Preparation technique of high temperature resistant, anti-corona high-resistance ethylene propylene terpolymer

Abstract

The invention provides a preparation method of high temperature resistant, anti-corona high-resistance ethylene propylene terpolymer, comprising the formula and preparation method. The formula reinforcement, mixing preparation method conquers the defects of the prior technique that the temperature resistance of the ethylene propylene terpolymer is lower. The invention provides a preparation method of high temperature resistant, anti-corona high-resistance ethylene propylene terpolymer. The 150 DEG C resistant, anti-corona high-resistance ethylene propylene terpolymer materials are prepared, which can satisfy the special requirement of the automobile industry for the heat resistance and electrical strength of the rubber goods, thus the heat resistance, electrical strength of the ethylene propylene terpolymer rubber products.

Description

technical field [0001] The invention relates to the preparation technology of rubber modified materials, in particular to a preparation method of a high-temperature-resistant, corona-proof and high-resistance EPDM rubber used for making automobile rubber hoses. Background technique [0002] EPDM rubber is a terpolymer of ethylene, propylene and non-conjugated dienes. Through blending, copolymerization, filling, grafting, reinforcement and molecular compound modification, various comprehensive properties can be obtained, suitable for different purposes. Inexpensive modified rubber material. [0003] The rubber hose of the automobile cooling system requires a temperature resistance of above 140°C. In high-altitude and low-pressure areas, the high-voltage ignition system of the automobile is prone to corona phenomenon, so the electrical insulation sheath of the high-voltage wire of the ignition system is required to have anti-corona high resistance Performance, the temperature...

AI Technical Summary

Problems solved by technology

[0003] The rubber hose of the automobile cooling system requires a temperature resistance of above 140°C. In high-altitude and low-pressure areas, the high-voltage ignition system of the automobile is prone to corona phenomenon, so the electrical insulation sheath of the high-voltage wire of the ignition system is required to have anti-corona high resistance Performance, the temperature-resistant EPDM material used for the heat-resistant rubber hose in the prior art is 135°C, and there are problems and deficiencies in the low temperature-resistant performance in rubber products such as rubber hoses for automobile cooling systems and high-voltage electrical insulation sheaths.