Modified ethylene propylene diene monomer composite gasket material, and preparation method thereof

A technology of EPDM rubber and composite gasket, which is applied in the field of modified EPDM composite gasket material and its preparation, can solve the problems of unsatisfactory sealing effect, low strength, poor wear resistance, etc. Low, good mechanical properties, good wear resistance effect

Inactive Publication Date: 2014-03-19
蚌埠赛英电子科技发展有限公司
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  • Summary
  • 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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  • Modified ethylene propylene diene monomer composite gasket material, and preparation method thereof
  • Modified ethylene propylene diene monomer composite gasket material, and preparation method thereof

Examples

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Embodiment Construction

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

[0010] A modified EPDM composite gasket material, made of the following raw materials in parts by weight (kg): EPDM rubber 30, monopolychlorohydrin rubber 52, copolychlorohydrin rubber 12, stearin Zinc acid 4, antioxidant RD1, electric furnace dust 10, silicon powder 2, sulfur 1.5, accelerator DM2, N351 carbon black 35, N660 carbon black 14, dioctyl maleate 10, modified attapulgite 10;

[0011] The modified attapulgite is made of the following raw materials in parts by weight (kg): attapulgite 20, clay 13, 1,6-hexamethylene diisocyanate 4, tripropylene glycol diacrylate 2, light calcium carbonate 2 , zinc oxide 1, wollastonite powder 3, magnesium hydroxide 10, chlorinated paraffin 1, diatomaceous earth 4, tributyl citrate 2, jade powder 8, pepper seed oil 1; the preparation method is to mix attapulgite, clay , diatomaceous earth mixed into the calciner, calcined at 700-720 ° C for 3-4 ...

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PUM

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Abstract

The invention discloses a modified ethylene propylene diene monomer composite gasket material, and a preparation method thereof. The modified ethylene propylene diene monomer composite gasket material comprises following raw materials, by weight, 30 to 35 parts of ethylene propylene diene monomer, 52 to 57 parts of unitary epichlorohydrin rubber, 12 to 18 parts of copolyepichlorohydrin rubber, 4 to 5 parts of zinc stearate, 1 to 3 parts of antioxidant RD, 10 to 15 parts of electric furnace fly ash, 2 to 3 parts of silica powder, 1.5 to 3 parts of sulphur, 2 to 4 parts of promoter DM, 35 to 40 parts of N351 carbon black, 14 to 18 parts of N660 carbon black, 10 to 12 parts of dioctyl maleate, and 10 to 12 parts of modified attapulgite. According to the modified ethylene propylene diene monomer composite gasket material, modified attapulgite is added, so that processing properties of the modified ethylene propylene diene monomer composite gasket material are improved; and environmental friendly accessory ingredients are used, so that toxic and side effects are reduced, and pollution on the environment is reduced. The modified ethylene propylene diene monomer composite gasket material possesses excellent mechanical properties and elasticity, is low in compressive deformation, is high in abrasion resistance and leak tightness, is reasonable in formula, is simple in technology, is low in cost, and is suitable for industrialized production.

Description

technical field [0001] The invention relates to the field of processing rubber composite materials, in particular to a modified EPDM composite gasket 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/03C08L23/16C08K13/06C08K9/02C08K5/098C08K5/3437C08K3/34C08K3/04C08K3/06C08K5/47C08K5/11C08K5/29C08K5/103C08K3/26C08K3/22C08K5/02
Inventor 胡建强胡巍李丽
Owner 蚌埠赛英电子科技发展有限公司
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