Vulcanizing system of ethylene-propylene diene rubber

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...

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.