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Silicone rubber with low compression deformation rate

A deformation rate, low compression technology, applied in the field of low compression deformation rate silicone rubber, can solve the problems of poor physical and mechanical properties, poor oil resistance, solvent resistance, poor tensile strength and tear strength and other mechanical properties , to achieve a wide range of use, reduce volume wear, improve mechanical properties and surface resistance.

Inactive Publication Date: 2015-03-11
滁州君越高分子新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mechanical properties of silicone rubber such as tensile strength and tear resistance are poor, and its physical and mechanical properties are not as good as most synthetic rubbers at room temperature. Poor, so silicone rubber is not suitable for ordinary conditions, so adding various additives to silicone rubber to improve its inherent properties can improve its overall quality and improve its applicability in various fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of silicone rubber with low compression set is characterized in that it is made up of the raw materials of following parts by weight:

[0023] Polybutylacrylate 3, iron isooctanoate 0.5, calcium hexafluoroacetylacetonate 0.6, polyvinylidene fluoride 5, polydimethylsiloxane 0.8, ammonium fluorozirconate 2, calcium fluoride 3, diphenylimidazoline 0.4 , Acetyl tributyl citrate 10, accelerator TL2, wollastonite powder 30, rosin 1-2, ammonium zirconium carbonate 0.6, methyl vinyl phenyl silicone rubber 106, 2,5-dimethyl-2,5- Bis(tert-butylperoxy)hexane 1, rare earth additive 3;

[0024] Described rare earth additive is made up of the following raw materials of weight part:

[0025] Aluminum magnesium silicate 2, polyvinyl acetal 16, dodecanedioic acid 2, lanthanum chloride 6, methyl nylon acid 0.4, urea 0.6, formaldehyde 4, deionized water 130, ethylenediamine 0.3, calcium zeolite 50 ;

[0026] Mix dodecanedioic acid and lanthanum chloride, add 30% of the weight of...

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Abstract

The invention discloses silicone rubber with a low compression deformation rate. The silicone rubber comprises the following raw materials in parts by weight: 2 to 3 parts of poly (butyl acrylate), 0.5 to 1 part of Iron (III) 2-ethylhexanoate, 0.3 to 0.6 part of calcium hexafluoroacetyl-acetonate, 4 to 5 parts of polyvinylidene fluoride, 0.8 to 1 part of polydimethylsiloxane, 1 to 2 parts of ammonium zirconium hexafluoride, 2 to 3 parts of calcium fluoride, 0.4 to 1 part of diphenyl imidazoline, 6 to 10 parts of acetyl tributyl citrate, 1 to 2 parts of a promoter TL, 20 to 30 parts of silicon ash powder, 1 to 2 parts of rosin, 0.6 to 1 part of ammonium zirconium carbonate, 100 to 106 parts of methyl phenyl vinyl silicone rubber, 1 to 2 parts of 2, 5- dimethyl-2, 5-bi(tert butyl peroxide) hexane, and 3 to 5 parts of a rare earth additive. The silicone rubber has the advantages of high resilience and low compression set property, high surface strength, good resistance, strong corrosion and aging resistance, good applicability to the environment, and wide application range.

Description

technical field [0001] The invention mainly relates to the field of rubber, in particular to a silicone rubber with a low compression deformation rate. Background technique [0002] 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. °C (or higher temperature) for long-term use. However, the mechanical properties of silicone rubber such as tensile strength and tear resistance are poor, and its physical and mechanical properties are not as good as most synthetic rubbers at room temperature. Therefore, silicone rubber is not suitable for use in ordinary conditions. Therefore, adding various additives to silicone rubber to improve its inherent properties can improve its overall quality and improve its applicability in various field...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L33/08C08L27/16C08L83/04C08L29/14C08K13/06C08K9/04C08K3/16C08K3/34C08K5/098C08K3/24C08K5/11
Inventor 任兆军
Owner 滁州君越高分子新材料有限公司
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