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Foamed silicone rubber core material and foamed heat-insulating buffer composite material

A technology of foamed silicone rubber and foamed heat insulation, which is applied in the field of foamed silicon rubber core materials and foamed heat insulation buffer composite materials, can solve the problem of not meeting the performance requirements of high-end products, flame retardant performance, and poor heat insulation performance Waiting for a question

Active Publication Date: 2021-03-12
常州市沃科科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In summary, silicone rubber has good temperature resistance, weather resistance, oil resistance, insulation performance and flexibility, so it is widely used in many fields, but its performance in flame retardancy and heat insulation performance is not very good , although studies have shown that the modification of silicone rubber can improve the flame retardancy and heat insulation performance of silicone rubber, but it still does not meet the performance requirements of high-end products

Method used

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  • Foamed silicone rubber core material and foamed heat-insulating buffer composite material
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  • Foamed silicone rubber core material and foamed heat-insulating buffer composite material

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preparation example Construction

[0054] Another aspect of the present invention provides the preparation method of the foamed silicone rubber core material described in the first aspect of the present invention, the preparation method comprising: methyl vinyl silicone rubber, white carbon black, flame retardant, hydroxyl silicone oil, sea foam It is prepared by mixing stone, muscovite, wollastonite, heat stabilizer, foaming agent and vulcanizing agent.

[0055] In the preparation method of the foamed silicone rubber core material provided by the present invention, each raw material can be mixed according to the proportion provided by the first aspect of the present invention. Specifically, the flame retardant silicone rubber can be prepared by blending methyl vinyl silicone rubber, white carbon black, hydroxyl silicone oil, flame retardant, and heat stabilizer first. Then, muscovite is added to the flame-retardant silicone rubber, and the flame-retardant and heat-insulating silicone rubber is prepared by blen...

Embodiment 1

[0075]a. By adding 30 parts of white carbon black, 5 parts of hydroxyl silicone oil, 50 parts of silane-coated ammonium polyphosphate, 5 parts of zinc oxide, and 3 parts of titanium dioxide to 100 parts of methyl vinyl silicone rubber, the barrier is prepared by blending technology. Burn silicone rubber.

[0076] b. Add 50 parts of muscovite to flame-retardant silicone rubber, and prepare flame-retardant and heat-insulating silicone rubber by blending technology.

[0077] c. Add 3 parts of OBSH foaming agent, 5 parts of sodium bicarbonate, and 1 part of double 24 vulcanizing agent to the flame-retardant and heat-insulating silicone rubber, and mix well to obtain foamed flame-retardant and heat-insulating silicone rubber.

[0078] d. Through hot air foaming and vulcanization at a high temperature of 200-280 ° C, the foamed flame-retardant and heat-insulating silicone rubber is foamed and molded, and then processed into a foam core material of required size and specification.

...

Embodiment 2

[0081] a. By adding 30 parts of white carbon black, 5 parts of hydroxyl silicone oil, 50 parts of silane-coated ammonium polyphosphate, 5 parts of zinc oxide, and 3 parts of titanium dioxide to 100 parts of methyl vinyl silicone rubber, the barrier is prepared by blending technology. Burn silicone rubber.

[0082] b. Add 50 parts of sepiolite to flame-retardant silicone rubber, and prepare flame-retardant and heat-insulating silicone rubber by blending technology.

[0083] c. Add 3 parts of OBSH foaming agent, 5 parts of sodium bicarbonate, and 1 part of double 24 vulcanizing agent to the flame-retardant and heat-insulating silicone rubber, and mix well to obtain foamed flame-retardant and heat-insulating silicone rubber.

[0084] d. Through hot air foaming and vulcanization at a high temperature of 200-280 ° C, the foamed flame-retardant and heat-insulating silicone rubber is foamed and molded, and then processed into a foam core material of required size and specification. ...

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Abstract

The invention relates to the technical field of modified silicone rubber, in particular to a foamed silicone rubber core material and a foamed thermal insulation buffer composite material. Raw materials of the foamed silicone rubber core material can comprise methyl vinyl silicone rubber, white carbon black, a flame retardant, hydroxyl silicone oil, heat insulation powder, a heat stabilizer, a foaming agent and a vulcanizing agent. The foamed silicone rubber core material provided by the invention has excellent buffer performance, flame retardant performance and heat insulation performance. Due to the lamellar space structure of an outer inorganic mica layer, the outer inorganic mica layer has excellent heat insulation performance, so that the composite material also has excellent heat insulation performance.

Description

technical field [0001] The invention relates to the technical field of modified silicone rubber, in particular to a foamed silicone rubber core material and a foamed heat-insulating and buffering composite material. Background technique [0002] The main chain of silicone rubber is composed of silicon and oxygen atoms alternately, and there are usually two organic rubber groups attached to the silicon atoms. Ordinary silicone rubber is mainly composed of silicone chains containing methyl groups and a small amount of vinyl groups. The introduction of phenyl can improve the high and low temperature resistance of silicone rubber, and the introduction of trifluoropropyl and cyano can improve the temperature and oil resistance of silicone rubber. Silicone rubber has good low temperature resistance, and generally can still work at -55°C. After introducing phenyl, it can reach -73°C. The heat resistance of silicone rubber is also outstanding. It can work for a long time at 180 °...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/04C08K9/10C08K9/06C08K3/32C08K7/26C08K3/34C08K13/06C08J9/10C08J9/08C08J9/00B32B9/00B32B9/04B32B25/20
CPCC08J9/105C08J9/08C08J9/0061C08J9/0095B32B5/18B32B5/16B32B5/30C08J2383/07C08J2483/04C08J2203/02C08J2203/04C08J2203/18C08K9/10C08K9/06C08K2003/323C08K7/26C08K3/34C08K3/346C08K13/06B32B2264/104B32B2266/0207B32B2307/304B32B2307/56
Inventor 张磊郑亚森臧育锋秦克良宋永琦陈玲聪
Owner 常州市沃科科技有限公司
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