CN104530715A - High temperature-resisting room temperature vulcanized silicone rubber and preparation method thereof - Google Patents
High temperature-resisting room temperature vulcanized silicone rubber and preparation method thereof Download PDFInfo
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Abstract
The invention relates to high temperature-resisting room temperature vulcanized silicone rubber which comprises a component A and a component B, wherein the component A and the component B are mixed at a mass ratio of (6-10):1; the component A consists of the following components in parts by mass: 0-100 parts of a base polymer, 5-50 parts of a plasticizer, 50-100 parts of filler, 0.5-5 parts of a heat-resisting additive and 0.01-1 part of a deep-level curing agent; the component B consists of the following components in parts by mass: 0-100 parts of dimethyl silicon oil, 50-100 parts of a cross-linking agent, 5-30 parts of a coupling agent and 0.001-5 parts of a catalyst. The prepared silicon rubber disclosed by the invention is improved in heat resistance and increased in application temperature. The invention also provides a preparation method of the high temperature-resisting room temperature vulcanized silicone rubber.
Description
Technical field
The present invention relates to silastic material technical field, specifically high temperature resistant room temperature vulcanized silicone rubber and preparation method thereof.
Background technology
Organo-silicone rubber itself has excellent resistance to elevated temperatures, generally can at 200 DEG C life-time service, but along with the continuous progress of science and technology, and people propose to have examined higher requirement to the performance of material.Especially along with aerospace, and the development of high ferro technology, the thermotolerance improving room temperature vulcanized silicone rubber further becomes study hotspot.Find by inquiry, the thermotolerance research report for single-component room-temperature-vulsilicone silicone rubber is relatively many, then little to the thermotolerance research of double component room temperature vulcanization silicon rubber.Therefore, we have proposed a kind of preparation method of high temperature resistant room temperature vulcanized silicone rubber.
Summary of the invention
The object of this invention is to provide a kind of high temperature resistant room temperature vulcanized silicone rubber, its thermotolerance can be improved, improve use temperature, the preparation method of above-mentioned high temperature resistant room temperature vulcanized silicone rubber is provided simultaneously.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of high temperature resistant room temperature vulcanized silicone rubber, comprises component A and B component, and component A and B component press the mass ratio mixing of A:B=6 ~ 10:1;
The composition of described component A is according to the mass fraction:
Base polymer 0 ~ 100 part
5 ~ 50 parts, softening agent
Filler 50 ~ 100 parts
Heat-resisting additive 0.5 ~ 6 part
Deep cure agent 0.01-1 part;
The composition of described B component is according to the mass fraction:
Dimethyl silicone oil 0 ~ 100 part
Linking agent 50 ~ 100 parts
Coupling agent 5 ~ 30 parts
Catalyzer 0.001 ~ 5 part;
Described base polymer is α, alpha, omega-dihydroxy polydimethyl siloxane, one or more combination in α, ω-dimethoxy polydimethylsiloxane;
Described softening agent is one or more combination in dimethyl silicone oil, methyl phenyl silicone oil;
Described filler is one or more combination in diatomite, calcium carbonate, silica powder, aluminium hydroxide;
Described heat-resisting additive is cerium oxide, cerous hydroxide, titanium oxide, aluminium sesquioxide, ferric oxide, one or more combination in tindioxide;
Described deep cure agent is water, the one in magnesium oxide;
Described linking agent is one or more combination in tetraethoxy, positive silicic acid propyl ester, ethyl polysilicate;
Described coupling agent is one or more combination in γ-(2,3-glycidoxy) propyl trimethoxy siloxanes, γ-aminopropyl triethoxysilane, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane;
Described catalyzer is one or more combination in dibutyl tin dilaurate, dibutyl tin acetate, dibutyl tin dioctoate or stannous octoate, isopropyl titanate, tetrabutyl titanate.
A preparation method for high temperature resistant room temperature vulcanized silicone rubber, described preparation method is as follows:
A. according to the composition of above-mentioned component A and mass fraction, base polymer, softening agent, filler, heat-resisting additive, deep cure agent are added in high speed planetary mixer, stir 2 ~ 10 hours under vacuum tightness 0 ~-0.1MPa, obtained component A;
B. according to the composition of above-mentioned B component and mass fraction by dimethyl silicone oil, linking agent, coupling agent, catalyzer adds in high speed planetary mixer, at vacuum tightness 0 ~-0.1MPa, stirs 2 ~ 10 hours, obtained B component;
C. at room temperature component A and B component are mixed in proportion.
Beneficial effect of the present invention is:
1. the silicon rubber curing speed that obtains of the present invention is fast, and curing speed adjusts by the ratio adjusting A and B.
2. the silicon rubber produced of the method, not only high temperature resistant, and have good flame retardant effect.
3. stable storing, A, B component be packaging separately, and linking agent and catalyzer do not glued joint tactile with base.
Embodiment
Below by way of specific embodiment, the specific embodiment of the present invention is described in further detail.
Example one
A preparation method for high temperature resistant room temperature vulcanized silicone rubber, described preparation method is as follows:
A. according to mass fraction by α, alpha, omega-dihydroxy polydimethyl siloxane 100 parts, dimethyl silicone oil 15 parts, 100 parts, aluminium hydroxide, ferric oxide 5 parts, 0.05 part, water adds in high speed planetary mixer, and vacuum tightness is-0.05MPa, and rotating speed is under 650rpm condition, stir 2.5 hours, obtained component A;
B. according to mass fraction by dimethyl silicone oil 100 parts, tetraethoxy 50 parts, ethyl polysilicate 15 parts, γ-(2,3-glycidoxy) propyl trimethoxy siloxanes 5 parts, γ-aminopropyl triethoxysilane 5 parts, dibutyl tin dilaurylate 1 part adds in high speed planetary mixer, and vacuum tightness is-0.05MPa, and rotating speed is under 650rpm condition, stir 2.5 hours, obtained B component;
C., under room temperature, component A and B component are mixed by A:B=10:1 mass ratio.
Example two
A preparation method for high temperature resistant room temperature vulcanized silicone rubber, described preparation method is as follows:
A. according to mass fraction by α, alpha, omega-dihydroxy polydimethyl siloxane 100 parts, methyl phenyl silicone oil 15 parts, 100 parts, aluminium hydroxide, cerium oxide 2 parts, 0.05 part, water adds in high speed planetary mixer, and vacuum tightness is-0.05MPa, and rotating speed is under 650rpm condition, stir 2.5 hours, obtained component A;
B. according to mass fraction by dimethyl silicone oil 100 parts, tetraethoxy 50 parts, ethyl polysilicate 15 parts, γ-(2,3-glycidoxy) propyl trimethoxy siloxanes 5 parts, γ-aminopropyl triethoxysilane 5 parts, dibutyl tin dilaurylate 1 part adds in high speed planetary mixer, and vacuum tightness is-0.05MPa, and rotating speed is under 650rpm condition, stir 2.5 hours, obtained B component;
C., under room temperature, component A and B component are mixed by A:B=10:1 mass ratio.
Example three
A preparation method for high temperature resistant room temperature vulcanized silicone rubber, described preparation method is as follows:
A. according to mass fraction by α, alpha, omega-dihydroxy polydimethyl siloxane 100 parts, dimethyl silicone oil 15 parts, 100 parts, aluminium hydroxide, ferric oxide 5 parts, cerous hydroxide 1 part, 2 parts, magnesium oxide, add in high speed planetary mixer, vacuum tightness is-0.05MPa, and rotating speed is under 650rpm condition, stir 2.5 hours, obtained component A;
B. according to mass fraction by dimethyl silicone oil 100 parts, tetraethoxy 50 parts, ethyl polysilicate 15 parts, γ-(2,3-glycidoxy) propyl trimethoxy siloxanes 5 parts, γ-aminopropyl triethoxysilane 5 parts, dibutyl tin dilaurylate 1 part adds in high speed planetary mixer, and vacuum tightness is-0.05MPa, and rotating speed is under 650rpm condition, stir 2.5 hours, obtained B component;
C., under room temperature, component A and B component are mixed by A:B=10:1 mass ratio.
Example four
A preparation method for high temperature resistant room temperature vulcanized silicone rubber, described preparation method is as follows:
A. according to mass fraction by α, alpha, omega-dihydroxy polydimethyl siloxane 60 parts, dimethyl silicone oil 10 parts, methyl phenyl silicone oil 10 parts, 40 parts, aluminium hydroxide, 20 parts, calcium carbonate, silica powder 5 parts, ferric oxide 2 parts, cerous hydroxide 0.5 part, tindioxide 0.5 part, 2 parts, magnesium oxide, add in high speed planetary mixer, vacuum tightness is-0.05MPa, and rotating speed is under 650rpm condition, stir 2.5 hours, obtained component A;
B. according to mass fraction by dimethyl silicone oil 100 parts, tetraethoxy 50 parts, positive silicic acid propyl ester 15 parts, ethyl polysilicate 15 parts, γ-(2,3-glycidoxy) propyl trimethoxy siloxanes 8 parts, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane 8 parts, dibutyl tin dilaurylate 1.2 parts, isopropyl titanate 0.8 part, adds in high speed planetary mixer, vacuum tightness is-0.05MPa, rotating speed is under 650rpm condition, stirs 2.5 hours, obtained B component;
C., under room temperature, component A and B component are mixed by A:B=6:1 mass ratio.
Carry out product performance test to above-mentioned three embodiments, test result is as follows:
Can be drawn by upper table, the silicon rubber that the inventive method is produced, not only high temperature resistant, and have good flame retardant effect.
Here description of the invention and application is illustrative, not wants by scope restriction of the present invention in the above-described embodiments, and therefore, the present invention is not by the restriction of the present embodiment, and the technical scheme that any employing equivalence replacement obtains is all in the scope of protection of the invention.
Claims (2)
1. a high temperature resistant room temperature vulcanized silicone rubber, is characterized by, and comprises component A and B component, and component A and B component press the mass ratio mixing of A:B=6 ~ 10:1;
The composition of described component A is according to the mass fraction:
Base polymer 0 ~ 100 part
5 ~ 50 parts, softening agent
Filler 50 ~ 100 parts
Heat-resisting additive 0.5 ~ 6 part
Deep cure agent 0.01-1 part;
The composition of described B component is according to the mass fraction:
Dimethyl silicone oil 0 ~ 100 part
Linking agent 50 ~ 100 parts
Coupling agent 5 ~ 30 parts
Catalyzer 0.001 ~ 5 part;
Described base polymer is α, alpha, omega-dihydroxy polydimethyl siloxane, one or more combination in α, ω-dimethoxy polydimethylsiloxane;
Described softening agent is one or more combination in dimethyl silicone oil, methyl phenyl silicone oil;
Described filler is one or more combination in diatomite, calcium carbonate, silica powder, aluminium hydroxide;
Described heat-resisting additive is cerium oxide, cerous hydroxide, titanium oxide, aluminium sesquioxide, ferric oxide, one or more combination in tindioxide;
Described deep cure agent is water, the one in magnesium oxide;
Described linking agent is one or more combination in tetraethoxy, positive silicic acid propyl ester, ethyl polysilicate;
Described coupling agent is one or more combination in γ-(2,3-glycidoxy) propyl trimethoxy siloxanes, γ-aminopropyl triethoxysilane, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane;
Described catalyzer is one or more combination in dibutyl tin dilaurate, dibutyl tin acetate, dibutyl tin dioctoate or stannous octoate, isopropyl titanate, tetrabutyl titanate.
2. a preparation method for high temperature resistant room temperature vulcanized silicone rubber, is characterized by, and described preparation method is as follows:
A. according to the composition of above-mentioned component A and mass fraction, base polymer, softening agent, filler, heat-resisting additive, deep cure agent are added in high speed planetary mixer, stir 2 ~ 10 hours under vacuum tightness 0 ~-0.1MPa, obtained component A;
B. according to the composition of above-mentioned B component and mass fraction by dimethyl silicone oil, linking agent, coupling agent, catalyzer adds in high speed planetary mixer, at vacuum tightness 0 ~-0.1MPa, stirs 2 ~ 10 hours, obtained B component;
C. at room temperature component A and B component are mixed in proportion.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817846A (en) * | 2015-05-07 | 2015-08-05 | 安徽五信新材料有限公司 | High-density room-temperature-vulcanizing double-component silicone rubber |
| CN106244091A (en) * | 2016-08-23 | 2016-12-21 | 江苏天辰新材料股份有限公司 | A kind of high intensity dealcoholized type double component room temperature vulcanization silicon rubber building sealant and preparation method thereof |
| CN106751881A (en) * | 2017-01-24 | 2017-05-31 | 大连东信微波技术有限公司 | A kind of room temperature molded curing heat conduction electromagnetic-wave absorbing rubber material and preparation method thereof |
| CN106867443A (en) * | 2015-12-10 | 2017-06-20 | 江苏天辰新材料股份有限公司 | A kind of dealcoholysis condensed type double-component room temperature vulcanized silicone rubber building sealant and preparation method thereof |
| CN107163908A (en) * | 2017-07-18 | 2017-09-15 | 杭州之江有机硅化工有限公司 | One kind is used for automobile lamp and assembles sealed two-component silicone rubber sealant and preparation method thereof |
| CN109206913A (en) * | 2018-07-07 | 2019-01-15 | 深圳市富邦新材科技有限公司 | A kind of dedicated silicon materials of water proof type USB/Type-C and solution |
| CN109863207A (en) * | 2016-10-28 | 2019-06-07 | 信越化学工业株式会社 | Heat resistance mixed milling type silicon rubber composition |
| CN110437623A (en) * | 2019-09-02 | 2019-11-12 | 贵州航天精工制造有限公司 | A kind of tear-proof high-conductivity silicon rubber and its processing method |
| CN112063359A (en) * | 2020-07-29 | 2020-12-11 | 广东美的厨房电器制造有限公司 | Adhesive composition and bonding method |
| CN112322050A (en) * | 2020-12-02 | 2021-02-05 | 河南中煌节能电器有限公司 | High-temperature-resistant rubber and cable high-temperature-resistant layer prepared from high-temperature-resistant rubber |
| CN113337119A (en) * | 2021-05-27 | 2021-09-03 | 厦门汉升橡塑制品有限公司 | Weather-resistant silicone rubber and preparation method thereof |
| CN117327398A (en) * | 2023-09-22 | 2024-01-02 | 深圳市康利邦科技有限公司 | Bi-component quick-setting neutral dealcoholization RTV silicone rubber and preparation method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104817846A (en) * | 2015-05-07 | 2015-08-05 | 安徽五信新材料有限公司 | High-density room-temperature-vulcanizing double-component silicone rubber |
| CN106867443A (en) * | 2015-12-10 | 2017-06-20 | 江苏天辰新材料股份有限公司 | A kind of dealcoholysis condensed type double-component room temperature vulcanized silicone rubber building sealant and preparation method thereof |
| CN106244091A (en) * | 2016-08-23 | 2016-12-21 | 江苏天辰新材料股份有限公司 | A kind of high intensity dealcoholized type double component room temperature vulcanization silicon rubber building sealant and preparation method thereof |
| CN109863207A (en) * | 2016-10-28 | 2019-06-07 | 信越化学工业株式会社 | Heat resistance mixed milling type silicon rubber composition |
| CN106751881A (en) * | 2017-01-24 | 2017-05-31 | 大连东信微波技术有限公司 | A kind of room temperature molded curing heat conduction electromagnetic-wave absorbing rubber material and preparation method thereof |
| CN107163908A (en) * | 2017-07-18 | 2017-09-15 | 杭州之江有机硅化工有限公司 | One kind is used for automobile lamp and assembles sealed two-component silicone rubber sealant and preparation method thereof |
| CN107163908B (en) * | 2017-07-18 | 2018-09-18 | 杭州之江有机硅化工有限公司 | A kind of two-component silicone rubber sealant and preparation method thereof for automobile lamp assembly sealing |
| CN109206913A (en) * | 2018-07-07 | 2019-01-15 | 深圳市富邦新材科技有限公司 | A kind of dedicated silicon materials of water proof type USB/Type-C and solution |
| CN110437623A (en) * | 2019-09-02 | 2019-11-12 | 贵州航天精工制造有限公司 | A kind of tear-proof high-conductivity silicon rubber and its processing method |
| CN112063359A (en) * | 2020-07-29 | 2020-12-11 | 广东美的厨房电器制造有限公司 | Adhesive composition and bonding method |
| CN112322050A (en) * | 2020-12-02 | 2021-02-05 | 河南中煌节能电器有限公司 | High-temperature-resistant rubber and cable high-temperature-resistant layer prepared from high-temperature-resistant rubber |
| CN113337119A (en) * | 2021-05-27 | 2021-09-03 | 厦门汉升橡塑制品有限公司 | Weather-resistant silicone rubber and preparation method thereof |
| CN117327398A (en) * | 2023-09-22 | 2024-01-02 | 深圳市康利邦科技有限公司 | Bi-component quick-setting neutral dealcoholization RTV silicone rubber and preparation method thereof |
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Application publication date: 20150422 |