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High-damping silicon rubber

A silicone rubber and high damping technology, applied in the field of high damping silicone rubber, can solve the problems of restricting the development of silicone rubber and low damping value of silicone rubber, and achieve the effects of good shock absorption, high damping value and low cost

Inactive Publication Date: 2015-06-24
SUZHOU JIN TENG ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to its unique Si-O molecular chain structure, silicone rubber has excellent properties such as high temperature resistance, low temperature resistance, aging resistance, and thermal conductivity. It is more and more widely used in the fields of aerospace, automobiles, ships, and office products. However, due to the low damping value of silicone rubber, the development of silicone rubber in the field of shock absorption is limited, so it is necessary to improve the damping performance of silicone rubber

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0012] A kind of high damping silicone rubber, by weight, it comprises the following components,

[0013]

[0014] Among them, the vinyl content of the methyl vinyl silicone rubber is about 0.15 mol%, and the molecular weight is about 600,000. The low phenyl silicone rubber has a phenyl content of approximately 8 mol % and a vinyl content of approximately 0.13 mol %. Since the price of low phenyl silicone rubber is more expensive than methyl vinyl silicone rubber, in order to reduce the production cost, the amount of low phenyl silicone rubber is less than that of methyl vinyl silicone rubber.

[0015] The anti-aging agent is a diaryl secondary amine anti-aging agent.

[0016] The damping additive is a mixture of polysiloxane and polyurethane.

[0017] The preparation method of the high-damping silicone rubber is roughly as follows: by weight, 150 parts of methyl vinyl silicone rubber and 50 parts of low-phenyl silicone rubber are placed on a double-roller rubber mixing m...

Embodiment 2

[0019] A kind of high damping silicone rubber, by weight, it comprises the following components,

[0020]

[0021] Wherein the anti-aging agent is p-phenylenediamine anti-aging agent.

[0022] The damping additive is acrylate.

[0023] All the other are with embodiment 1.

[0024] The preparation method of the high-damping silicone rubber is roughly as follows: in parts by weight, 200 parts of methyl vinyl silicone rubber and 80 parts of low-phenyl silicone rubber are placed on a double-roller rubber mixing machine; after wrapping, add 65 parts of carbon black, 45 parts of graphite, 20 parts of vinyl silicone oil, 13 parts of phenylmethyl silicone oil, 15 parts of zinc oxide, 8 parts of stearic acid, 4 parts of antioxidant, 4 parts of pine tar oil, 23 parts of alkane oil, 4 parts of silane coupling agent and 30 parts of damping additive, after kneading, thin pass 2 times to produce the film; then add 13 parts of vulcanizing agent double 25, continue to mix evenly, and fin...

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Abstract

The invention discloses high-damping silicon rubber comprising the following components in parts by weight: 150-200 parts of methyl vinyl silicone rubber, 50-80 parts of low-phenyl silicon rubber, 40-65 parts of carbon black, 40-45 parts of graphite, 14-20 parts of vinyl silicone oil, 8-13 parts of phenyl methyl silicone oil, 5-15 parts of zinc oxide, 5-8 parts of stearic acid, 6-13 parts of 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, 2-4 parts of an anti-aging agent, 2-4 parts of pine tar, 5-23 parts of alkane oil, 2-4 parts of a silane coupling agent and 17-30 parts of a damping additive. The high-damping silicon rubber disclosed by the invention has the advantages of low cost, high damping value, good shock absorption effect and the like.

Description

technical field [0001] The invention relates to a rubber product, in particular to a high damping silicone rubber. Background technique [0002] Due to its unique Si-O molecular chain structure, silicone rubber has excellent properties such as high temperature resistance, low temperature resistance, aging resistance, and thermal conductivity. It is more and more widely used in the fields of aerospace, automobiles, ships, and office products. However, due to the low damping value of silicone rubber, the development of silicone rubber in the field of shock absorption is limited, so it is necessary to improve the damping performance of silicone rubber. Contents of the invention [0003] The object of the present invention is to provide a high-damping silicone rubber with low cost, high damping value and good shock-absorbing effect for the above-mentioned defects in the prior art. [0004] In order to achieve the above invention, the present invention adopts the following tec...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/04C08K13/02C08K3/04C08K3/22C08K5/09C08K5/54
Inventor 张国青孙政良
Owner SUZHOU JIN TENG ELECTRONICS TECH
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