CN108219740A - A kind of conducting adhesive silicon rubber and preparation method thereof - Google Patents
A kind of conducting adhesive silicon rubber and preparation method thereof Download PDFInfo
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- CN108219740A CN108219740A CN201611142271.6A CN201611142271A CN108219740A CN 108219740 A CN108219740 A CN 108219740A CN 201611142271 A CN201611142271 A CN 201611142271A CN 108219740 A CN108219740 A CN 108219740A
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- silicon rubber
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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
- C09J183/06—Polysiloxanes containing silicon bound to oxygen-containing groups
-
- 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
- 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
-
- 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
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- 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
-
- 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
-
- 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
Abstract
The invention discloses a kind of conducting adhesive silicon rubber and preparation method thereof, the conducting adhesive silicon rubber is prepared by the raw material of following parts by weight：100 parts of α, ω dialkyl polydimethylsiloxane, 0 10 parts of plasticizer, 40 120 parts of nm-class active calcium carbonate conductive powder, 1 20 parts of hydroxyl scavenger, 16 parts of crosslinking agent, 0.1 1 parts of coupling agent, 0.5 4 parts of catalyst.The conducting adhesive silicon rubber of the present invention can effectively absorb the water and alcohol to dissociate in sizing material, therefore can greatly improve the storage stability of sizing material, solve the problems, such as that conducting adhesive silicon rubber curability during storage declines.
Description
Technical field
The invention belongs to conducting adhesive technical field, more particularly to a kind of conducting adhesive silicon rubber and preparation method thereof.
Background technology
Single-component de-alcoholized room temperature vulcanized silicone rubber（RTV-1）A certain amount of free alcohol, glue can be mixed with during storage
The source one of free alcohol is the alkoxy silane cross linked dose of water brought into other components in material, second is that Si-OH bases react what is formed.
Since in the presence of organo-metallic catalyst with polysiloxanes equilibration reaction occurs for the free alcohol in sizing material, no friendship is formd
Join (the CH of function3O )(CH3) 2Si 1/2End group, leads to the curability of dealcoholized type RTV-1 can decline in storage, even
It loses.
Invention content
For this purpose, the technical problem to be solved in the present invention is above-mentioned single-component de-alcoholized room temperature vulcanized silicone rubber is overcome to deposit
Storage is existing upper defect, and then provides a kind of conducting adhesive silicon rubber and preparation method thereof, which effectively improves existing
The state of the art of dealcoholized type RTV-1 poor storage stabilities.
To achieve the above object, the present invention uses following technical scheme：
A kind of conducting adhesive silicon rubber, is prepared by the raw material of following parts by weight：
α, 100 parts of alpha, omega-dihydroxy polydimethyl siloxane
0-10 parts of plasticizer
40-120 parts of nm-class active calcium carbonate conductive powder
1-20 parts of hydroxyl scavenger
1-6 parts of crosslinking agent
0.1-1 parts of coupling agent
0.5-4 parts of catalyst.
Further, the conducting adhesive silicon rubber, is prepared by the raw material of following parts by weight：
α, 100 parts of alpha, omega-dihydroxy polydimethyl siloxane
2-5 parts of plasticizer
60-100 parts of nm-class active calcium carbonate conductive powder
2-10 parts of hydroxyl scavenger
2-4 parts of crosslinking agent
0.2-0.8 parts of coupling agent
1-2 parts of catalyst.
Further, the plasticizer is the one or more of dimethicone, MDT silicone oil, monohydroxy silicone oil.
Further, the conductive powder is one or more of alundum (Al2O3), boron nitride, aluminium nitride.
Further, the hydroxyl scavenger is one or more of zeolite powder, magnesium chloride powder, calcium chloride powder.
Further, the crosslinking agent is methyltrimethoxysilane, in methyl orthosilicate, propyl trimethoxy silicane
It is one or more kinds of.
Further, the coupling agent is γ-(2,3- the third oxygen of epoxy) propyl trimethoxy silicane, γ-aminopropyl front three
Oxysilane, gamma-aminopropyl-triethoxy-silane, glycidyl trimethoxy silane, isocyanate group propyl trimethoxy silicon
One or more of alkane, isocyanate group propyl-triethoxysilicane, vinyltrimethoxysilane.
Further, chelate of the catalyst for the ethyl acetoacetate of isopropyl titanate.
Further, the α, alpha, omega-dihydroxy polydimethyl siloxane are that viscosity is 1500~50000Pa.s at 25 DEG C
α, alpha, omega-dihydroxy polydimethyl siloxane
A kind of method for being used to prepare above-mentioned conducting adhesive silicon rubber, includes the following steps：
（1）, by α, alpha, omega-dihydroxy polydimethyl siloxane, plasticizer, nm-class active calcium carbonate conductive powder 120- in kneader
150 DEG C of stirring 2-4h, vacuumize, obtain base material A；
（2）, hydroxyl scavenger is dehydrated at 300 DEG C to activation 3-6h, room temperature is cooled under vacuum, by α, alpha, omega-dihydroxy poly- two
Methylsiloxane, hydroxyl scavenger the 120-150 DEG C of stirring 2-4h in kneader, vacuumize, obtain base-material B；
（3）, under vacuum conditions, crosslinking agent, coupling agent, base material A and base-material B are stirred to react 10-30 minutes；Then it adds in and urges
Agent is stirred to react 20-60 minutes to get finished product.
The conducting adhesive silicon rubber of the present invention at least has the advantages that：
The conducting adhesive silicon rubber of the present invention,, can be effective by high temperature dehydration activation process due to being added to hydroxyl scavenger
Ground absorb sizing material in dissociate water and alcohol, therefore the present invention conducting adhesive silicon rubber in the case of storage, can be greatly
The storage stability of sizing material is improved, solve thes problems, such as that conducting adhesive silicon rubber curability during storage declines.
Specific embodiment
Embodiment 1
The kind conducting adhesive silicon rubber of this example is prepared by the raw material of following parts by weight：
α of the viscosity for 1500 Pa.s, 100 parts of alpha, omega-dihydroxy polydimethyl siloxane
Viscosity is the dimethicone of 50 Pa.s（Plasticizer）5 parts
120 parts of nm-class active calcium carbonate conductive powder
Zeolite powder（Hydroxyl scavenger）5 parts
Methyltrimethoxysilane（Crosslinking agent）3 parts
γ-(the third oxygen of 2,3- epoxies) 0.5 part of propyl trimethoxy silicane (coupling agent)
1.5 parts of the chelate (catalyst) of the ethyl acetoacetate of isopropyl titanate
Above-mentioned raw materials according to following steps are processed and are prepared：
（1）, by α, alpha, omega-dihydroxy polydimethyl siloxane, plasticizer, nm-class active calcium carbonate conductive powder are 120 in kneader
DEG C stirring 4h, vacuumize, obtain base material A；
（2）, hydroxyl scavenger is dehydrated at 300 DEG C to activation 4h, be cooled to room temperature under vacuum；By α, the poly- diformazan of alpha, omega-dihydroxy
Radical siloxane, hydroxyl scavenger 120 DEG C of stirring 2h in kneader, vacuumize, obtain base-material B；
（3）, under vacuum conditions, by crosslinking agent methyltrimethoxysilane, coupling agent γ-(2,3- the third oxygen of epoxy) propyl front three
Oxysilane, base material A and base-material B are stirred to react 20 minutes；Then the ethyl acetoacetate of catalyst Ti isopropyl propionate is added in
Chelate is stirred to react 60 minutes to get finished product.
Embodiment 2
The conducting adhesive silicon rubber of this example is prepared by the raw material of following parts by weight：
α of the viscosity for 5000 Pa.s, 100 parts of alpha, omega-dihydroxy polydimethyl siloxane
Viscosity 2 is 350 Pa.s methyl-silicone oils（Plasticizer）5 parts
110 parts of nm-class active calcium carbonate conductive powder
Zeolite powder（Hydroxyl scavenger）2 parts
Magnesium chloride（Hydroxyl scavenger）5 parts
Methyltrimethoxysilane（Crosslinking agent）3 parts
0.2 part of gamma-aminopropyl-triethoxy-silane (coupling agent)
γ-(the third oxygen of 2,3- epoxies) 0.2 part of propyl trimethoxy silicane (coupling agent)
1.2 parts of the chelate (catalyst) of the ethyl acetoacetate of isopropyl titanate
Above-mentioned raw materials according to following steps are processed and are prepared：
（1）, by α, alpha, omega-dihydroxy polydimethyl siloxane, plasticizer methyl-silicone oil, nm-class active calcium carbonate conductive powder are being mediated
130 DEG C of stirring 3h, vacuumize, obtain base material A in machine；
（2）, hydroxyl scavenger is dehydrated at 300 DEG C to activation 6h, room temperature is cooled under vacuum, by α, the poly- diformazan of alpha, omega-dihydroxy
Radical siloxane, hydroxyl scavenger 120 DEG C of stirring 2h in kneader, vacuumize, obtain base-material B；
（3）, under vacuum conditions, crosslinking agent, coupling agent, base material A and base-material B are stirred to react 15 minutes；Then catalysis is added in
Agent is stirred to react 40 minutes to get finished product.
Embodiment 3
The conducting adhesive silicon rubber of this example is prepared by the raw material of following parts by weight：
α of the viscosity for 20000 Pa.s, 100 parts of alpha, omega-dihydroxy polydimethyl siloxane
Viscosity is the methyl-silicone oil of 500 Pa.s（Plasticizer）5 parts
100 parts of nm-class active calcium carbonate conductive powder
Zeolite powder（Hydroxyl scavenger）2 parts
Calcium chloride（Hydroxyl scavenger）2 parts
Methyltrimethoxysilane（Crosslinking agent）2.5 part
0.1 part of isocyanate group propyl trimethoxy silicane (coupling agent)
γ-(the third oxygen of 2,3- epoxies) 0.2 part of propyl trimethoxy silicane (coupling agent)
1.2 parts of the chelate (catalyst) of the ethyl acetoacetate of isopropyl titanate
Above-mentioned raw materials are prepared into product according to following steps：
（1）, by α, alpha, omega-dihydroxy polydimethyl siloxane, plasticizer, nm-class active calcium carbonate conductive powder are 130 in kneader
DEG C stirring 3h, vacuumize, obtain base material A；
（2）, hydroxyl scavenger is dehydrated at 300 DEG C to activation 6h, be cooled to room temperature under vacuum；By α, the poly- diformazan of alpha, omega-dihydroxy
Radical siloxane, hydroxyl scavenger 150 DEG C of stirring 2h in kneader, vacuumize, obtain base-material B；
（3）, under vacuum conditions, by crosslinking agent methyltrimethoxysilane, coupling agent isocyanate group propyl trimethoxy silicon
Alkane, base material A and base-material B are stirred to react 15 minutes；Then the chelate of the ethyl acetoacetate of catalyst Ti isopropyl propionate is added in
60 minutes are stirred to react to get finished product.
Above-mentioned specific embodiment is only explained in detail technical scheme of the present invention, the present invention not only only office
Be limited to above-described embodiment, it will be understood by those skilled in the art that it is every according to above-mentioned principle and spirit on the basis of the present invention
It improves, substitute, it all should be within protection scope of the present invention.
Claims (10)
1. a kind of conducting adhesive silicon rubber, it is characterised in that：It is prepared by the raw material of following parts by weight：
α, 100 parts of alpha, omega-dihydroxy polydimethyl siloxane
0-10 parts of plasticizer
40-120 parts of nm-class active calcium carbonate conductive powder
1-20 parts of hydroxyl scavenger
1-6 parts of crosslinking agent
0.1-1 parts of coupling agent
0.5-4 parts of catalyst.
2. conducting adhesive silicon rubber according to claim 1, it is characterised in that：By the raw material preparation of following parts by weight
：
α, 100 parts of alpha, omega-dihydroxy polydimethyl siloxane
2-5 parts of plasticizer
60-100 parts of nm-class active calcium carbonate conductive powder
2-10 parts of hydroxyl scavenger
2-4 parts of crosslinking agent
0.2-0.8 parts of coupling agent
1-2 parts of catalyst.
3. conducting adhesive silicon rubber according to claim 1 or 2, it is characterised in that：The plasticizer for dimethicone,
The one or more of MDT silicone oil, monohydroxy silicone oil.
4. conducting adhesive silicon rubber according to claim 1 or 2, it is characterised in that：The conductive powder for alundum (Al2O3),
One or more of boron nitride, aluminium nitride.
5. conducting adhesive silicon rubber according to claim 1 or 2, it is characterised in that：The hydroxyl scavenger for zeolite powder,
One or more of magnesium chloride powder, calcium chloride powder.
6. conducting adhesive silicon rubber according to claim 1 or 2, it is characterised in that：The crosslinking agent is methyl trimethoxy oxygen
One or more of base silane, methyl orthosilicate, propyl trimethoxy silicane.
7. conducting adhesive silicon rubber according to claim 1 or 2, it is characterised in that：The coupling agent is γ-(2,3- rings
The third oxygen of oxygen) propyl trimethoxy silicane, γ-aminopropyltrimethoxysilane, gamma-aminopropyl-triethoxy-silane, glycidyl
Trimethoxy silane, isocyanate group propyl trimethoxy silicane, isocyanate group propyl-triethoxysilicane, vinyl front three
One or more of oxysilane.
8. conducting adhesive silicon rubber according to claim 1 or 2, it is characterised in that：The catalyst is isopropyl titanate
Ethyl acetoacetate chelate.
9. conducting adhesive silicon rubber according to claim 1 or 2, it is characterised in that：The α, alpha, omega-dihydroxy polydimethyl
Siloxanes is viscosity is 1500~50000Pa.s at 25 DEG C α, alpha, omega-dihydroxy polydimethyl siloxane.
A kind of 10. method for being used to prepare claim 1-9 any one of them conducting adhesive silicon rubber, it is characterised in that including
Following steps：
（1）, by α, alpha, omega-dihydroxy polydimethyl siloxane, plasticizer, nm-class active calcium carbonate conductive powder 120- in kneader
150 DEG C of stirring 2-4h, vacuumize, obtain base material A；
（2）, hydroxyl scavenger is dehydrated at 300 DEG C to activation 3-6h, room temperature is cooled under vacuum, by α, alpha, omega-dihydroxy poly- two
Methylsiloxane, hydroxyl scavenger the 120-150 DEG C of stirring 2-4h in kneader, vacuumize, obtain base-material B；
（3）, under vacuum conditions, crosslinking agent, coupling agent, base material A and base-material B are stirred to react 10-30 minutes；Then it adds in and urges
Agent is stirred to react 20-60 minutes to get finished product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611142271.6A CN108219740A (en) | 2016-12-13 | 2016-12-13 | A kind of conducting adhesive silicon rubber and preparation method thereof |
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| CN201611142271.6A CN108219740A (en) | 2016-12-13 | 2016-12-13 | A kind of conducting adhesive silicon rubber and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467935A (en) * | 2018-11-28 | 2019-03-15 | 贵州云蛟科技有限公司 | A kind of heat conductive silica gel and preparation method thereof |
| CN110054998A (en) * | 2019-02-11 | 2019-07-26 | 斯迪克新型材料（江苏）有限公司 | Graphene orients heat-conducting double-sided adhesive tape |
| CN110194933A (en) * | 2019-07-02 | 2019-09-03 | 杭州之江新材料有限公司 | A kind of silane-modified glue silane coupling agent and preparation method thereof |
| CN115197263A (en) * | 2022-05-17 | 2022-10-18 | 广州市白云化工实业有限公司 | Modified silane coupling agent, waterproof silicone structural sealant and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467935A (en) * | 2018-11-28 | 2019-03-15 | 贵州云蛟科技有限公司 | A kind of heat conductive silica gel and preparation method thereof |
| CN110054998A (en) * | 2019-02-11 | 2019-07-26 | 斯迪克新型材料（江苏）有限公司 | Graphene orients heat-conducting double-sided adhesive tape |
| CN110054998B (en) * | 2019-02-11 | 2021-08-13 | 斯迪克新型材料（江苏）有限公司 | Graphene directional heat conduction double-sided adhesive tape |
| CN110194933A (en) * | 2019-07-02 | 2019-09-03 | 杭州之江新材料有限公司 | A kind of silane-modified glue silane coupling agent and preparation method thereof |
| CN115197263A (en) * | 2022-05-17 | 2022-10-18 | 广州市白云化工实业有限公司 | Modified silane coupling agent, waterproof silicone structural sealant and preparation method thereof |
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