Combined rubber gasket material and preparation method thereof

A technology of rubber gasket and butyl rubber, which is applied in the field of combined rubber gasket material and its preparation, can solve the problems of low strength, poor wear resistance, unsatisfactory sealing effect, etc., achieve good thermal stability and oil resistance, improve Process performance, the effect of reducing toxic and side effects

Inactive Publication Date: 2014-03-19
TONGLING SIDE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing rubber gaskets have defects such as unsatisfactory sealing effect, poor wear resistance, and low strength, which are far from meeting the actual requirements.

Method used

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  • Combined rubber gasket material and preparation method thereof
  • Combined rubber gasket material and preparation method thereof

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Embodiment Construction

[0009] The present invention will be described in detail below through specific examples.

[0010] A combined rubber gasket material, made of the following raw materials in parts by weight (kg): butyl rubber (CBK139) 70, nitrile rubber 10, natural rubber 6, sulfur 1, polydimethylsiloxane 3, phenol 1. Zinc acetate 8, dibutyl maleate 6, isooctyl dithioglycolate di-n-octyl tin 1, zinc oxide 3, cork powder 10, N550 carbon black 24, modified attapulgite 10;

[0011] The modified attapulgite is made of the following raw materials in parts by weight (kg): attapulgite 20, toluene diisocyanate 3, trimethylolpropane triacrylate 2, medical stone 30, ascorbic acid 1, jade 2, Polyisobutylene 2, aluminate coupling agent DL-4111, Zanthoxylum bungeanum seed oil 1; the preparation method is to mix attapulgite, medical stone, and jade into a calciner and calcinate at 700-720°C for 3-4 hours, Cool, soak in 10-12% hydrochloric acid solution for 1-2 hours, filter and take out, wash with water and...

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Abstract

The invention discloses a combined rubber gasket material which is characterized in that the material is prepared from the following raw materials by weight: 70-75 parts of butyl rubber (CBK139), 10-15 parts of butadiene-acrylonitrile rubber, 6-8 parts of natural rubber, 1-2 parts of sulphur, 3-5 parts of polydimethylsiloxane, 1-2 parts of phenol, 8-10 parts of zinc acetate, 6-8 parts of dibutyl maleate, 1-2 parts of bis(isooctyl thioglycolate) di(n-octyl tin), 3-5 parts of zinc oxide, 10-12 parts of cork powder, 24-28 parts of N550 carbon black, and 10-12 parts of modified attapulgite. According to the invention, modified attapulgite is added, which improves rubber processing property; environment-friendly type compounding agents are used, which reduces toxic and side effects and environment pollution; the material of the invention has elasticity, good thermal stability, good oil resistance, and aging resistance.

Description

technical field [0001] The invention relates to the field of processing rubber composite materials, in particular to a combined rubber sealing pad material and a preparation method thereof. Background technique [0002] Gasket is a material used for sealing inside machinery, equipment, pipelines, etc. The gaskets currently used are mostly rubber gaskets, which are characterized by high temperature resistance, ozone resistance, natural aging resistance, vacuum resistance, fuel oil resistance, lubricating oil resistance, strong oxidant resistance, chemical resistance and good electrical insulation performance. Widely used in defense industry and civilian industry. However, the existing rubber gaskets have defects such as unsatisfactory sealing effect, poor wear resistance and low strength, which are far from meeting the actual requirements. Therefore researching and developing a kind of high-performance rubber gasket has become the task of top priority. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/22C08L9/02C08L97/02C08L7/00C08L83/04C08K13/06C08K9/04C08K3/34C08K3/06C08K5/13C08K5/098C08K5/11C08K3/22C08K3/04
CPCC08L23/22C08K2201/014C08L2201/08C08L2205/035C08L9/02C08L97/02C08L7/00C08L83/04C08K13/06C08K9/00C08K9/02C08K3/34C08K3/346C08K3/06C08K3/04C08K5/098
Inventor 孔华英
Owner TONGLING SIDE TECH
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