Vulcanizing system of ethylene-propylene diene rubber

A technology of EPDM rubber and vulcanization system, which is applied in the direction of conveyor, transportation and packaging, etc. It can solve the problems of poor high temperature resistance, rubber conveyor belt damage, easy decomposition, etc., to improve crosslinking density and high temperature resistance , improve high temperature resistance, improve the effect of physical properties

Inactive Publication Date: 2011-10-12
ZHEJIANG DOUBLE ARROW RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The EPDM rubber obtained by vulcanization in this way has poor high temperature resistance, and it is easy to decompose under the high temperature of the outside world, which will damage the rubber conveyor belt.
At the same time, the crosslinking density of such EPDM rubber is low, resulting in poor physical properties of the rubber conveyor belt.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The EPDM rubber described in this embodiment vulcanizes 100 parts of EPDM rubber, with 15 parts of reactive resin as the main vulcanizing agent, 1 part of peroxide as the auxiliary vulcanizing agent, and 2 parts of Malay Amide as an auxiliary cross-linking agent and anti-reducing agent, and 0.5 parts of plumbous oxide, 1 part of phosphorothioate derivative, 15 parts of silicate, 2 parts of mercaptobenzimidazole and 10 parts of attapulgite were added during the vulcanization process , the above parts are parts by weight.

Embodiment 2

[0015] The EPDM rubber described in this embodiment vulcanizes 100 parts of EPDM rubber, with 30 parts of reactive resin as the main vulcanizing agent, 2 parts of peroxide as the auxiliary vulcanizing agent, and 5 parts of Malay Amide acts as an auxiliary cross-linking agent and anti-reducing agent, and 1 part of lead compound, 3 parts of thiophosphate derivative, 15 parts of carbon black, 2 parts of mercaptobenzimidazole and 2 parts of octylated di Aniline and 30 parts of clay, the above parts are parts by weight.

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PUM

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Abstract

The invention relates to a vulcanizing system of ethylene-propylene diene rubber. Used for vulcanizing 100 parts by weight of the ethylene-propylene diene rubber, the vulcanizing system comprises the following components in parts by weight: 15-30 parts of reactive resin used as a main vulcanizing agent, 1-2 parts of peroxide used as an auxiliary vulcanizing agent and 2-5 parts of maleic amide used as auxiliary crosslinking agent and anti-reducing agent, as well as 0.5-1 part of activator, 1-3 parts of accelerant, 10-15 parts of reinforcing agent, 2-4 parts of anti-aging agent and 10-30 parts of filling agent which are added during vulcanizing process. The vulcanizing system of the ethylene-propylene diene rubber can be used for effectively improving the high-temperature resistance of the rubber by using the reactive resin as the main vulcanizing agent, improving the crosslinking density and physical properties of the rubber by using a small quantity of peroxides as the auxiliary vulcanizing agent, further improving the crosslinking density and high-temperature resistance of the rubber by using the maleic amide as the auxiliary crosslinking agent and anti-reducing agent, and realizing a co-vulcanizing effect by using the activator and the accelerant to result in the concerted reaction of the vulcanizing system.

Description

technical field [0001] The invention relates to the field of rubber conveyor belt production, in particular to an EPDM rubber vulcanization system. Background technique [0002] At present, the vulcanization of EPDM rubber in the industry usually uses sulfur, peroxides, reactive resins, and maleamide compounds as the main curing agent, but generally an independent vulcanization system is used. The obtained EPDM rubber obtained by vulcanization in this way has poor high temperature resistance, and is easily decomposed under the high temperature situation of the outside world, so that the rubber conveyor belt is damaged. At the same time, the crosslinking density of such EPDM rubber is low, resulting in poor physical properties of the rubber conveyor belt. Contents of the invention [0003] The purpose of the present invention is to provide a kind of EPDM rubber vulcanization system that can improve the physical properties and high temperature resistance performance of EPDM...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08K13/02C08K5/14C08K5/3415C08J3/24B65G15/32
Inventor 吴林荣
Owner ZHEJIANG DOUBLE ARROW RUBBER
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