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Cold-resistant rubber tube using both peroxide ternary ethylene-propylene rubber and reclaimed rubber

A technology of EPDM rubber and peroxide, which is applied in the direction of hoses, pipes, pipes/pipe joints/pipe fittings, etc., can solve the problems of high cold resistance and low compression deformation, and reduce dynamic heat generation performance , low compression deformation, high filling effect

Active Publication Date: 2012-09-05
TIANJIN PENGYI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, the traditional rubber hose based on sulfur vulcanization system and peroxide EPDM rubber has been difficult to meet the current high cold resistance, low compression deformation, coolant resistance, ozone resistance, acid and alkali resistance, water vapor resistance, and color stability. and fluidity requirements at room temperature

Method used

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  • Cold-resistant rubber tube using both peroxide ternary ethylene-propylene rubber and reclaimed rubber
  • Cold-resistant rubber tube using both peroxide ternary ethylene-propylene rubber and reclaimed rubber
  • Cold-resistant rubber tube using both peroxide ternary ethylene-propylene rubber and reclaimed rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The embodiment of the cold-resistant rubber hose used in combination with peroxide EPDM rubber and reclaimed rubber:

[0020] In parts by mass

[0021]

[0022] According to the raw materials in the formula in the implementation list, the film was made into a film for testing and testing. The performance comparison of the cold-resistant rubber hose formula using peroxide EPDM rubber and reclaimed rubber with the sulfur vulcanization system and peroxide system without reclaimed rubber hose is as follows:

[0023]

[0024]

[0025] From the data in the above table, it can be concluded that the cold-resistant rubber hose formula using peroxide EPDM rubber and reclaimed rubber is not only cold-resistant, but also resistant to cooling fluid and Electrical properties, ozone resistance and heat aging resistance are better, and the compression set is lower, the elongation, tear strength and tear strength are also better, which can better meet the cooling system circula...

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Abstract

The invention relates to a cold-resistant rubber tube using both peroxide ternary ethylene-propylene rubber and a reclaimed rubber. The cold-resistant rubber tube comprises the following components: ternary ethylene-propylene rubber, ternary ethylene-propylene reclaimed rubber, zinc oxide, polyethylene glycol, stearic acid, an age resister SP-C, an age resister D, fast extruding carbon black N550, thermal cracking carbon black N990, china clay processed by a vinyl silane coupling agent, a plasticizer DOS, a coupling agent KBM-903, a cross-linking agent DCP and an auxiliary cross-linking agentVP-4. Compared with a sulfur vulcanizing system and a peroxide system which do not contain a reclaimed rubber tube, the formula of the cold-resistant rubber tube using both the peroxide ternary ethylene-propylene rubber and the reclaimed rubber has higher cold resistance, cooled liquid resistance, electric property resistance, ozone resistance and thermal ageing resistance, lower compression set,higher elongation, breaking strength and tearing strength and can better meet the requirements of a cooling system circulating water pipe and a connecting hose pipe which are used for a long time at a low temperature.

Description

technical field [0001] The invention relates to a rubber hose, in particular to a cold-resistant rubber hose in which peroxide EPDM rubber and reclaimed rubber are used together. Background technique [0002] China is a country that is relatively short of raw rubber resources. Most of the raw rubber consumed in China needs to be imported every year. However, the price of raw rubber has been rising continuously in recent years, which has brought a great impact on the development of domestic rubber products enterprises. Reclaimed rubber has always been an important raw material for the world's rubber industry. On the one hand, it can replace rubber to reduce costs, alleviate the serious shortage and high cost of synthetic rubber and natural rubber; The problem of rubber polluting the environment. [0003] In northern China, the climate is very cold in winter, and common automotive cooling system rubber hoses and connecting pipes will lose elasticity and crack when used in a l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08K13/06C08K9/06C08K3/34C08K3/22C08K5/09C08K3/04F16L11/04
Inventor 张洪起李智
Owner TIANJIN PENGYI GRP CO LTD
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