Novel silicone rubber containing phenyl-terminated methylvinyl(tetraphenyl)phenyl

A technology of terminal methyl vinyl group and silicone rubber, applied in the field of silicone rubber, can solve the problem that the performance of ordinary high temperature resistant silicone cannot meet the requirements, and achieve the effect of expanding the scope of use, improving heat resistance and strong steric hindrance effect.

Inactive Publication Date: 2017-01-11
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the performance of ordinary high-temperature-resistant silica gel produced cannot meet the requirements

Method used

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  • Novel silicone rubber containing phenyl-terminated methylvinyl(tetraphenyl)phenyl

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Install a stirrer, condenser tube, and thermometer on a 500ml three-neck round bottom flask. And connect the vacuum filter. Place the three-neck flask in the oil bath. In the three-necked flask, add 230g octamethylcyclotetrasiloxane and 60g tetramethyltetravinylcyclotetrasiloxane, heat up to 90 degrees, N 2 Under protection, vacuumize to -0.08MPa with magnetic stirring, and dehydrate for one hour. Add 8g of tetraphenyldivinyldisiloxane and 6g of tetramethylammonium hydroxide, raise the temperature to 110°C, and react for three hours. Then raise the temperature of the system to 160° C., react for 1 hour to decompose the catalyst, and evaporate the low boilers under reduced pressure to obtain the liquid product, phenyl-terminated methyl vinyl silicone oil. Mix, stir well and set aside.

[0031] (2) Add polyphenyl-terminated methylvinyl silicone oil, tetraphenylcyclopentadienone, and a mass ratio of 5.03:1 into a 70ml reaction kettle, at a temperature of 200°C unde...

Embodiment 2

[0034] (1) Install a stirrer, condenser tube, and thermometer on a 500ml three-neck round bottom flask. And connect the vacuum filter. Place the three-neck flask in the oil bath. In the three-necked flask, add 230g octamethylcyclotetrasiloxane and 60g tetramethyltetravinylcyclotetrasiloxane, heat up to 90 degrees, N 2 Under protection, vacuumize to -0.08MPa with magnetic stirring, and dehydrate for one hour. Add 8g of tetraphenyldivinyldisiloxane and 6g of tetramethylammonium hydroxide, raise the temperature to 110°C, and react for three hours. Then raise the temperature of the system to 160° C., react for 1 hour to decompose the catalyst, and evaporate the low boilers under reduced pressure to obtain the liquid product, phenyl-terminated methyl vinyl silicone oil. Mix, stir well and set aside.

[0035] (2) Add polyphenyl-terminated methylvinyl silicone oil, tetraphenylcyclopentadienone, and a mass ratio of 5.03:1 into a 70ml reaction kettle, at a temperature of 200°C unde...

Embodiment 3

[0038] (1) Install a stirrer, condenser tube, and thermometer on a 500ml three-neck round bottom flask. And connect the vacuum filter. Place the three-neck flask in the oil bath. In the three-necked flask, add 230g octamethylcyclotetrasiloxane and 60g tetramethyltetravinylcyclotetrasiloxane, heat up to 90 degrees, N 2 Under protection, vacuumize to -0.08MPa with magnetic stirring, and dehydrate for one hour. Add 8g of tetraphenyldivinyldisiloxane and 6g of tetramethylammonium hydroxide, raise the temperature to 110°C, and react for three hours. Then raise the temperature of the system to 160° C., react for 1 hour to decompose the catalyst, and evaporate the low boilers under reduced pressure to obtain the liquid product, phenyl-terminated methyl vinyl silicone oil. Mix, stir well and set aside.

[0039] (2) Add polyphenyl-terminated methylvinyl silicone oil, tetraphenylcyclopentadienone, and a mass ratio of 5.03:1 into a 70ml reaction kettle, at a temperature of 200°C unde...

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Abstract

Novel silicone rubber containing phenyl-terminated methylvinyl(tetraphenyl)phenyl relates to silicone rubber; the invention relates to novel silicone rubber containing phenyl-terminated methylvinyl(tetraphenyl)phenyl, made from, by weight, 100 parts of 107 silicone rubber of specific viscosity, 10 parts of a reinforcing agent, 10 parts of a heat resistant additive, 10 parts of a cross-linking agent, 5 parts of a catalyst, and 10 parts of an aid. The novel silicone rubber can be kept elastic in a wide temperature range, has good adhesion with various base materials, and has good tolerance to high temperature; by adding the rubber containing phenyl-terminated methylvinyl(tetraphenyl)phenyl to the silicone rubber, heat resistance of the silicone rubber is improved and the applicable range of the silicone rubber is widened.

Description

technical field [0001] The invention relates to a silicone rubber, in particular to a new silicone rubber containing phenyl-terminated methylvinyl (tetraphenyl)phenyl. Background technique [0002] Silicone rubber refers to a type of elastomer whose molecular main chain is -Si-O- inorganic structure and side chain is organic group. Silicone rubber is a semi-inorganic saturated, heterochain, non-polar elastomer. Silicone rubber has excellent heat resistance, cold resistance, dielectric properties, ozone resistance and atmospheric aging resistance. The outstanding performance of silicone rubber is that it can be used in a wide temperature range, which can be used at -60°C (or lower temperature) to +250°C. ℃ (or higher temperature) for long-term use. [0003] High temperature resistant silica gel is a common performance of silica gel products. Ordinary silica gel can withstand a high temperature between 200 and 300 degrees Celsius. However, under certain conditions, there are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/06C08L83/07C08L83/05C08K3/36C08K3/22
CPCC08L83/06C08L2205/025C08L2205/03C08L83/04C08K3/36C08K2003/2241
Inventor 葛铁军张煜欣肖尚雄张瑾赵越
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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