CN102746673A - Two-component silicone rubber composition and method for preparing same - Google Patents
Two-component silicone rubber composition and method for preparing same Download PDFInfo
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- CN102746673A CN102746673A CN2012102103501A CN201210210350A CN102746673A CN 102746673 A CN102746673 A CN 102746673A CN 2012102103501 A CN2012102103501 A CN 2012102103501A CN 201210210350 A CN201210210350 A CN 201210210350A CN 102746673 A CN102746673 A CN 102746673A
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Abstract
The invention discloses a two-component silicone rubber composition, which comprises component A comprising, by weight, 100 parts of terminal vinyl polydimethylsiloxane having a viscosity of 500 to 1200 mPa.s, 5 to 20 parts of 500 to 1200 meshes white carbon black, 5 to 10 parts of 500 to 1000 meshes alumina and 0.5 to 3 parts of a platinum catalyst; and component B comprising, by weight, 100 parts of terminal vinyl polydimethylsiloxane having a viscosity of 500 to 1200 mPa.s, 5 to 15 parts of 500 to 1200 meshes white carbon black, 5 to 10 parts of 500 to 1000 meshes alumina, 0.1 to 3 parts of an inhibitor and 0.1 to 1 part of a cross-linking agent. The invention further discloses a method for preparing the two-component silicone rubber composition. The silicone rubber provided by the invention is colorless, transparent and highly insulated, and is suitable for encapsulating materials of electronic components.
Description
Technical field
The invention belongs to the fast cure silicone rubber of organosilicon room temperature field, be specifically related to a kind of pair of component room temperature fast-curing liquid silicon rubber composition and preparation method thereof.
Background technology
Self-vulcanizing (RTV) liquid silastic is a kind of novel organosilicon elastomerics that comes out in the sixties in 20th century, and the distinguishing feature of this rubber is need not heat, pressurize and can at room temperature solidify, and it is extremely convenient to use.Therefore, become an important component part of whole silicone based product rapidly once coming out.Room temperature vulcanized silicone rubber has been widely used as tackiness agent, sealing agent, protective coating, embedding and pattern-making material, widespread use in fields such as automobile, electronic apparatus, space flight and oceanographic engineering now.
In sealing applications, need high temperature possibly have a negative impact to the electronic devices and components performance by the solidified joint sealant such as electronic installations such as electronic devices and components or electronic modules.The fast setting that in some sealing agent and/or adhesive application (for example, application such as electronic devices and components, hi-line insulation and sealing), often also needs deep-section.
Have multiple based on silicone based compsn fast deep solidified solution in the prior art; For example; Chinese patent CN200810215427.8 is the same with Japanese Patent No.2811134, No.3121188 etc., all make water as deeply-curing agent accomplish deeply-curing.His successful part has been to avoid the adding of a large amount of volatile constituents, and the feature of environmental protection is strong.But under its room temperature, the thick sample deeply-curing of 15mm needs about 4h.
Chinese patent CN200880017726.9 discloses a kind of silicon composition of ambient temperature curable of rapid deep-section cure, and the blend of employing siloxane polymer and zinc oxide reaches the purpose of rapid deep-section cure.But still have 10% left and right sides sizing material uncured fully in this compsn 10h, range of application is relative narrower also.
Chinese patent CN97102934.2 discloses a kind of quick-setting organosiloxane composition that has suppressor factor.The amount of control suppressor factor and alkynol can make the deeply-curing time be controlled between the 3.25-7.15min.
Chinese patent CN200910069215.8 discloses fast and adjustable high-temperature resistant and expediting setting dealcoholized type room temperature vulcanized silicone rubber adhesive of a kind of curing speed and preparation method, and its surface drying time is merely 1-6s, and the deeply-curing time is not quite clear.
USP 4435536 has disclosed single-component can moist cured compositions, but its illustrated system high-temperature fast setting down, but the curing situation of undeclared deep-section, and the adding of solvent is unfavorable for environmental protection.
As stated, but the liquid silastic that still needs room temperature fast-curing in the art to satisfy practical application request.
Summary of the invention
Two component room temperature fast-curing liquid silicon rubber compositions that one of the object of the invention is that a kind of ability fast setting, no burn into curing back water white transparency are provided and has high-insulativity.
The present invention is achieved in that
A kind of two-component silicone rubber compsn comprises following component:
The A component: 100 weight part viscosity are the end-vinyl YSR 3286 of 500-1200mPas, 5-20 weight part 500 orders-1200 purpose WHITE CARBON BLACK, 5-10 weight part 500 orders-1000 purpose aluminum oxide and 0.5-3 part platinum catalyst.
The B component: 100 weight part viscosity are the end-vinyl YSR 3286 of 500-1200mPas, 5-15 weight part 500 orders-1200 purpose WHITE CARBON BLACK; 5-10 weight part 500 orders-1000 purpose aluminum oxide, the suppressor factor of 0.1-3 weight part, 0.1-1 weight part linking agent.
Scheme further is: said platinum catalyst is a Platinic chloride class catalyzer.
Scheme further is: said suppressor factor is 1,3-divinyl dimethyl-sily oxide or tetramethyl-tetrem thiazolinyl cyclotetrasiloxane.
Scheme further is: said linking agent is a methyl silicate, KH560, KH570; Containing hydrogen silicone oil, stannous octoate, vinyl silicone oil; Four Diacetylmonoxime base silanes, methyl tributanoximo silane, the mixture of one or more in the vinyl tributanoximo silane.
In actual use, the proportioning of A component and B component is weight ratio 20:1 to 10:5, all can reach requirement of the present invention.
The invention also discloses described two-component silicone rubber preparation of compositions method, be:
Preparation A component: with WHITE CARBON BLACK, aluminum oxide and the abundant mixing of end-vinyl YSR 3286, add platinum catalyst and stir, for use;
Preparation B component: with stirring in WHITE CARBON BLACK, aluminum oxide, suppressor factor, the adding end-vinyl YSR 3286, add linking agent and stir, for use;
With A component that makes and B component proportioning, and promptly get the two-component silicone rubber compsn after mixing.
Scheme further is: the proportioning of said A component and B component is weight ratio 20:1 to 10:5.
Described two-component silicone rubber compsn is that 2min-30min is completely crued high transparent liquid Zylox under a kind of room temperature.
Among the present invention, the quick and complete curing of Zylox room temperature can come effectively allotment curing speed through the particular combination of using B components contents and linking agent.The Zylox of this paper invention can fast setting water white transparency again, and can dispose the sizing material of different set times as required.
Two-component silicone rubber compsn of the present invention, no burn into shrinking percentage is little after solidifying, and is applicable to the Protection Product that needs fast sealing, has unique operation novelty.Can prevent the corrosion of pollutents such as moisture, salt fog, floating dust, the splendid moisture-proof insulation performance of long-term maintenance has very strong anti-environmental change ability between-50～250 ℃.And preparation technology is simple, solidifies the back water white transparency.And compsn of the present invention at room temperature gets final product fast setting, and water white transparency has high-insulativity again, is applicable to the Embedding Material of electronic devices and components, is easy to observe electronic devices and components state in use, can arbitrarily repair.Also can be used for fields such as insulation, sealing, filleting, heat insulation or heat conduction simultaneously.
Embodiment
Through embodiment the present invention is carried out concrete description below; Be necessary to be pointed out that at this following examples can only be used for the present invention is further specified; Can not be interpreted as the restriction to protection domain of the present invention, the person skilled in the art in this field can make some nonessential improvement and adjustment according to the content of the invention described above.Need to prove in addition, by timing work-ing life time of material mixing until the no longer self-leveling of material.Reach the timing set time of Xiao A hardness at least 5 until material by blended time of material.
Embodiment 1
1. taking by weighing viscosity is the end-vinyl YSR 3286 100g of 600mPas, 800 purpose WHITE CARBON BLACK 15g, and 600 purpose aluminum oxide 8g, Platinic chloride tetramethyl divinyl disiloxane complex compound 0.2g is with for use behind four kinds of material thorough mixing;
2. taking by weighing viscosity is the end-vinyl YSR 3286 100g of 600mPas, 800 purpose WHITE CARBON BLACK 10g, 600 purpose aluminum oxide 5g; 1,3-divinyl dimethyl-sily oxide 0.4g, containing hydrogen silicone oil 0.3g; Four Diacetylmonoxime base silane 0.1g are with for use behind six kinds of material thorough mixing;
3. the product with step 1 and step 2 gained mixes by weight 10:3.
Room temperature condition is observed its set time down, and goes up test tensile strength, elongation at break and tear strength, crossbeam speed 500mm/min by GB GB/T528-1988 at electronic universal tester (CMT7105, measuring instrument ltd is thought carefully in Zhuhai).Test result is seen table 1.
Embodiment 2:
1. taking by weighing viscosity is the end-vinyl YSR 3286 100g of 800mPas, 800 purpose WHITE CARBON BLACK 5g, and 600 purpose aluminum oxide 3g, Platinic chloride tetramethyl divinyl disiloxane complex compound 0.1g is with for use behind four kinds of material thorough mixing;
2. taking by weighing viscosity is the end-vinyl YSR 3286 100g of 800mPas, 800 purpose WHITE CARBON BLACK 2g, and 600 purpose aluminum oxide 2g, tetramethyl-tetrem thiazolinyl cyclotetrasiloxane 0.01g, four Diacetylmonoxime base silane 0.05g are with for use behind five kinds of material thorough mixing;
3. the product with step 1 and step 2 gained mixes by weight 20:1.
Method and condition by embodiment 1 are tested, and test result is seen table 1.
Embodiment 3:
1. taking by weighing viscosity is the end-vinyl YSR 3286 100g of 600mPas, 1200 purpose WHITE CARBON BLACK 12g, and 1000 purpose aluminum oxide 7g, Platinic chloride tetramethyl-tetrem thiazolinyl ring four silica silicon complex 0.5g are with for use behind four kinds of material thorough mixing;
2. taking by weighing viscosity is the end-vinyl YSR 3286 100g of 600mPas, 800 purpose WHITE CARBON BLACK 5g, 600 purpose aluminum oxide 3g; Tetramethyl-tetrem thiazolinyl cyclotetrasiloxane 0.03g; Methyl tributanoximo silane 0.5g, containing hydrogen silicone oil 0.4g is with for use behind six kinds of material thorough mixing;
3. the product with step 1 and step 2 gained mixes by weight 5:1.
Method and condition by embodiment 1 are tested, and test result is seen table 1.
Embodiment 4:
1. taking by weighing viscosity is the end-vinyl YSR 3286 100g of 1000mPas, 500 purpose WHITE CARBON BLACK 2g, and 600 purpose aluminum oxide 2g, Platinic chloride tetramethyl-tetrem thiazolinyl ring four silica silicon complex 0.05g are with for use behind four kinds of material thorough mixing;
2. taking by weighing viscosity is the end-vinyl YSR 3286 50g of 1000mPas, 500 purpose WHITE CARBON BLACK 2g, and 600 purpose aluminum oxide 2g, tetramethyl-tetrem thiazolinyl cyclotetrasiloxane 0.008g, methyl silicate 0.12g is with for use behind five kinds of material thorough mixing;
3. the product with step 1 and step 2 gained mixes by weight 2:1.
Method and condition by embodiment 1 are tested, and test result is seen table 1.
The performance of the 1 pair of fast solidified liquid Zylox of component room temperature of watch
Claims (6)
1. two-component silicone rubber compsn is characterized in that comprising following component:
The A component: 100 weight part viscosity are the end-vinyl YSR 3286 of 500-1200mPas, 5-20 weight part 500 orders-1200 purpose WHITE CARBON BLACK, 5-10 weight part 500 orders-1000 purpose aluminum oxide and 0.5-3 part platinum catalyst;
The B component: 100 weight part viscosity are the end-vinyl YSR 3286 of 500-1200mPas, 5-15 weight part 500 orders-1200 purpose WHITE CARBON BLACK; 5-10 weight part 500 orders-1000 purpose aluminum oxide, the suppressor factor of 0.1-3 weight part, 0.1-1 weight part linking agent.
2. two-component silicone rubber compsn according to claim 1 is characterized in that: said platinum catalyst is a Platinic chloride class catalyzer.
3. two-component silicone rubber compsn according to claim 1 is characterized in that: said suppressor factor is 1,3-divinyl dimethyl-sily oxide or tetramethyl-tetrem thiazolinyl cyclotetrasiloxane.
4. two-component silicone rubber compsn according to claim 1 is characterized in that: said linking agent is a methyl silicate, KH560; KH570, containing hydrogen silicone oil, stannous octoate; Vinyl silicone oil; Four Diacetylmonoxime base silanes, methyl tributanoximo silane, the mixture of one or more in the vinyl tributanoximo silane.
5. the described two-component silicone rubber preparation of compositions of the arbitrary claim of claim 1 to 4 method is characterized in that:
Preparation A component: with WHITE CARBON BLACK, aluminum oxide and the abundant mixing of end-vinyl YSR 3286, add platinum catalyst and stir, for use;
Preparation B component: with stirring in WHITE CARBON BLACK, aluminum oxide, suppressor factor, the adding end-vinyl YSR 3286, add linking agent and stir, for use;
With A component that makes and B component proportioning, and promptly get the two-component silicone rubber compsn after mixing.
6. according to the said two-component silicone rubber preparation of compositions of claim 5 method, it is characterized in that: the proportioning of said A component and B component is weight ratio 20:1 to 10:5.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924926A (en) * | 2012-11-01 | 2013-02-13 | 深圳市森日有机硅材料有限公司 | Liquid silicone rubber composition and preparation method thereof |
| CN103319903A (en) * | 2013-07-01 | 2013-09-25 | 江苏天辰硅材料有限公司 | Double-component addition type room-temperature vulcanizing silicone rubber and preparation method thereof |
| CN103756327A (en) * | 2013-11-07 | 2014-04-30 | 杭州硅畅科技有限公司 | Heat-conducting silicone rubber electronic casting glue and preparation method and application thereof |
| CN104500592A (en) * | 2014-11-17 | 2015-04-08 | 福建龙溪轴承(集团)股份有限公司 | Pneumatic compression and curing method for self-lubricating bushing |
| CN105482774A (en) * | 2015-12-29 | 2016-04-13 | 江苏创景科技有限公司 | Double-component high-heat-conductivity room-curing organic silicon potting adhesive |
| WO2016089190A1 (en) * | 2014-12-04 | 2016-06-09 | Aplicaciones Silidriel, S.A. De C.V. | Silicon-based elastomer coating used in electrical insulators |
| CN107022101A (en) * | 2017-06-01 | 2017-08-08 | 广州新诚生物科技有限公司 | Massage unit and its preparation method and application |
| CN108976806A (en) * | 2018-06-01 | 2018-12-11 | 贵州电网有限责任公司 | A kind of moisture-proof plugging material of nonfluid and preparation method thereof |
| CN111154269A (en) * | 2019-12-31 | 2020-05-15 | 杭州之江新材料有限公司 | Low-modulus heat-conducting organopolysiloxane composition and preparation method and application thereof |
| CN111373013A (en) * | 2017-10-23 | 2020-07-03 | 霍尼韦尔国际公司 | Peelable thermal gel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102079878A (en) * | 2010-12-20 | 2011-06-01 | 东莞市贝特利新材料有限公司 | Bicomponent additional silicone rubber composite and preparation method thereof |
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2012
- 2012-06-25 CN CN2012102103501A patent/CN102746673A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102079878A (en) * | 2010-12-20 | 2011-06-01 | 东莞市贝特利新材料有限公司 | Bicomponent additional silicone rubber composite and preparation method thereof |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924926A (en) * | 2012-11-01 | 2013-02-13 | 深圳市森日有机硅材料有限公司 | Liquid silicone rubber composition and preparation method thereof |
| CN103319903A (en) * | 2013-07-01 | 2013-09-25 | 江苏天辰硅材料有限公司 | Double-component addition type room-temperature vulcanizing silicone rubber and preparation method thereof |
| CN103319903B (en) * | 2013-07-01 | 2015-08-12 | 江苏天辰硅材料有限公司 | A kind of dual composition addition type room temperature vulcanized silicone rubber and preparation method |
| CN103756327A (en) * | 2013-11-07 | 2014-04-30 | 杭州硅畅科技有限公司 | Heat-conducting silicone rubber electronic casting glue and preparation method and application thereof |
| CN104500592A (en) * | 2014-11-17 | 2015-04-08 | 福建龙溪轴承(集团)股份有限公司 | Pneumatic compression and curing method for self-lubricating bushing |
| WO2016089190A1 (en) * | 2014-12-04 | 2016-06-09 | Aplicaciones Silidriel, S.A. De C.V. | Silicon-based elastomer coating used in electrical insulators |
| CN105482774A (en) * | 2015-12-29 | 2016-04-13 | 江苏创景科技有限公司 | Double-component high-heat-conductivity room-curing organic silicon potting adhesive |
| CN107022101A (en) * | 2017-06-01 | 2017-08-08 | 广州新诚生物科技有限公司 | Massage unit and its preparation method and application |
| CN107022101B (en) * | 2017-06-01 | 2020-09-08 | 广州新诚生物科技有限公司 | Massage unit and preparation method and application thereof |
| CN111373013A (en) * | 2017-10-23 | 2020-07-03 | 霍尼韦尔国际公司 | Peelable thermal gel |
| CN108976806A (en) * | 2018-06-01 | 2018-12-11 | 贵州电网有限责任公司 | A kind of moisture-proof plugging material of nonfluid and preparation method thereof |
| CN111154269A (en) * | 2019-12-31 | 2020-05-15 | 杭州之江新材料有限公司 | Low-modulus heat-conducting organopolysiloxane composition and preparation method and application thereof |
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Application publication date: 20121024 |