High-strength and high-temperature-resistant silicon rubber composite

A technology of high temperature resistant silicone rubber and composite materials, which is applied in the field of silicone rubber, can solve the problems of low strength, strength and high temperature resistance that cannot meet the requirements of use, and achieve the effect of improving mechanical strength and elasticity and improving processing performance

Inactive Publication Date: 2018-10-12
天长市荣盛有机硅科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pure silicone rubber also has the defect of low strength. When it is used in some special environments, such as aerospace, nuclear power and other high-precision fields, its strength and high temperature resistance still cannot meet the requirements of use, and it needs to be improved. sex

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A high-strength and high-temperature-resistant silicone rubber composite material proposed by the present invention, its raw materials include by weight: 100 parts of silicone rubber, 21 parts of EPDM rubber, 4 parts of polyurethane, 28 parts of fumed silica, carbon nanotubes 5 parts, 8 parts of graphite, 4 parts of nano calcium carbonate, 15 parts of mica iron oxide, 6 parts of montmorillonite, 9 parts of fly ash, 3 parts of calcium sulfate whiskers, 2.8 parts of zirconium fluoride, 0.9 parts of vulcanizing agent, 2 parts of base silicone oil, 1 part of hexamethylcyclotrisilazane, 3.8 parts of vinyltriethoxysilane, and 1 part of ethyl orthosilicate.

Embodiment 2

[0017] A high-strength and high-temperature-resistant silicone rubber composite material proposed by the present invention, its raw materials include by weight: 100 parts of silicone rubber, 8 parts of EPDM rubber, 13 parts of polyurethane, 10 parts of fumed silica, carbon nanotubes 11 parts, 1 part of graphite, 13 parts of nano-calcium carbonate, 3 parts of mica iron oxide, 11 parts of montmorillonite, 2 parts of fly ash, 10 parts of calcium sulfate whiskers, 0.5 parts of zirconium fluoride, 2 parts of vulcanizing agent, 0.5 parts of base silicone oil, 2.5 parts of hexamethylcyclotrisilazane, 0.5 parts of vinyltriethoxysilane, and 2.5 parts of ethyl orthosilicate.

Embodiment 3

[0019] A high-strength and high-temperature-resistant silicone rubber composite material proposed by the present invention, its raw materials include by weight: 100 parts of silicone rubber, 17 parts of EPDM rubber, 6 parts of polyurethane, 21 parts of fumed silica, carbon nanotubes 7 parts, 7 parts of graphite, 6 parts of nano calcium carbonate, 12 parts of mica iron oxide, 8 parts of montmorillonite, 8.3 parts of fly ash, 6 parts of calcium sulfate whiskers, 2.3 parts of zirconium fluoride, 1.3 parts of vulcanizing agent, 1.8 parts of base silicone oil, 1.4 parts of hexamethylcyclotrisilazane, 3.2 parts of vinyltriethoxysilane, 1.4 parts of ethyl orthosilicate;

[0020] Wherein, the silicone rubber is methyl vinyl phenyl silicone rubber;

[0021] The fumed silica is modified fumed silica; the modified fumed silica is prepared according to the following process: adding fumed silica and didecyldimethylammonium bromide to water and In the mixed solution of ethanol, after stirr...

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PUM

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Abstract

The invention discloses a high-strength and high-temperature-resistant silicon rubber composite comprising the raw materials in parts by weight: 100 parts of silicon rubber, 8-21 parts of ethylene-propylene-diene rubber, 4-13 parts of polyurethane, 10-28 parts of fumed silica, 5-11 parts of carbon nanometer tubes, 1-8 parts of graphite, 4-13 parts of nanometer calcium carbonate, 3-15 parts of micairon oxide, 6-11 parts of montmorillonite, 2-9 parts of coal ash, 3-10 parts of calcium sulfate whiskers, 0.5-2.8 parts of zirconium fluoride, 0.9-2 parts of vulcanizing agent, 0.5-2 parts of methylsilicone oil, 1-2.5 parts of hexamethylcyclotrisilazane, 0.5-3.8 parts of vinyl tris(2-methoxyethoxy) silane and 1-2.5 parts of tetraethyl orthosilicate. The high-strength and high-temperature-resistant silicon rubber composite provided by the invention is good in high temperature resistance and strength and excellent in toughness and ageing resistance.

Description

technical field [0001] The invention relates to the technical field of silicone rubber, in particular to a high-strength and high-temperature-resistant silicone rubber composite material. Background technique [0002] Silicone resin is a thermosetting polysiloxane system with a highly cross-linked structure. It has excellent heat resistance, weather resistance, electrical insulation, oxidation resistance, radiation resistance, hydrophobicity and flame retardancy. It has been widely used in Aviation, aerospace, national defense, construction, electronics, machinery, sports, medical and biological engineering and many other fields. However, pure silicone rubber also has the defect of low strength. When it is used in some special environments, such as aerospace, nuclear power and other high-precision fields, its strength and high temperature resistance still cannot meet the requirements of use, and it needs to be improved. sex. Contents of the invention [0003] Based on th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L23/16C08L75/04C08K13/06C08K9/04C08K9/06C08K3/36C08K3/26C08K3/04
CPCC08L83/04C08K2003/265C08K2201/003C08K2201/011C08L2201/02C08L2201/08C08L2205/03C08L23/16C08L75/04C08K13/06C08K9/04C08K9/08C08K9/06C08K3/36C08K3/26C08K3/041
Inventor 张新华李保生
Owner 天长市荣盛有机硅科技有限公司
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