CN103319902A - High-temperature vulcanized silicone rubber for cold-contraction cable accessory and preparation method thereof - Google Patents
High-temperature vulcanized silicone rubber for cold-contraction cable accessory and preparation method thereof Download PDFInfo
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- CN103319902A CN103319902A CN2013102538813A CN201310253881A CN103319902A CN 103319902 A CN103319902 A CN 103319902A CN 2013102538813 A CN2013102538813 A CN 2013102538813A CN 201310253881 A CN201310253881 A CN 201310253881A CN 103319902 A CN103319902 A CN 103319902A
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Abstract
The invention discloses high-temperature vulcanized silicone rubber for a cold-contraction cable accessory and a preparation method thereof. The high-temperature vulcanized silicone rubber for a cold-contraction cable accessory is prepared from crude rubber and a reinforcing material by mixing through physical change and chemical change in a kneading machine, and has great insulating property and high-and-low temperature resistance and better aging performance.
Description
Technical field
The present invention relates to a kind of silicon rubber and preparation method thereof, particularly a kind of chilling shrink type cable accessory belongs to the elastomeric material technical field with high-temperature silicon disulfide rubber and preparation method thereof.
Background technology
Itself has electrical insulating property high-temperature silicon disulfide rubber, and being widely used in cable accessory, electric, household electrical appliance, computer, testing tool etc. needs in the product of insulation.Chilling shrink type cable accessory is to utilize elastomer material (commonly used have silicon rubber and ethylene-propylene rubber(EPR)) injection sulfidization molding, consists of the parts of various cable accessories with the plastic spiral upholder through hole enlargement, lining again.Chilling shrink type cable accessory is pressed on centre or the terminal on the coating, and using method is simple, can play insulation, dustproof, waterproof and sealing function.The common insulating property of silicon rubber and water-tight performance that chilling shrink type cable accessory of the prior art uses are not good, easily aging, and work-ing life is shorter, therefore, needs to explore a kind of novel chilling shrink type cable accessory and uses silicon rubber to solve the problem in the practical application.
Summary of the invention
The object of the invention is to overcome defective of the prior art, a kind of chilling shrink type cable accessory high-temperature silicon disulfide rubber and preparation method thereof is provided, described silicon rubber has good insulating property and high and low temperature resistance, and good aging.
The present invention is achieved by the following technical programs.
A kind of chilling shrink type cable accessory high-temperature silicon disulfide rubber, its moiety is counted with mass parts:
Above-mentioned a kind of chilling shrink type cable accessory high-temperature silicon disulfide rubber, wherein, the molecular-weight average of described methyl vinyl silicon kautschuk is 59-65 ten thousand, the mole percent level of vinyl is 0.03-8.0%.
Above-mentioned a kind of chilling shrink type cable accessory high-temperature silicon disulfide rubber, wherein, described white carbon black is precipitated silica, its specific surface area is at least 50m
2/ g, median size 2-3 μ m.
Above-mentioned a kind of chilling shrink type cable accessory high-temperature silicon disulfide rubber, wherein, described white carbon black is fumed silica, its specific surface area is 100-400m
2/ g, median size is 7-40nm.
Above-mentioned a kind of chilling shrink type cable accessory high-temperature silicon disulfide rubber, wherein, described coupling agent is vinyltriethoxysilane or vinyltrimethoxy silane.
Above-mentioned a kind of chilling shrink type cable accessory high-temperature silicon disulfide rubber, wherein, the vinyl mole percent level of described vinyl silicone oil is 6.0%.
Above-mentioned a kind of chilling shrink type cable accessory preparation method of high-temperature silicon disulfide rubber, preparation process is as follows: at first methyl vinyl silicon kautschuk and Zinic stearas are mediated 3-5min in vacuum kneader, again with white carbon black, hydroxy silicon oil, coupling agent and vinyl silicone oil add in the vacuum kneader several times, fully stir after each the adding, compound is mixed, temperature of reaction is controlled at below 80 ℃, after sizing material is kneaded and formed, be warmed up to 160-180 ℃, heat refining 90-120min, then being evacuated to vacuum tightness is-0.05--0.07MPa, vacuumize plastic emitting behind the 30-120min, then with sizing material thin-pass 3-5 time on opening rubber mixing machine, filter at rubber strainer at last, can obtain described chilling shrink type cable accessory high-temperature silicon disulfide rubber.
Above-mentioned a kind of chilling shrink type cable accessory wherein, divides white carbon black, hydroxy silicon oil, coupling agent and vinyl silicone oil 6 times and adds in the vacuum kneader with the preparation method of high-temperature silicon disulfide rubber.
Chilling shrink type cable accessory high-temperature silicon disulfide rubber of the present invention be by rubber and supporting material in kneader through physical change with chemical transformation is mixing forms, wherein white carbon black is strengthening agent; Hydroxy silicon oil is constitution controller; Zinic stearas is releasing agent; Coupling agent adopts vinyltriethoxysilane or vinyltrimethoxy silane, the silicon rubber that makes can be used for mold pressing or extrudes the class chilling shrink type cable accessory after sulfuration, described silicon rubber is transparent, translucent or oyster white, can add as required look female modulation different colours to satisfy the demand of various products.Chilling shrink type cable accessory of the present invention has good insulating property and high and low temperature resistance, good aging with high-temperature silicon disulfide rubber.
Embodiment
Below by specific embodiment the specific embodiment of the present invention is described in further detail.
Embodiment 1
A kind of chilling shrink type cable accessory preparation method of high-temperature silicon disulfide rubber, preparation process is as follows: at first be that 0.03% methyl vinyl silicon kautschuk and 0.17 part Zinic stearas are mediated 3min with 100 parts vinyl mole percent level in vacuum kneader, again with 20 parts precipitated silica, 1.3 the hydroxy silicon oil of part, add for 5 times in the vacuum kneader 0.1 the vinyltriethoxysilane of part and 0.5 part vinyl silicone oil divide, fully stir after each the adding, compound is mixed, temperature of reaction is controlled at 75 ℃, after sizing material is kneaded and formed, be warmed up to 160 ℃, heat refining 90min, then being evacuated to vacuum tightness is-0.05MPa, vacuumize plastic emitting behind the 30min, then with sizing material thin-pass 3 times on opening rubber mixing machine, filter at rubber strainer at last, can obtain described chilling shrink type cable accessory high-temperature silicon disulfide rubber.
Embodiment 2
A kind of chilling shrink type cable accessory preparation method of high-temperature silicon disulfide rubber, preparation process is as follows: at first be that 90 parts of 0.03% methyl vinyl silicon kautschuks and vinyl mole percent level are that the Zinic stearas of 10 parts of 0.08% methyl vinyl silicon kautschuks and 0.18 part is mediated 4min in vacuum kneader with the vinyl mole percent level, again with 30 parts fumed silica (owing to containing a large amount of silicon hydroxyls and make its surface have very strong wetting ability in the fumed silica surface, therefore need an amount of silicone emulsion of adding and the hydroxyl reaction of silica sphere to make the surface of silicon-dioxide become hydrophobicity by wetting ability), 3 parts hydroxy silicon oil, add for 6 times in the vacuum kneader 0.3 the vinyltrimethoxy silane of part and 0.9 part vinyl silicone oil divide, fully stir after each the adding, compound is mixed, temperature of reaction is controlled at 70 ℃, after sizing material is kneaded and formed, be warmed up to 170 ℃, heat refining 100min, then being evacuated to vacuum tightness is-0.06MPa, vacuumize plastic emitting behind the 90min, then with sizing material thin-pass 4 times on opening rubber mixing machine, filter at rubber strainer at last, can obtain described chilling shrink type cable accessory high-temperature silicon disulfide rubber.
Embodiment 3
A kind of chilling shrink type cable accessory preparation method of high-temperature silicon disulfide rubber, preparation process is as follows: at first be that 3% methyl vinyl silicon kautschuk and 0.2 part Zinic stearas are mediated 5min with 100 parts vinyl mole percent level in vacuum kneader, again with 50 parts precipitated silica, 5 parts hydroxy silicon oil, add for 7 times in the vacuum kneader 0.5 the vinyltrimethoxy silane of part and 1.2 parts vinyl silicone oil divide, fully stir after each the adding, compound is mixed, temperature of reaction is controlled at 65 ℃, after sizing material is kneaded and formed, be warmed up to 180 ℃, heat refining 120min, then being evacuated to vacuum tightness is-0.07MPa, vacuumize plastic emitting behind the 120min, then with sizing material thin-pass 5 times on opening rubber mixing machine, filter at rubber strainer at last, can obtain described chilling shrink type cable accessory high-temperature silicon disulfide rubber.
The chilling shrink type cable accessory that the method for the invention makes performance data such as the following table 1 of high-temperature silicon disulfide rubber:
The chilling shrink type cable accessory that table 1 the method for the invention makes high-temperature silicon disulfide rubber performance data
Here description of the invention and application is illustrative, is not to want that therefore, the present invention is not subjected to the restriction of the present embodiment with scope restriction of the present invention in the above-described embodiments, and the technical scheme that any employing equivalence replacement obtains is all in the scope of protection of the invention.
Claims (8)
1. a chilling shrink type cable accessory high-temperature silicon disulfide rubber is characterized in that, its moiety is counted with mass parts:
100 parts of methyl vinyl silicon kautschuks
White carbon black 20-50 part
Hydroxy silicon oil 1.3-5 part
Zinic stearas 0.17-0.2 part
Coupling agent 0.1-0.5 part
Vinyl silicone oil 0.5-1.2 part.
2. a kind of chilling shrink type cable accessory high-temperature silicon disulfide rubber as claimed in claim 1 is characterized in that, the molecular-weight average of described methyl vinyl silicon kautschuk is 59-65 ten thousand, and the mole percent level of vinyl is 0.03-8.0%.
3. a kind of chilling shrink type cable accessory high-temperature silicon disulfide rubber as claimed in claim 1 is characterized in that, described white carbon black is precipitated silica, and its specific surface area is at least 50 m
2/ g, median size 2-3 μ m.
4. a kind of chilling shrink type cable accessory high-temperature silicon disulfide rubber as claimed in claim 1 is characterized in that, described white carbon black is fumed silica, and its specific surface area is 100-400 m
2/ g, median size is 7-40nm.
5. a kind of chilling shrink type cable accessory high-temperature silicon disulfide rubber as claimed in claim 1 is characterized in that, described coupling agent is vinyltriethoxysilane or vinyltrimethoxy silane.
6. a kind of chilling shrink type cable accessory high-temperature silicon disulfide rubber as claimed in claim 1 is characterized in that, the vinyl mole percent level of described vinyl silicone oil is 6.0%.
7. a kind of chilling shrink type cable accessory as claimed in claim 1 is with the preparation method of high-temperature silicon disulfide rubber, it is characterized in that, preparation process is as follows: at first methyl vinyl silicon kautschuk and Zinic stearas are mediated 3-5min in vacuum kneader, again with white carbon black, hydroxy silicon oil, coupling agent and vinyl silicone oil add in the vacuum kneader several times, fully stir after each the adding, compound is mixed, temperature of reaction is controlled at below 80 ℃, after sizing material is kneaded and formed, be warmed up to 160-180 ℃, heat refining 90-120min, then being evacuated to vacuum tightness is-0.05--0.07MPa, vacuumize plastic emitting behind the 30-120min, then with sizing material thin-pass 3-5 time on opening rubber mixing machine, filter at rubber strainer at last, can obtain described chilling shrink type cable accessory high-temperature silicon disulfide rubber.
8. a kind of chilling shrink type cable accessory as claimed in claim 7 is characterized in that with the preparation method of high-temperature silicon disulfide rubber, divides white carbon black, hydroxy silicon oil, coupling agent and vinyl silicone oil 6 times and adds in the vacuum kneader.
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| CN2013102538813A CN103319902A (en) | 2013-06-21 | 2013-06-21 | High-temperature vulcanized silicone rubber for cold-contraction cable accessory and preparation method thereof |
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| CN2013102538813A CN103319902A (en) | 2013-06-21 | 2013-06-21 | High-temperature vulcanized silicone rubber for cold-contraction cable accessory and preparation method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104059365A (en) * | 2014-06-30 | 2014-09-24 | 无锡新腾东方电缆附件有限公司 | Silicon rubber for cold-shrinkable cable fittings and preparation method thereof |
| CN104476693A (en) * | 2014-12-04 | 2015-04-01 | 成都锦汇科技有限公司 | Preparation method of silicone rubber coloring master batch |
| CN105647188A (en) * | 2016-04-12 | 2016-06-08 | 湖南超晨电工科技有限公司 | Semiconductive silicone rubber material for cold-shrinkable cable accessories and preparation method thereof |
| CN105778517A (en) * | 2016-03-31 | 2016-07-20 | 尹志平 | Conductive silicone rubber composition in shrinkable cable accessory and manufacturing method of conductive silicone rubber composition |
| CN105802241A (en) * | 2016-03-31 | 2016-07-27 | 尹志平 | Electro-conductive silicon rubber composition used in cable connector plug part and manufacturing method of electro-conductive silicon rubber composition |
| CN106147240A (en) * | 2016-06-24 | 2016-11-23 | 安徽省浩辉电力技术有限公司 | A kind of chilling shrink type cable accessory silicone rubber and preparation method thereof |
| CN106189253A (en) * | 2016-07-13 | 2016-12-07 | 乐清市华仪电缆附件有限公司 | Chilling shrink type cable accessory silastic material and preparation method thereof |
| CN106229044A (en) * | 2016-08-29 | 2016-12-14 | 江苏鹏申高温线缆有限公司 | A kind of silicon rubber insulation braided wire and technique thereof |
| CN106366666A (en) * | 2016-06-29 | 2017-02-01 | 泰州市天晟制冷科技有限公司 | Preparation method of mixed gel |
| CN107815121A (en) * | 2017-11-13 | 2018-03-20 | 董绍光 | A kind of preparation method of silicon rubber compound die binder |
| CN110408213A (en) * | 2019-07-15 | 2019-11-05 | 安徽伊法拉电力科技有限公司 | A kind of chilling shrink type cable accessory silicon rubber and preparation method thereof |
| CN112570232A (en) * | 2020-11-13 | 2021-03-30 | 四川航天燎原科技有限公司 | Rapid curing method of vulcanized silicone rubber |
| CN109679348B (en) * | 2018-11-27 | 2021-04-30 | 东莞市朗晟材料科技有限公司 | Flame-retardant silicone rubber and continuous production process and continuous production system thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104059365A (en) * | 2014-06-30 | 2014-09-24 | 无锡新腾东方电缆附件有限公司 | Silicon rubber for cold-shrinkable cable fittings and preparation method thereof |
| CN104476693A (en) * | 2014-12-04 | 2015-04-01 | 成都锦汇科技有限公司 | Preparation method of silicone rubber coloring master batch |
| CN105778517A (en) * | 2016-03-31 | 2016-07-20 | 尹志平 | Conductive silicone rubber composition in shrinkable cable accessory and manufacturing method of conductive silicone rubber composition |
| CN105802241A (en) * | 2016-03-31 | 2016-07-27 | 尹志平 | Electro-conductive silicon rubber composition used in cable connector plug part and manufacturing method of electro-conductive silicon rubber composition |
| CN105647188A (en) * | 2016-04-12 | 2016-06-08 | 湖南超晨电工科技有限公司 | Semiconductive silicone rubber material for cold-shrinkable cable accessories and preparation method thereof |
| CN106147240A (en) * | 2016-06-24 | 2016-11-23 | 安徽省浩辉电力技术有限公司 | A kind of chilling shrink type cable accessory silicone rubber and preparation method thereof |
| CN106366666A (en) * | 2016-06-29 | 2017-02-01 | 泰州市天晟制冷科技有限公司 | Preparation method of mixed gel |
| CN106189253A (en) * | 2016-07-13 | 2016-12-07 | 乐清市华仪电缆附件有限公司 | Chilling shrink type cable accessory silastic material and preparation method thereof |
| CN106189253B (en) * | 2016-07-13 | 2019-05-24 | 乐清市华仪电缆附件有限公司 | Chilling shrink type cable accessory silastic material and preparation method thereof |
| CN106229044A (en) * | 2016-08-29 | 2016-12-14 | 江苏鹏申高温线缆有限公司 | A kind of silicon rubber insulation braided wire and technique thereof |
| CN107815121A (en) * | 2017-11-13 | 2018-03-20 | 董绍光 | A kind of preparation method of silicon rubber compound die binder |
| CN109679348B (en) * | 2018-11-27 | 2021-04-30 | 东莞市朗晟材料科技有限公司 | Flame-retardant silicone rubber and continuous production process and continuous production system thereof |
| CN110408213A (en) * | 2019-07-15 | 2019-11-05 | 安徽伊法拉电力科技有限公司 | A kind of chilling shrink type cable accessory silicon rubber and preparation method thereof |
| CN112570232A (en) * | 2020-11-13 | 2021-03-30 | 四川航天燎原科技有限公司 | Rapid curing method of vulcanized silicone rubber |
| CN112570232B (en) * | 2020-11-13 | 2023-01-13 | 四川航天燎原科技有限公司 | Rapid curing method of vulcanized silicone rubber |
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