyst, releases alcohol compound and cured room temperature Sulphurated siliastic, it is corrosion-free to metal class because having many advantages, such as no bromine, not only make in photovoltaic module, automobile, electric appliance and electronic field It is used widely for sealing material and adhesives, and is also used widely in building field.Specific room temperature is solid The property changed organic silicon rubber constituent can be made into one-component and bicomponent form.Wherein the composition solidification of single-component glue depends on atmosphere Humidity, but bi-component glue solidifies the just humidity independent of atmosphere.The glue of bicomponent form can bring surface layer and inside The features such as almost whole simultaneously uniform curing is considered as a kind of excellent deep cure organic silicon rubber.
In recent years, solar cell, LED lamp etc. as the renewable sources of energy representative product and rapidly developed；It is low simultaneously The demand for the organosilicon sealants of characteristics such as cost, whole uniform curing, rapid curing, activity duration be short also increasingly increases, I.e. deep cure organic silicon rubber increasingly obtains the attention of people and is widely applied；Equally it is in motor vehicle assembly field It is used widely.
But some problems are still had in the practical application of bi-component alcohol type glue.As applied glue on solar battery In durability test, occur to vulcanize anti-originality under high temperature and humidity, the glue vulcanized under conditions of solidifying insufficient softens again Or become phenomena such as liquid.Moreover, its curability is gradually reduced or even is disappeared with the extension of storage time with transitivity It loses, especially to glass, the cementability of Plastic, the substrate of metal class etc. is gradually deteriorated.Therefore, solar cell, automobile, LED The fields such as lamps and lanterns require its sealant to have corrosion-free, quick solidifying, also require have good adhesion durability while cementability And storage stability.For another example building field similarly for organic silica gel require low cost, integrally curing uniformly, shorten operation Time etc.；It is especially required in the application fields such as 2 sealings of compound glass and structural bond higher and higher.But dealcoholysis for building There is also following problems for type bi-component sealant: in long period of soaking in water or under water ultraviolet light, door and window for building is strong Change glass, the phenomenon that cementability decline, removing usually occurs.In order to solve this problem, the prior art is by adding some rings Oxygen coupling agent and amine coupling agent etc. improve adhesion durability, but impregnate etc. and still to lack under the conditions of harsh environments in water The adhesion durability of glue and the extended storage stability of glue.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of dealcoholized type bi-component sealant and preparation method thereof, this hair There is the dealcoholized type bi-component sealant of bright offer good adhesive property, durability, leakproofness and long-term preservation to stablize Property, suitable for photovoltaic module, motor vehicle assembly, electronic apparatus and glass for building, the sealing such as curtain wall component.
Be 100:(2~20 including mass ratio the present invention provides a kind of dealcoholized type bi-component sealant) component A and B Component；
The component A includes:
100 parts by weight of hydroxyl endblocked polydimethylsiloxane；
5 parts by weight of solid packing~150 parts by weight；
The B component includes:
8 parts by weight of crosslinking agent~35 parts by weight；
1 parts by weight of tackifier~20 parts by weight；
0.1 parts by weight~1 part of catalyst；
The crosslinking agent has general formula shown in formula (I):
(R1O)3-aR2 aSi-R3-SiR4 b(OR5)3-bFormula (I)
In formula (I), R1、R2、R4、R5It is independent to be selected from monovalent hydrocarbon；R3The bivalent hydrocarbon radical for being 2~20 for carbon atom number；A= 0 or 1, b=0 or 1；
The tackifier are prepared by amino coupling agent, epoxy group coupling agent and Si-N key compound.
Preferably, the hydroxyl endblocked polydimethylsiloxane has general formula shown in formula (II):
HO-(SiMe2O)nSiMe2OH formula (II)；
In formula (II), n is the kinematic viscosity 200mm for making the hydroxyl endblocked polydimethylsiloxane at 25 DEG C2/ s~ 1000000mm2Positive number when/s.
Preferably, the solid packing includes calcium carbonate, white carbon black, quartz powder, hollow glass micro-ball, diatomite, two Titanium oxide, aluminium oxide, zinc oxide, magnesia, aoxidizes sub- one of zinc and carbonic acid Asia zinc or a variety of at aluminium hydroxide.
Preferably, the preparation method of the tackifier specifically:
Be 1:2:(0.2~3 by molar ratio) amino coupling agent, after epoxy group coupling agent and Si-N key compound mix, 48h~120h is reacted at 20 DEG C~60 DEG C, obtains tackifier.
Preferably, the amino coupling agent includes aminopropyl trimethoxysilane, aminopropyl triethoxysilane, γ-ammonia Ethylaminopropyl trimethoxy silane, γ-aminoethylaminopropyl triethoxysilane, bis- [3- (triethoxysilicane) propyl] amine, Bis- (3- trimethoxy-silylpropyl) amine, bis- [3- (trimethoxy silicon substrate) propyl] ethylenediamines and bis- [3- (triethoxysilicanes Base) propyl] one of ethylenediamine or a variety of.
Preferably, the epoxy group coupling agent includes that γ-glycidyl ether oxygen propyl trimethoxy silicane, γ-shrink are sweet Oily ether oxygen propyl triethoxysilane, γ-glycidyl ether oxygen propyl methyldiethoxysilane, γ-glycidyl ether oxygen third One of ylmethyl dimethoxysilane and β-(3,4- 7-oxa-bicyclo[4.1.0) ethyl trimethoxy silane are a variety of.
Preferably, the Si-N key compound is that intramolecular at least contains one or more Si-N keys and the nitrogen-atoms Silicon atom containing more than one alkoxy is linked to by the carbochain of more than one carbon atom, it includes 2,2- diethoxy -1- (trimethylsilyl) -1- azepine -2- silacyclopentan, 2- methoxyl group -2,4- dimethyl -1- azepine -2- silacyclopentan -1- Ethamine, 2,2- diethoxy -1- azepine -2- silacyclopentan, [1- (3- triethoxy silicon substrate) propyl] -2,2- diethoxy - 1- azepine -2- silacyclopentan, nitrogen-(2- aminoethyl) -2,2,4- trimethyl -1- azepine -2- silacyclopentan, 2,2- dimethoxy Base -1- azepine -2- silacyclopentan -1- ethamine, N- trimethyl silicon substrate -3- TSL 8330 and N- trimethyl silicane One of base -3-aminopropyltriethoxysilane is a variety of.
Preferably, the catalyst includes dibutyl tin dilaurate, tin dilaurate dioctyl tin, two pungent capric acid dimethyl One of tin and dibutyltin diacetate are a variety of.
The present invention also provides a kind of preparation methods of dealcoholized type bi-component sealant described in above-mentioned technical proposal, including Following steps:
A) hydroxyl endblocked polydimethylsiloxane and solid packing are uniformly mixed, obtain component A；
B) crosslinking agent, tackifier and catalyst are stirred until homogeneous under vacuum, obtain B component；
C) component A that step a) is obtained is mixed with the obtained B component of step b), obtains the sealing of dealcoholized type bi-component Glue；
The step a) and step b) is limited without sequence.
Preferably, the revolving speed of stirring described in step b) is 20r/min~40r/min, and temperature is 10 DEG C~69 DEG C, the time For 20min~60min.
Be 100:(2~20 including mass ratio the present invention provides a kind of dealcoholized type bi-component sealant) component A and B Component；The component A includes: 100 parts by weight of hydroxyl endblocked polydimethylsiloxane；5 parts by weight of solid packing~150 weight Part；The B component includes: 8 parts by weight of crosslinking agent~35 parts by weight；1 parts by weight of tackifier~20 parts by weight；0.1 weight of catalyst Measure part~1 part；The crosslinking agent has general formula: (R1O)3-aR2 aSi-R3-SiR4 b(OR5)3-b；Wherein, R1、R2、R4、R5It is independent Selected from monovalent hydrocarbon；R3The bivalent hydrocarbon radical for being 2~20 for carbon atom number；A=0 or 1, b=0 or 1；The tackifier are by amino idol Connection agent, epoxy group coupling agent and Si-N key compound are prepared.Compared with prior art, the double groups of dealcoholized type provided by the invention Point sealant uses certain content component, realizes preferable interaction, make product have good adhesive property, durability, Leakproofness and long-term storage stability, suitable for photovoltaic module, motor vehicle assembly, electronic apparatus and glass for building, The sealing such as curtain wall component.
In addition, preparation method provided by the invention is easy to operate, mild condition, it is suitable for large-scale production and application.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution of the present invention is clearly and completely described, it is clear that institute The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair The range of bright protection.
Be 100:(2~20 including mass ratio the present invention provides a kind of dealcoholized type bi-component sealant) component A and B Component；
The component A includes:
100 parts by weight of hydroxyl endblocked polydimethylsiloxane；
5 parts by weight of solid packing~150 parts by weight；
The B component includes:
8 parts by weight of crosslinking agent~35 parts by weight；
1 parts by weight of tackifier~20 parts by weight；
0.1 parts by weight~1 part of catalyst；
The crosslinking agent has general formula shown in formula (I):
(R1O)3-aR2 aSi-R3-SiR4 b(OR5)3-bFormula (I)
In formula (I), R1、R2、R4、R5It is independent to be selected from monovalent hydrocarbon；R3The bivalent hydrocarbon radical for being 2~20 for carbon atom number；A= 0 or 1, b=0 or 1；
The tackifier are prepared by amino coupling agent, epoxy group coupling agent and Si-N key compound.
In the present invention, the dealcoholized type bi-component sealant include mass ratio be 100:(2~20) component A and B group Divide, preferably 100:(2.5~10).
In the present invention, the component A includes hydroxyl endblocked polydimethylsiloxane and solid packing.In the present invention, The hydroxyl endblocked polydimethylsiloxane preferably has general formula shown in formula (II):
HO-(SiMe2O)nSiMe2OH formula (II)；
In formula (II), n is the kinematic viscosity 200mm for making the hydroxyl endblocked polydimethylsiloxane at 25 DEG C2/ s~ 1000000mm2Positive number when/s.In the preferred embodiment of the invention, the hydroxyl endblocked polydimethylsiloxane is α, ω- Dialkyl polydimethylsiloxane；The α, the viscosity of alpha, omega-dihydroxy polydimethyl siloxane are preferably 200mm2/ s~ 1000000mm2/ s, more preferably 500mm2/ s~100000mm2/ s, yet more preferably 1000mm2/ s~80000mm2/s.This hair The bright source to the hydroxyl endblocked polydimethylsiloxane is not particularly limited, using well known to those skilled in the art commercially available Commodity or the own product being prepared according to preparation method well known to those skilled in the art.In the present invention, the A group Divide the hydroxyl endblocked polydimethylsiloxane including 100 parts by weight.
In the present invention, the hydroxyl endblocked polydimethylsiloxane is basic sizing material；In the preferred embodiment of the invention In, the polydimethylsiloxane of Alpha-hydroxy-ω-trimethyl silicon substrate sealing end can be added to the sizing, reach glue low modulus, Soft, high elongation rate and the purpose for reducing free silicone oil.In the present invention, the Alpha-hydroxy-ω-trimethyl silicon substrate envelope The kinematic viscosity of the polydimethylsiloxane at end is preferably 100mm2/ s~100000mm2/ s, more preferably 1000mm2/ s~ 50000mm2/s.The present invention does not have special limit to the source of the Alpha-hydroxy-ω-trimethyl silicon substrate sealing end polydimethylsiloxane System, using commercial goods well known to those skilled in the art or own product.In the present invention, α-hydroxyl in the sizing The additive amount of base-ω-trimethyl silicon substrate sealing end polydimethylsiloxane is preferably 0~150 parts by weight.
In the present invention, the solid packing preferably includes calcium carbonate, white carbon black, quartz powder, hollow glass micro-ball, silicon Diatomaceous earth, aluminium hydroxide, aluminium oxide, zinc oxide, magnesia, aoxidizes sub- one of zinc and carbonic acid Asia zinc or a variety of at titanium dioxide, More preferably one of calcium carbonate, white carbon black and quartz powder or a variety of.The present invention does not have the source of the solid packing It is specifically limited, using commercial goods well known to those skilled in the art or own product.In the present invention, the component A packet Include 5 parts by weight~150 parts by weight solid packing, preferably 40 parts by weight~140 parts by weight.
In the present invention, the calcium carbonate is preferably selected from one in nanometer calcium carbonate, precipitated calcium carbonate and powdered whiting Kind is a variety of, more preferably nanometer calcium carbonate.In the preferred embodiment of the invention, the calcium carbonate is nanometer calcium carbonate, institute The BET specific surface area for stating nanometer calcium carbonate is 25m2/ g~60m2/g；The present invention uses above-mentioned nanometer calcium carbonate, is conducive to it in A Dispersion in component, to provide reinforcing effect.The present invention preferably carries out fatty acid surface processing, Neng Gouti to above-mentioned calcium carbonate Its high dispersibility in component A；The amount of fatty acid surface processing is based on 100 parts by weight solids fillers, the fat of surface covering The amount of acid is 3 parts by weight~10 parts by weight.
In the present invention, the white carbon black is preferably selected from gas-phase silica and/or precipitated silica, and more preferably gas phase is white Carbon black.The present invention preferably carries out hexa methyl silazane, dimethoxydimethylsilane, dimethyldichlorosilane to above-mentioned white carbon black Or the surface treatment of siloxane oligomer.
In addition, the present invention under the premise of not influencing properties of product, can also add widely applied additive in silicon rubber； Inorganic additive, mould inhibitor, fire retardant (optional platinum compound such as in addition to solid packing as described in the above technical scheme And zinc carbonate powder etc.), heat-resistant agent (optional iron oxide, cerium oxide etc.), plasticizer, thickener, water etc..Currently preferred In embodiment, the component A further includes 0~30 parts by weight of plasticizer, preferably 5 parts by weight~20 parts by weight；The plasticizer Preferably dimethicone；The kinematic viscosity of the dimethicone is preferably 50mm2/ s~12000mm2/ s, more preferably 100mm2/ s~5000mm2/s.In the preferred embodiment of the invention, the component A further includes 0~10 parts by weight of water, preferably 0.1 parts by weight~1 parts by weight.
In the present invention, the B component includes crosslinking agent, tackifier and catalyst.In the present invention, the crosslinking agent tool There is general formula shown in formula (I):
(R1O)3-aR2 aSi-R3-SiR4 b(OR5)3-bFormula (I)
In formula (I), R1、R2、R4、R5It is independent to be selected from monovalent hydrocarbon；R3The bivalent hydrocarbon radical for being 2~20 for carbon atom number；A= 0 or 1, b=0 or 1；The crosslinking agent is that intramolecular at least contains and is free of between more than two alkoxy-functionals and silicon atom base Have an organic compound of silicon oxygen bond, bis- (trimethoxy silicon substrate) hexanes of preferably 1,6-, bis- (triethoxy silicon substrate) hexanes of 1,6-, 1,2- bis- trimethoxy silicon substrate ethane and 1, one of bis- triethoxy silicon substrate ethane of 2- or a variety of, more preferably 1,2- bis- three Methoxyl group silicon substrate ethane or bis- (trimethoxy silicon substrate) hexanes of 1,6-.The present invention does not have special limit to the source of the crosslinking agent System, using commercial goods well known to those skilled in the art or own product.In the present invention, the B component includes 8 weight The crosslinking agent of part~35 parts by weight, preferably 10 parts by weight~33 parts by weight.
In addition, the present invention can also preferably add methyl three well known to those skilled in the art in addition to above-mentioned crosslinking agent Methoxy silane, methyl triethylsilane, vinyltrimethoxysilane, isopropyltri-methoxysilane, three ethoxy of isopropyl One of base silane, trimethoxysilane, isobutyl triethoxy silane, methyl orthosilicate, ethyl orthosilicate or A variety of, to adjust crosslink density, curing rate etc., it is not specifically limited to this by the present invention.
In the present invention, the tackifier are prepared by amino coupling agent, epoxy group coupling agent and Si-N key compound. In the present invention, the amino coupling agent preferably includes aminopropyl trimethoxysilane, aminopropyl triethoxysilane, γ-ammonia Ethylaminopropyl trimethoxy silane, γ-aminoethylaminopropyl triethoxysilane, bis- [3- (triethoxysilicane) propyl] amine, Bis- (3- trimethoxy-silylpropyl) amine, bis- [3- (trimethoxy silicon substrate) propyl] ethylenediamines and bis- [3- (triethoxysilicanes Base) propyl] one of ethylenediamine or a variety of, more preferably aminopropyl trimethoxysilane.The present invention is to the amino coupled The source of agent is not particularly limited, using commercial goods well known to those skilled in the art or own product.
In the present invention, the epoxy group coupling agent preferably include γ-glycidyl ether oxygen propyl trimethoxy silicane, γ-glycidoxypropyltrietandysilane andysilane, γ-glycidyl ether oxygen propyl methyldiethoxysilane, γ-shrink are sweet One of oily ether oxygen propyl methyl dimethoxysilane and β-(3,4- 7-oxa-bicyclo[4.1.0) ethyl trimethoxy silane are a variety of, More preferably γ-glycidyl ether oxygen propyl trimethoxy silicane.The present invention is to the source of the epoxy group coupling agent without spy Different limitation, using commercial goods well known to those skilled in the art or own product.
In the present invention, the Si-N key compound preferably includes 2,2- diethoxy -1- (trimethylsilyl) -1- nitrogen Miscellaneous -2- silacyclopentan, 2- methoxyl group -2,4- dimethyl -1- azepine -2- silacyclopentan -1- ethamine, 2,2- diethoxy - 1- azepine -2- silacyclopentan, [1- (3- triethoxy silicon substrate) propyl] -2,2- diethoxy -1- azepine -2- silicon Polymorphs Alkane, nitrogen-(2- aminoethyl) -2,2,4- trimethyl -1- azepine -2- silacyclopentan, 2,2- dimethoxy -1- azepine -2- sila Pentamethylene -1- ethamine, N- trimethyl silicon substrate -3- TSL 8330 and N- trimethyl silicon substrate -3- aminopropyl three One of Ethoxysilane is a variety of, more preferably 2,2- diethoxy -1- (trimethylsilyl) -1- azepine -2- sila Pentamethylene or N- trimethyl silicon substrate -3- TSL 8330.The present invention does not have the source of the Si-N key compound Have it is specifically limited, using commercial goods well known to those skilled in the art or own product.The present invention uses Si-N key chemical combination Object, intramolecular is at least containing one or more Si-N keys and the nitrogen-atoms is linked to by the carbochain of more than one carbon atom and is contained Have on the silicon atom of more than one alkoxy, the performance of tackifier can be significantly improved.
In the present invention, the preparation method of the tackifier is preferred specifically:
Be 1:2:(0.2~3 by molar ratio) amino coupling agent, after epoxy group coupling agent and Si-N key compound mix, 48h~120h is reacted at 20 DEG C~60 DEG C, obtains tackifier；
More preferably:
Be 1:2:(0.5~1 by molar ratio) amino coupling agent, after epoxy group coupling agent and Si-N key compound mix, 110h is reacted at 50 DEG C, obtains tackifier.
In the present invention, the B component includes 1 parts by weight~20 parts by weight tackifier, preferably 3 parts by weight~10 weights Measure part.
In addition, the present invention under the premise of not interfering purpose properties of product, can also preferably add those skilled in the art Well known other coupling agents such as α, ω-trimethylsiloxy group dimethyl silicone polymer, aminopropyl trimethoxysilane, aminopropyl three Ethoxysilane, γ-aminoethyl amino propyl trimethoxy silane, bis- [3- (triethoxysilicane) propyl] amine, bis- (3- trimethoxies Silylpropyl) amine, bis- [3- (trimethoxy silicon substrate) propyl] ethylenediamines, bis- [3- (triethoxy silicon substrate) propyl] second two Amine, γ-methacryloxypropyl trimethoxy silane, γ-glycidyl ether oxygen propyl trimethoxy silicane, make product more Add the sealing suitable for different type product；Its additive amount is preferably 0~10 parts by weight, more preferably 3 parts by weight~5 weight Part.
In the present invention, the catalyst preferably includes dibutyl tin dilaurate, tin dilaurate dioctyl tin, the two pungent last of the ten Heavenly stems One of sour stannous methide and dibutyltin diacetate are a variety of, more preferably dibutyl tin dilaurate or two pungent capric acid two Methyl tin.The present invention is not particularly limited the source of the catalyst, using commercial goods well known to those skilled in the art ?.In the present invention, in the present invention, the B component includes 0.1 parts by weight~1 parts by weight catalyst, and preferably 0.2 Parts by weight~0.5 parts by weight.
In the present invention, the B component it is also preferable to include:
0~100 parts by weight of white carbon black, more preferably 5 parts by weight~20 parts by weight.In the present invention, the white carbon black is excellent Choosing is selected from gas-phase silica and/or precipitated silica, more preferably gas-phase silica.In the present invention, the ratio of the white carbon black Surface area is preferably 150m2/ g~200m2/g。
In the present invention, the B component it is also preferable to include:
0~100 parts by weight of mill base, more preferably 20 parts by weight~61 parts by weight.In the present invention, the mill base plays tune The effect of color, those skilled in the art can select the color of mill base according to actual use demand, such as black color paste, white color Slurry and silver color mill base；In the preferred embodiment of the invention, the mill base is black color paste.Source of the present invention to the mill base There is no special limitation, using commercial goods well known to those skilled in the art or own product.In addition, the present invention can be with It is mixed colours by directly adding mill base raw material such as carbon black.In the preferred embodiment of the invention, the B component further includes 10 weights Measure the carbon black of part.
In the present invention, the component A and B component are uniformly mixed according to above-mentioned special ratios, it may occur that condensed type crosslinking Reaction, is sulfided into rubber elastomer；Dealcoholized type bi-component sealant provided by the invention uses certain content component, realizes preferable Interaction, make product have to a variety of substrates, especially to solar photovoltaic assembly such as photovoltaic cell glass, aluminium side Frame, backboard, terminal box, the various plastics of the vehicle lamp assembly of automobile, the potting of LED display module and glass for building Glass, the durability that curtain wall component etc. has excellent adhesion and is bonded, waterproof and dampproof performance have long-term storage simultaneously Stability.
The present invention also provides a kind of preparation methods of dealcoholized type bi-component sealant described in above-mentioned technical proposal, including Following steps:
A) hydroxyl endblocked polydimethylsiloxane and solid packing are uniformly mixed, obtain component A；
B) crosslinking agent, tackifier and catalyst are stirred until homogeneous under vacuum, obtain B component；
C) component A that step a) is obtained is mixed with the obtained B component of step b), obtains the sealing of dealcoholized type bi-component Glue；
The step a) and step b) is limited without sequence.
Hydroxyl endblocked polydimethylsiloxane and solid packing are uniformly mixed by the present invention first, obtain component A.In this hair In bright, base sealing end dimethyl silicone polymer and solid packing with it is as described in the above technical scheme identical, no longer go to live in the household of one's in-laws on getting married herein It states.
The present invention is not particularly limited the mixed mode, using artificial stirring well known to those skilled in the art or Churned mechanically technical solution.The present invention is not particularly limited the mixed temperature and time, and ability such as can be used Temperature known to field technique personnel is 100 DEG C of <, the time is 2h~4h, can guarantee to be uniformly mixed.Of the invention preferred Embodiment in, the component A further includes other raw materials as described in the above technical scheme, using side described in above-mentioned steps a) Formula is mixed to uniformly.
Meanwhile crosslinking agent, tackifier and catalyst are stirred until homogeneous by the present invention under vacuum, obtain B component.In this hair In bright, the crosslinking agent, tackifier and catalyst with it is as described in the above technical scheme identical, details are not described herein.
In the present invention, the pressure of the vacuum is preferably -0.09MPa~-0.1MPa.In the present invention, the stirring Revolving speed be preferably 20r/min~40r/min, more preferably 25r/min~30r/min；The temperature of the stirring is preferably 10 DEG C~69 DEG C, more preferably 20 DEG C~40 DEG C；The time of the stirring is preferably 20min~60min, and more preferably 30min~ 40min。
In the preferred embodiment of the invention, the B component further includes other raw materials as described in the above technical scheme, is adopted The mode described in above-mentioned steps b) is stirred to uniformly.
In the present invention, it is described be stirred until homogeneous after, it is also preferable to include:
Vacuum defoamation processing is carried out to obtained mixture, obtains B component.
After obtaining the component A and B component, the present invention mixes obtained component A and B component, obtains dealcoholized type Bi-component sealant.
In addition, preparation method provided by the invention is easy to operate, mild condition, it is suitable for large-scale production and application.
Be 100:(2~20 including mass ratio the present invention provides a kind of dealcoholized type bi-component sealant) component A and B Component；The component A includes: 100 parts by weight of hydroxyl endblocked polydimethylsiloxane；5 parts by weight of solid packing~150 weight Part；The B component includes: 8 parts by weight of crosslinking agent~35 parts by weight；1 parts by weight of tackifier~20 parts by weight；0.1 weight of catalyst Measure part~1 part；The crosslinking agent has general formula: (R1O)3-aR2 aSi-R3-SiR4 b(OR5)3-b；Wherein, R1、R2、R4、R5It is independent Selected from monovalent hydrocarbon；R3The bivalent hydrocarbon radical for being 2~20 for carbon atom number；A=0 or 1, b=0 or 1；The tackifier are by amino idol Connection agent, epoxy group coupling agent and Si-N key compound are prepared.Compared with prior art, the double groups of dealcoholized type provided by the invention Point sealant uses certain content component, realizes preferable interaction, make product have good adhesive property, durability, Leakproofness and long-term storage stability, suitable for photovoltaic module, motor vehicle assembly, electronic apparatus and glass for building, The sealing such as curtain wall component.
In addition, preparation method provided by the invention is easy to operate, mild condition, it is suitable for large-scale production and application.
In order to further illustrate the present invention, it is described in detail below by following embodiment.Following embodiment of the present invention Raw materials used is commercial goods or own product；Black color paste used in it the preparation method comprises the following steps: silicone oil and carbon black are pressed It is mixed according to weight ratio 3:1, under conditions of the pressure of 100~150 DEG C, vacuum dehydration is -0.09~-0.1MPa, high-speed stirred Disperse 3~4h, obtains black color paste.
Embodiment 1
(1) component A: being 20000mm by kinematic viscosity2The α of/s, 100 parts by weight of alpha, omega-dihydroxy polydimethyl siloxane, 100 parts by weight of nanometer calcium carbonate through fatty acid treatment, specific surface area 150m25 parts by weight of gas-phase silica of/g and movement Viscosity 350mm25 parts by weight of dimethicone of/s are mixed the A group that dealcoholized type bi-component sealant is obtained to stirring evenly Point.
(2) B component: 20 parts by weight of black color paste and bis- 13 parts by weight of trimethoxy silicon substrate ethane of 1,2- are mixed first It closes, after stirring 10~20min, addition specific surface area is 150m210 parts by weight of gas-phase silica of/g, high speed dispersion 30~ It is (sweet for the aminopropyl trimethoxysilane of 1:2:0.5, γ-shrink by molar ratio to add tackifier to being uniformly dispersed by 40min Oily ether oxygen propyl trimethoxy silicane and the mixing of 2,2- diethoxy -1- (trimethylsilyl) -1- azepine -2- silacyclopentan It is made afterwards in 50 DEG C of reaction 110h) 0.5 parts by weight of 3 parts by weight and catalyst (dibutyl tin dilaurate), be in pressure
The vacuum state of -0.09~-0.1MPa, revolving speed 25r/min, at 20~40 DEG C 30~40min of stirring to uniform, Obtain the B component of dealcoholized type bi-component sealant.
(3) above-mentioned component A and B component are mixed with the mass ratio of 100:10, obtains dealcoholized type bi-component sealant.
Embodiment 2
(1) component A: by α, alpha, omega-dihydroxy polydimethyl siloxane (kinematic viscosity 20000mm2The α of/s, ω-dihydroxy Base dimethyl silicone polymer and kinematic viscosity are 80000mm2The α of/s, alpha, omega-dihydroxy polydimethyl siloxane 1:1 in mass ratio Mixing) 100 parts by weight, 100 parts by weight of nanometer calcium carbonate through fatty acid treatment and kinematic viscosity 350mm2The dimethyl-silicon of/s Oily 10 parts by weight are mixed the component A that dealcoholized type bi-component sealant is obtained to stirring evenly.
(2) B component: bis- 33 parts by weight of (trimethoxy silicon substrate) hexane of 61 parts by weight of black color paste and 1,6- are carried out first Mixing, after stirring 10~20min, for 30~40min of high speed dispersion to being uniformly dispersed, adding tackifier (is 1:2:1 by molar ratio Aminopropyl trimethoxysilane, γ-glycidyl ether oxygen propyl trimethoxy silicane and 2,2- diethoxy -1- (trimethyl Silylation) obtained in 50 DEG C of reaction 110h after the mixing of -1- azepine -2- silacyclopentan) 6 parts by weight, γ-aminoethylaminopropyl three 3 parts by weight of methoxy silane and catalyst (two pungent capric acid stannous methides) 0.2 parts by weight are -0.09~-0.1MPa's in pressure Vacuum state, revolving speed 25r/min, 30~40min of stirring obtains dealcoholized type bi-component sealant to uniform at 20~40 DEG C The B component of (to construction substrate adhesion type).
(3) above-mentioned component A and B component are mixed with the mass ratio of 120:10, obtains dealcoholized type bi-component sealant.
Embodiment 3
(1) component A: being 5000mm by kinematic viscosity2The α of/s, 100 parts by weight of alpha, omega-dihydroxy polydimethyl siloxane, warp 40 parts by weight of powdered whiting of 100 parts by weight of nanometer calcium carbonate and the no fatty acids processing of fatty acid treatment are mixed to stirring It mixes uniformly, obtains the component A of dealcoholized type bi-component sealant.
(2) B component: being first 5000mm by kinematic viscosity2The α of/s, ω-trimethylsiloxy group dimethyl silicone polymer 50 Parts by weight, 10 parts by weight of carbon black and 1, bis- 30 parts by weight of (trimethoxy silicon substrate) hexane of 6- are mixed, and 10~20min is stirred Afterwards, 30~40min of high speed dispersion adds tackifier (the aminopropyl trimethoxy silicon for being 1:2:1 by molar ratio to being uniformly dispersed Alkane, γ-glycidyl ether oxygen propyl trimethoxy silicane and 2,2- diethoxy -1- (trimethylsilyl) -1- azepine -2- silicon It is made after the mixing of heterocycle pentane in 50 DEG C of reaction 110h) 10 parts by weight, 5 parts by weight of γ-aminoethyl amino propyl trimethoxy silane With catalyst (two pungent capric acid stannous methides) 0.1 parts by weight, it is in vacuum state that pressure is -0.09~-0.1MPa, revolving speed 25r/min, 30~40min of stirring obtains the B component of dealcoholized type bi-component sealant to uniform at 20~40 DEG C.
(3) above-mentioned component A and B component are mixed with the mass ratio of 100:10, obtains dealcoholized type bi-component sealant.
Embodiment 4
(1) component A: being 3000mm by kinematic viscosity2The α of/s, 100 parts by weight of alpha, omega-dihydroxy polydimethyl siloxane, stone 40 parts by weight of English powder, kinematic viscosity 350mm220 parts by weight of dimethicone and 0.2 parts by weight of water of/s are mixed to stirring It mixes uniformly, obtains the component A of dealcoholized type bi-component sealant.
(2) B component: in bis- 10 parts by weight of (trimethoxy silicon substrate) hexane of 1,6- be added tackifier (by molar ratio be 1: Aminopropyl trimethoxysilane, γ-glycidyl ether oxygen propyl trimethoxy silicane and the N- trimethyl silicon substrate -3- ammonia of 2:0.5 It is made after the mixing of base propyl-triethoxysilicane in 50 DEG C of reaction 110h) 6.5 parts by weight, γ-aminoethylaminopropyl trimethoxy 3.5 parts by weight of silane and catalyst (two pungent capric acid stannous methides) 0.5 parts by weight, in the vacuum that pressure is -0.09~-0.1MPa State, revolving speed 30r/min, 30~40min of stirring obtains dealcoholized type bi-component sealant (to light to uniform at 20~40 DEG C Lie prostrate gum base materials adhesion type) B component.
(3) above-mentioned component A and B component are mixed with the mass ratio of 40:1, obtains dealcoholized type bi-component sealant.
Comparative example 1
(1) component A: being 20000mm by kinematic viscosity2The α of/s, 100 parts by weight of alpha, omega-dihydroxy polydimethyl siloxane, 100 parts by weight of nanometer calcium carbonate through fatty acid treatment, specific surface area 150m25 parts by weight of gas-phase silica of/g and movement Viscosity 350mm25 parts by weight of dimethicone of/s are mixed the A group that dealcoholized type bi-component sealant is obtained to stirring evenly Point.
(2) B component: 20 parts by weight of black color paste and bis- 13 parts by weight of trimethoxy silicon substrate ethane of 1,2- are mixed first It closes, after stirring 10~20min, addition specific surface area is 150m210 parts by weight of gas-phase silica of/g, high speed dispersion 30~ 40min adds 0.5 parts by weight of catalyst (dibutyl tin dilaurate) to being uniformly dispersed, pressure be -0.09~- The vacuum state of 0.1MPa, revolving speed 25r/min, 30~40min of stirring obtains dealcoholized type bi-component to uniform at 20~40 DEG C The B component of sealant.
(3) above-mentioned component A and B component are mixed with the mass ratio of 100:10, obtains dealcoholized type bi-component sealant.
Comparative example 2
(1) component A: by α, alpha, omega-dihydroxy polydimethyl siloxane (kinematic viscosity 20000mm2The α of/s, ω-dihydroxy Base dimethyl silicone polymer and kinematic viscosity are 80000mm2The α of/s, alpha, omega-dihydroxy polydimethyl siloxane 1:1 in mass ratio Mixing) 100 parts by weight, 100 parts by weight of nanometer calcium carbonate through fatty acid treatment and kinematic viscosity 350mm2The dimethyl-silicon of/s Oily 10 parts by weight are mixed the component A that dealcoholized type bi-component sealant is obtained to stirring evenly.
(2) B component: 33 parts by weight of oligomer of three ethoxy silane of 61 parts by weight of black color paste and methyl are mixed first It closes, after stirring 10~20min, 30~40min of high speed dispersion adds tackifier (aminopropyl trimethoxy silicon to being uniformly dispersed Alkane) 6 parts by weight and catalyst (two pungent capric acid stannous methides) 0.2 parts by weight, in the vacuum shape that pressure is -0.09~-0.1MPa State, revolving speed 25r/min, 30~40min of stirring obtains dealcoholized type bi-component sealant (to building to uniform at 20~40 DEG C Substrate bonding type) B component.
(3) above-mentioned component A and B component are mixed with the mass ratio of 120:10, obtains dealcoholized type bi-component sealant.
Comparative example 3
(1) component A: being 3000mm by kinematic viscosity2The α of/s, 40 parts by weight of alpha, omega-dihydroxy polydimethyl siloxane, stone 40 parts by weight of English powder, kinematic viscosity 350mm220 parts by weight of dimethicone and 0.2 parts by weight of water of/s are mixed to stirring It mixes uniformly, obtains the component A of dealcoholized type bi-component sealant.
(2) B component: by 10 parts by weight of oligomer of ethyl orthosilicate, 10 weight of γ-aminoethyl amino propyl trimethoxy silane Part and catalyst (two pungent capric acid stannous methides) 0.5 parts by weight are measured, in vacuum state, the revolving speed that pressure is -0.09~-0.1MPa To stir 30~40min at 25r/min, 20~40 DEG C to uniform, it is (viscous to photovoltaic gum base materials to obtain dealcoholized type bi-component sealant Direct type) B component.
(3) above-mentioned component A and B component are mixed with the mass ratio of 40:1, obtains dealcoholized type bi-component sealant.
To curing performance, the initial bond of the dealcoholized type bi-component sealant that Examples 1 to 4 and comparative example 1~3 provide Property, bonding persistence and the anti-originality of resistance to vulcanization tested, the specific method is as follows:
Viscosity is measured at 25 degree.
Initial bond: glass plate, metal plate (aluminium, stainless steel, copper sheet) and plastic plate (ethylene chloride resin, PC, PMC etc.) surface on dealcoholized type bi-component sealing glue extrusion is linear, solidified under conditions of 25 DEG C, humidity 50%, put It sets 3 days；Then from cured colloid one end with pull make colloid remove substrate, measure cementability；Measurement result is with side below Method indicates:
Zero print: organosilicon colloid fracture (agglutination destructive rate 100%)；
△ print: the interface peel (agglutination destructive rate 50~99%) of some organosilicon colloid layer and substrate；
× print: the interface peel (agglutination destructive rate 0~49%) of big a part of organosilicon colloid layer and substrate.
Bonding persistence: glass plate, metal plate (aluminium, stainless steel, copper sheet) and plastic plate (ethylene chloride resin, PC, PMC etc.) surface on dealcoholized type bi-component sealing glue extrusion is linear, solidified under conditions of 25 DEG C, humidity 50%, put It sets 3 days；Then test body is put into 25 DEG C of water and is placed 3 days；Then test body is taken out from water, then from cured colloid One end makes colloid and strippable substrate with pulling, and measures cementability；Measurement result is indicated with the following method:
Zero print: organosilicon colloid fracture (agglutination destructive rate 100%)；
△ print: the interface peel (agglutination destructive rate 50~99%) of some organosilicon colloid layer and substrate；
× print: the interface peel (agglutination destructive rate 0~49%) of big a part of organosilicon colloid layer and substrate.
The resistance to anti-originality of vulcanization: A and B component are filled into after mixing in 20mL plastic containers until 2cm height, 25 DEG C, humidity is placed under conditions of being 50% to be solidified for 24 hours；Then it closes the lid, at 85 DEG C, humidity is placed under conditions of being 85% One week；It is cooled to room temperature, carries out hardness test according to GB/T 528-1998 testing standard；The hardness number measured is that zero standard is denoted as It is bad, in addition to this labeled as good.
After tested, the curing performance for the dealcoholized type bi-component sealant that Examples 1 to 4 and comparative example 1~3 provide, initial stage The data of cementability, bonding persistence and the resistance to anti-originality of vulcanization are referring to shown in table 1~2.
The curing performance for the dealcoholized type bi-component sealant that 1 Examples 1 to 4 of table and comparative example 1~3 provide and initial stage are viscous Connecing property data
The bonding persistence and resistant to sulfur for the dealcoholized type bi-component sealant that 2 Examples 1 to 4 of table and comparative example 1~3 provide Change anti-immunogenicity data
By table 1~2 it is found that there is the dealcoholized silicone rubber sealant that the embodiment of the present invention 1~4 provides preferable greenhouse to consolidate Change performance and long-term storage stability, and it is excellent in adhesion, bonding persistence is good；To metal after solidification, as stainless steel, The materials such as aluminium, copper, aluminium oxide etc., various plastics such as PC/PP etc., ceramics, glass all have good caking property, can be used in light Lie prostrate component, building and the sealing such as automobile and electronic apparatus.
The above description of the disclosed embodiments, enables those skilled in the art to implement or use the present invention.It is right A variety of modifications of these embodiments will be readily apparent to those skilled in the art, and as defined herein one As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will It will not be intended to be limited to the embodiments shown herein, and be to fit to consistent with the principles and novel features disclosed herein Widest scope.

Claims (10)

  1. Be 100:(2~20 including mass ratio 1. a kind of dealcoholized type bi-component sealant) component A and B component；
    The component A includes:
    100 parts by weight of hydroxyl endblocked polydimethylsiloxane；
    5 parts by weight of solid packing~150 parts by weight；
    The B component includes:
    8 parts by weight of crosslinking agent~35 parts by weight；
    1 parts by weight of tackifier~20 parts by weight；
    0.1 parts by weight~1 part of catalyst；
    The crosslinking agent has general formula shown in formula (I):
    (R1O)3-aR2 aSi-R3-SiR4 b(OR5)3-bFormula (I)
    In formula (I), R1、R2、R4、R5It is independent to be selected from monovalent hydrocarbon；R3The bivalent hydrocarbon radical for being 2~20 for carbon atom number；A=0 or 1, b=0 or 1；
    The tackifier are prepared by amino coupling agent, epoxy group coupling agent and Si-N key compound.
  2. 2. dealcoholized type bi-component sealant according to claim 1, which is characterized in that the hydroxy-end capped poly dimethyl silicon Oxygen alkane has general formula shown in formula (II):
    HO-(SiMe2O)nSiMe2OH formula (II)；
    In formula (II), n is the kinematic viscosity 200mm for making the hydroxyl endblocked polydimethylsiloxane at 25 DEG C2/ s~ 1000000mm2Positive number when/s.
  3. 3. dealcoholized type bi-component sealant according to claim 1, which is characterized in that the solid packing includes carbonic acid Calcium, white carbon black, quartz powder, hollow glass micro-ball, diatomite, titanium dioxide, aluminium hydroxide, aluminium oxide, zinc oxide, oxidation Magnesium aoxidizes sub- one of zinc and carbonic acid Asia zinc or a variety of.
  4. 4. dealcoholized type bi-component sealant according to claim 1, which is characterized in that the preparation method of the tackifier has Body are as follows:
    Be 1:2:(0.2~3 by molar ratio) amino coupling agent, after epoxy group coupling agent and Si-N key compound mix, 20 DEG C~60 DEG C at react 48h~120h, obtain tackifier.
  5. 5. dealcoholized type bi-component sealant according to claim 1, which is characterized in that the amino coupling agent includes ammonia third Base trimethoxy silane, aminopropyl triethoxysilane, γ-aminoethyl amino propyl trimethoxy silane, γ-aminoethylaminopropyl Triethoxysilane, bis- [3- (triethoxysilicane) propyl] amine, bis- (3- trimethoxy-silylpropyl) amine, bis- [3- (front threes Oxygroup silicon substrate) propyl] one of ethylenediamine and bis- [3- (triethoxy silicon substrate) propyl] ethylenediamines or a variety of.
  6. 6. dealcoholized type bi-component sealant according to claim 1, which is characterized in that the epoxy group coupling agent includes γ-glycidyl ether oxygen propyl trimethoxy silicane, γ-glycidoxypropyltrietandysilane andysilane, γ-glycidol ether Oxygen propyl group methyldiethoxysilane, γ-glycidyl ether oxygen propyl methyl dimethoxysilane and β-(3,4- epoxy hexamethylene Alkane) one of ethyl trimethoxy silane or a variety of.
  7. 7. dealcoholized type bi-component sealant according to claim 1, which is characterized in that the Si-N key compound includes 2, 2- diethoxy -1- (trimethylsilyl) -1- azepine -2- silacyclopentan, 2- methoxyl group -2,4- dimethyl -1- azepine -2- Silacyclopentan -1- ethamine, 2,2- diethoxy -1- azepine -2- silacyclopentan, [1- (3- triethoxy silicon substrate) propyl] - 2,2- diethoxy -1- azepine -2- silacyclopentan, nitrogen-(2- aminoethyl) -2,2,4- trimethyl -1- azepine -2- silicon Polymorphs Alkane, 2,2- dimethoxy -1- azepine -2- silacyclopentan -1- ethamine, N- trimethyl silicon substrate -3- aminopropyl trimethoxy silicon One of alkane and N- trimethyl silicon substrate -3-aminopropyltriethoxysilane are a variety of.
  8. 8. dealcoholized type bi-component sealant according to claim 1, which is characterized in that the catalyst includes tin dilaurate One of dibutyl tin, tin dilaurate dioctyl tin, two pungent capric acid stannous methides and dibutyltin diacetate are a variety of.
  9. 9. a kind of preparation method of dealcoholized type bi-component sealant according to any one of claims 1 to 8, comprising the following steps:
    A) hydroxyl endblocked polydimethylsiloxane and solid packing are uniformly mixed, obtain component A；
    B) crosslinking agent, tackifier and catalyst are stirred until homogeneous under vacuum, obtain B component；
    C) component A that step a) is obtained is mixed with the obtained B component of step b), obtains dealcoholized type bi-component sealant；
    The step a) and step b) is limited without sequence.
  10. 10. preparation method according to claim 9, which is characterized in that the revolving speed of stirring described in step b) is 20r/min ~40r/min, temperature are 10 DEG C~69 DEG C, and the time is 20min~60min.
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CN112662370B (en) * 2020-12-16 2022-10-28 江西晨光新材料股份有限公司 Single-component dealcoholized silicone sealant and preparation method thereof
CN113717684A (en) * 2021-09-23 2021-11-30 广州以恒有机硅有限公司 Low-modulus silicone weather-resistant sealant and preparation method thereof
CN114031314A (en) * 2021-11-16 2022-02-11 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） Ultrahigh vacuum non-magnetic sealing method for quartz glass metal
CN114507503A (en) * 2022-01-14 2022-05-17 杭州之江有机硅化工有限公司 Low-modulus high-elongation two-component organosilicon sealant and application thereof
CN114507504A (en) * 2022-01-14 2022-05-17 杭州之江有机硅化工有限公司 Low-modulus high-elongation single-component organosilicon sealant and application thereof
CN114507504B (en) * 2022-01-14 2023-12-29 杭州之江有机硅化工有限公司 Low-modulus high-elongation single-component organic silicon sealant and application thereof
CN114507503B (en) * 2022-01-14 2024-01-26 杭州之江有机硅化工有限公司 Low-modulus high-elongation two-component organic silicon sealant and application thereof
CN115322572A (en) * 2022-08-11 2022-11-11 深圳市泰科科技有限公司 Flame-retardant and fireproof silicon rubber material for cable and preparation method thereof

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