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Peroxide vulcanization ethylene-propylene diene monomer (EPDM) composite for rubber tube of radiator

A peroxide and vulcanization ternary technology, applied in the direction of hoses, pipes, pipes/pipe joints/pipe fittings, etc., can solve the harsh problems that cannot meet the requirements of the use of automobile radiator hoses, and achieve long service life and excellent durability. Heat and coolant resistance, effect of increasing crosslink density

Inactive Publication Date: 2012-04-11
TIANJIN PENGYI GRP CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

As one of the important parts of the automobile engine cooling system, the radiator rubber hose has higher and higher requirements, and the rubber hose must withstand the test of high temperature (above 150°C) around the engine. The sulfur vulcanized three Yuan ethylene propylene rubber radiator hose can no longer meet the current requirements for the use of automotive radiator hose

Method used

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  • Peroxide vulcanization ethylene-propylene diene monomer (EPDM) composite for rubber tube of radiator
  • Peroxide vulcanization ethylene-propylene diene monomer (EPDM) composite for rubber tube of radiator
  • Peroxide vulcanization ethylene-propylene diene monomer (EPDM) composite for rubber tube of radiator

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Experimental program
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Embodiment approach

[0018] In parts by mass

[0019]

[0020]

[0021] The raw materials in the formulations listed in the implementation are made into films for testing and testing, the peroxide curing system and the existing sulfur curing system

[0022] The performance comparison is as follows:

[0023]

[0024] From the data in the above table, it can be concluded that, compared with sulfur vulcanized radiator hose, peroxide vulcanized radiator hose not only has better resistance to high temperature and aging, but also has excellent coolant resistance, electrical insulation and pressure change performance. It can better meet the requirements of current automotive radiator water pipes.

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Abstract

The invention relates to a peroxide vulcanization ethylene-propylene diene monomer (EPDM) composite for a rubber tube of a radiator, wherein the raw materials are as follows: 100 parts of EPDM, 3-7 parts of magnesium oxide, 2-5 parts of polyethylene glycol, 0.5-2.0 parts of antiager 445, 0.5-2.0 parts of antiager RD, 30-80 parts of quickly extruded carbon black N550, 25-55 parts of carbon black SP5000, 10-30 parts of non-polluting medium particle thermal cracked carbon black N990, 35-55 parts of paraffin oil, 2.5-4 parts of cross-linking agent BIBP and 0.5-2.5 parts of assistant cross-linker TAC. The radiator hose produced from the peroxide vulcanization ethylene-propylene diene monomer (EPDM) composite of the invention has characteristics of high temperature resistance, cooling liquid resistance, electrochemical corrosion resistance and long service life so as to better satisfy the current use requirements.

Description

Technical field [0001] The invention relates to the technical field of rubber, in particular to a peroxide-vulcanized EPDM rubber composition for radiator hoses. Background technique [0002] The automobile radiator hose is a flexible connection between the automobile engine and the radiator. The main function is to transport the coolant to ensure the safe and normal operation of the engine. [0003] The current domestic radiator hose has a temperature of 125°C, and the use of sulfur-vulcanized EPDM rubber can meet current requirements. The ratio of components and mass fractions of EPDM rubber compositions currently used in China is: [0004] Component Mass parts EPDM rubber 100 Zinc oxide 2~10 Polyethylene glycol 1~6 Anti-aging agent 0.5~2.5 Carbon black 70~200 Paraffin oil 30~110 Accelerator 2.0~6.0 Sulfur 0.3~2.0 [0005] With the rapid development of the automobile industry, automobiles are developing in the direction of lightness, efficiency and...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08K13/02C08K3/22C08K3/04C08K5/14F16L11/04
Inventor 张洪起张桂林
Owner TIANJIN PENGYI GRP CO LTD
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