Silicone rubber sealing gasket with high-pressure resistance and super wear resistance and preparation method thereof

A super wear-resistant, silicone rubber technology, applied in the field of rubber gaskets, can solve the problems of short service life, poor pressure resistance and wear resistance, etc., to achieve long service life, improved physical and chemical properties, and a wide range of applications Effect

Inactive Publication Date: 2016-08-17
HUAINAN CAOAN RUNLONG PLASTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of science and technology and industry, the performance requirements of silicone rubber sealing materials are getting higher and higher. The existing silicone rubber gaskets on the market have the disadvantages of poor pressure resistance and wear resistance, resulting in a short service life. , unable to meet market demand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] A high-pressure and super wear-resistant silicone rubber gasket, made of the following raw materials (kg): methyl vinyl silicone rubber 56, polyurethane rubber 42, polybutene 16, polyamide thermoplastic elastomer 32, carbon black N220 30. Zinc oxide 2.5, stearic acid 3.5, colloidal sulfur 6, γ-mercaptopropyltriethoxysilane 2.5, 4,4'-methylenebis(2-chloroaniline) 4, titanium diboride 19, Pine tar 8, Darmar resin 12, accelerator PX 2.5, accelerator OTOS 1.5, antioxidant KY-405 1.5, antioxidant 1076 2, modifier 16;

[0015] The preparation method of the modifier is as follows: (1) take the following raw materials in weight (kg): sea ball stone 22, needle coke 14, polymerized ferrophosphorus powder 15, nanometer aluminum titanate 13, methylene dinaphthalene sulfonate Sodium sulfosuccinate 3.5, sodium dioctyl sulfosuccinate 2.5, cetearyl glucoside 2, polypropylene glycol 200 8, tri-n-butylamine 6, octyldodecyl mescemate 4; (2) take sea Ball stones and needle coke are mixed,...

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PUM

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Abstract

The invention discloses a silicone rubber sealing gasket with high-pressure resistance and super wear resistance and a preparation method thereof. The silicone rubber sealing gasket is prepared from, by weight, 42-68 parts of methylvinyl silicone rubber, 34-56 parts of polyurethane rubber, 12-18 parts of polybutylene, 23-37 parts of polyamide thermoplastic elastomer, 25-35 parts of carbon black N220, 2-3 parts of zinc oxide, 3-4 parts of stearic acid, 5-7 parts of colloidal sulfur, 2-3 parts of gamma-thiopropyl triethoxy silane, 3-5 parts of 4,4'-methylenebis(2-chloroaniline), 16-22 parts of titanium diboride, 7-9 parts of pine tar, 10-15 parts of gum dammar, 2-3 parts of an accelerator PX, 1-2 parts of an accelerator OTOS, 1-2 parts of an antioxidant KY-405, 1-2 parts of an antioxidant 1076 and 14-18 parts of a modifier. The silicone rubber sealing gasket has the advantages of high strength, high elasticity, super wear resistance, tear resistance, aging resistance, ozone resistance, corrosion resistance and the like, and is long in service life and wide in application range.

Description

technical field [0001] The invention relates to a rubber sealing gasket, in particular to a high-pressure-resistant super-abrasion-resistant silicon rubber sealing gasket and a preparation method thereof. Background technique [0002] Silicone rubber has outstanding high and low temperature resistance, maintains good elasticity in the temperature range of -70°C to +260°C, is resistant to ozone, weathering and aging, and has excellent properties such as waterproof, flame retardant, high temperature resistance, electrical conductivity, and oil resistance. Performance, suitable for making sealing gaskets required in thermal mechanisms, such as sealing gaskets, valve pads, oil seals (suitable for water media), etc. Special silicone rubber can be used to make oil seals. With the rapid development of science and technology and industry, the performance requirements of silicone rubber sealing materials are getting higher and higher. The existing silicone rubber gaskets on the marke...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L75/04C08L77/00C08L23/20C08K13/06C08K9/04C08K3/04C08K3/22C08K5/09B29C35/02
CPCB29C35/02C08K2201/011C08L83/04C08L2201/08C08L2205/035C08L2207/04C08L75/04C08L77/00C08L23/20C08K13/06C08K9/04C08K3/04C08K2003/2296C08K5/09
Inventor 徐良建张群
Owner HUAINAN CAOAN RUNLONG PLASTIC CO LTD
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