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Ethylene-Propylene-Diene Monomer (DPDM) rubber composition

A technology of EPDM rubber and composition, which is applied in the direction of hoses, mechanical equipment, pipes/pipe joints/pipe fittings, etc., can solve problems such as not meeting the requirements for the use of radiator hoses, improve service life, avoid clogging, Effect of improving heat resistance

Active Publication Date: 2012-04-18
TIANJIN PENGYI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In summary, sulfur vulcanized EPDM rubber can no longer meet the requirements for the use of radiator hoses in the future, and the use of peroxide vulcanization is the future development trend

Method used

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  • Ethylene-Propylene-Diene Monomer (DPDM) rubber composition
  • Ethylene-Propylene-Diene Monomer (DPDM) rubber composition
  • Ethylene-Propylene-Diene Monomer (DPDM) rubber composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Each component of the EPDM composition is in parts by mass:

[0024]

[0025]

[0026] Note: (1) Antiaging agent RD: 2,2,4-trimethyl-1,2-dihydroquinoline;

[0027] (2) Crosslinking agent BIBP: 1,4-bis(tert-butylperoxyisopropyl)benzene;

[0028] (3) Auxiliary cross-linking agent TAIC: triallyl isocyanate

[0029] According to the raw materials in the formula of the implementation list, the film is made into a film for testing and testing. The performance comparison of the EPDM composition with high temperature resistance and electrochemical corrosion resistance and the sulfur vulcanized EPDM rubber is as follows:

[0030]

[0031] From the data in the above table, it can be concluded that the EPDM rubber composition with high temperature resistance and electrochemical corrosion resistance is not only better in high temperature aging resistance than sulfur vulcanized EPDM rubber, but also has better cooling liquid resistance and The electrical insulation is als...

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Abstract

The invention relates to an Ethylene-Propylene-Diene Monomer (DPDM) rubber composition, comprising Ethylene-Propylene-Diene Monomer (DPDM) rubber, magnesium chloride, polyethylene glycol, antiager RD, quick extrusion carbon soot N550, carbon soot SP5000, tripoli VM56, paraffinum liquidum, cross-linking agent BIBP and assisting cross-linking agent TAIC; the hose of a radiator produced by the Ethylene-Propylene-Diene Monomer (DPDM) rubber composition has the characteristics of high temperature resistance and chemical resistance and long service life, and can better satisfy the current use requirement.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a EPDM rubber composition resistant to high temperature and electrochemical corrosion. Background technique [0002] The automobile radiator hose is a flexible pipeline connecting the automobile engine and the radiator. Its main function is to transport coolant to ensure the safe and normal operation of the engine. [0003] At present, the working temperature of domestic radiator hoses reaches 125°C, and the use of sulfur-vulcanized EPDM rubber can meet the current use requirements. The composition and mass fraction ratio of EPDM rubber currently used in China is: [0004] components parts by mass EPDM 100 Zinc oxide 3～8 polyethylene glycol 2～6 Antiaging agent 1～2 carbon black 70～160 Paraffin oil 30～90 Accelerator 2.0～6.0 sulfur 0.3～1.5 [0005] With the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L71/08C08K13/02C08K3/22C08K3/04C08K3/34C08K5/14F16L11/04
Inventor 张洪起张桂林
Owner TIANJIN PENGYI GRP CO LTD
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