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Ethylene propylene diene monomer sealing element

A technology of EPDM rubber and seals, which is applied in the field of seals, can solve the problems of poor impact resistance, high cost of EPDM seals, wear resistance and toughness that cannot meet the requirements, and achieve improved ozone resistance and low temperature resistance, strong interfacial force, and excellent miscibility

Inactive Publication Date: 2017-05-31
安徽亚兰密封件股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under normal circumstances, when producing seal products, EPDM seals still have problems such as high cost, poor impact resistance, wear resistance and toughness that cannot meet the requirements, etc., which need to be solved urgently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A kind of EPDM sealing part proposed by the present invention, its raw material comprises by weight: 40 parts of EPDM rubber, 40 parts of styrene-butadiene rubber, 15 parts of polyurethane rubber, 30 parts of polypropylene fiber, 4 parts of glass fiber , 25 parts of alumina whiskers, 4 parts of sepiolite powder, 4 parts of naphthenic oil, 2 parts of silane coupling agent, 4 parts of dimethyl phosphite, 1 part of chlorinated paraffin, 1.3 parts of dibutyl phthalate , 2 parts of phenolic resin, 0.9 parts of sodium persulfate, 1.5 parts of 1,1,3,3-tetramethylbutyl hydroperoxide, and 5 parts of anti-aging agent.

Embodiment 2

[0016] A kind of EPDM rubber seal that the present invention proposes, its raw material comprises by weight: 60 parts of EPDM rubber, 20 parts of styrene-butadiene rubber, 25 parts of polyurethane rubber, 20 parts of polypropylene fiber, 10 parts of glass fiber , 15 parts of alumina whiskers, 8 parts of sepiolite powder, 2 parts of naphthenic oil, 4 parts of silane coupling agent, 2 parts of dimethyl phosphite, 2 parts of chlorinated paraffin, 0.5 parts of dibutyl phthalate , 4 parts of phenolic resin, 0.3 parts of sodium persulfate, 2.5 parts of 1,1,3,3-tetramethylbutyl hydroperoxide, and 2 parts of anti-aging agent.

Embodiment 3

[0018] A kind of EPDM sealing part proposed by the present invention, its raw material comprises by weight: EPDM rubber 45 parts, styrene-butadiene rubber 35 parts, polyurethane rubber 20 parts, polypropylene fiber 28 parts, glass fiber 6 parts , 22 parts of alumina whiskers, 5 parts of sepiolite powder, 3.5 parts of naphthenic oil, 2.5 parts of silane coupling agent, 3.5 parts of dimethyl phosphite, 1.3 parts of chlorinated paraffin, 1.1 parts of dibutyl phthalate , 2.5 parts of phenolic resin, 0.7 parts of sodium persulfate, 1.8 parts of 1,1,3,3-tetramethylbutyl hydroperoxide, and 4 parts of anti-aging agent.

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PUM

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Abstract

The invention discloses an ethylene propylene diene monomer sealing element, prepared from the following raw materials in parts by weight: 40-60 parts of ethylene propylene diene monomer, 20-40 parts of styrene-butadiene rubber, 15-25 parts of polyurethane rubber, 20-30 parts of polypropylene fibers, 4-10 parts of glass fibers, 15-25 parts of alumina whiskers, 4-8 parts of sepiolite powder, 2-4 parts of naphthenic oil, 2-4 parts of a silane coupling agent, 2-4 parts of dimethyl phosphite, 1-2 parts of chlorinated paraffin, 0.5-1.3 parts of dibutyl phthalate, 2-4 parts of phenolic resin, 0.3-0.9 part of sodium persulfate, 1.5-2.5 parts of 1,1,3,3-tetramethylbutyl hydroperoxide and 2-5 parts of an anti-aging agent. The ethylene propylene diene monomer sealing element has good toughness, excellent shock and abrasion resistance, good corrosion and aging resistance, easily available raw materials and low production cost.

Description

technical field [0001] The invention relates to the technical field of seals, in particular to a EPDM seal. Background technique [0002] EPDM rubber has strong weather resistance, corrosion resistance, ozone resistance, electrical insulation, low compression set, high strength and high elongation, etc., and is widely used in the electrical and electronic industries to prevent gas leakage caused by effect of insulation failure. Under normal circumstances, when producing seal products, EPDM seals still have problems such as high cost, poor impact resistance, wear resistance and toughness that cannot meet the requirements, etc., which need to be solved urgently. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a EPDM sealing member with good toughness, excellent impact resistance and wear resistance, good corrosion resistance and aging resistance, easy to obtain raw materials, and low pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L9/06C08L75/04C08L23/12C08L91/06C08L61/06C08K13/04C08K7/14C08K7/08C08K5/14C08K3/30C08K3/34C08K5/524C08K5/12
CPCC08L23/16C08L9/06C08L2201/08C08L2205/035C08L2205/16C08L75/04C08L23/12C08L91/06C08L61/06C08K13/04C08K7/14C08K7/08C08K5/14C08K3/30C08K3/34C08K5/524C08K5/12
Inventor 黄炳喜杨浩
Owner 安徽亚兰密封件股份有限公司
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