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Fused method silica modified silicone rubber composite material

A technology of silica and composite materials, applied in the field of silicone rubber, which can solve the problems of unsatisfactory aging resistance, low strength and poor mechanical properties.

Inactive Publication Date: 2018-08-28
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, silicone rubber also has some defects of poor mechanical properties. When used in advanced fields such as aerospace and nuclear power, it has the defects of low strength and unsatisfactory aging resistance, which limits its application.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0014] The present invention proposes a silicon dioxide modified silicon rubber composite material by gas phase method, its raw materials include: 90 parts of methyl vinyl silicone rubber, 10 parts of methyl phenyl silicone rubber, 26 parts of fluorine rubber, gas phase method 15 parts of silicon dioxide, 10 parts of carbon nanotubes, 2 parts of graphite, 9 parts of nano-alumina, 5 parts of boron nitride, 11 parts of montmorillonite, 0.8 parts of vulcanizing agent, 1.3 parts of methyl silicone oil, methyl triacetoxy 1 part of base silane, 1 part of ethyl orthosilicate.

Embodiment 2

[0016] The present invention proposes a silicon dioxide modified silicon rubber composite material by gas phase method, its raw materials include: 80 parts of methyl vinyl silicone rubber, 20 parts of methyl phenyl silicone rubber, 10 parts of fluorine rubber, gas phase method 32 parts of silicon dioxide, 2 parts of carbon nanotubes, 9 parts of graphite, 2 parts of nano-alumina, 12 parts of boron nitride, 6 parts of montmorillonite, 1.8 parts of vulcanizing agent, 0.2 parts of methyl silicone oil, methyl triacetoxy 3.5 parts of base silane, 2.5 parts of ethyl orthosilicate.

Embodiment 3

[0018] A kind of silicon dioxide modified silicon rubber composite material by gas phase method proposed by the present invention, its raw materials include by weight: 87 parts of methyl vinyl silicone rubber, 13 parts of methyl phenyl silicone rubber, 21 parts of fluorine rubber, gas phase method 19 parts of silicon dioxide, 8.5 parts of carbon nanotubes, 5 parts of graphite, 8 parts of nano-alumina, 7 parts of boron nitride, 10 parts of montmorillonite, 0.9 parts of vulcanizing agent, 1 part of methyl silicone oil, methyl triacetoxy 1.6 parts of silane, 2.1 parts of ethyl orthosilicate;

[0019] Wherein, in the methylphenyl silicone rubber, the phenyl content is 18wt%;

[0020] The fumed silica is modified fumed silica; the modified fumed silica is prepared according to the following process: the fumed silica is added with double decyl dimethyl ammonium bromide and dodecyl In the aqueous ethanol solution of alkyldimethylbenzylammonium chloride, stir evenly and add hydrogen-...

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Abstract

The invention discloses a fused method silica modified silicone rubber composite material. The fused method silica modified silicone rubber composite material is prepared from the following raw materials in parts by weight: 80 to 90 parts of methyl vinyl silicone rubber, 10 to 20 parts of methyl phenyl silicone rubber, 10 to 26 parts of fluorine rubber, 15 to 32 parts of fumed silica, 2 to 10 parts of carbon nanotube, 2 to 9 parts of graphite, 2 to 9 parts of nano-alumina, 5 to 12 parts of boron nitride, 6 to 11 parts of montmorillonite, 0.8 to 1.8 parts of vulcanizing agent, 0.2 to 1.3 partsof methyl silicone oil, 1 to 3.5 parts of methyltriacetoxysilane and 1 to 2.5 parts of tetraethyl orthosilicate. The fused method silica modified silicone rubber composite material provided by the invention has high strength, excellent high-temperature resistance and excellent aging resistance.

Description

technical field [0001] The invention relates to the technical field of silicone rubber, in particular to a silicon dioxide-modified silicone rubber composite material obtained by gas phase method. Background technique [0002] Silicone rubber has excellent properties such as high and low temperature resistance, weather resistance, ozone resistance, dielectric properties, and physiological inertness. Currently, as a special rubber, it has an irreplaceable position in many high-tech fields. However, silicone rubber also has some defects of poor mechanical properties. When used in advanced fields such as aerospace and nuclear power, it has the defects of low strength and unsatisfactory aging resistance, which limits its application. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a fumed silica-modified silicone rubber composite material, which has high strength, excellent high temperatur...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/04C08L101/04C08K13/06C08K3/36C08K3/04C08K3/22C08K3/38
CPCC08L83/04C08K2003/2227C08K2003/385C08K2201/011C08L2201/08C08L2205/025C08L2205/035C08L101/04C08K13/06C08K3/36C08K3/041C08K3/042C08K3/22C08K3/38
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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