Preparation method of sheath material of ethylene-propylene rubber insulated polychloroprene sheathed cable

Abstract

The invention discloses a preparation method of a sheath material of an ethylene-propylene rubber insulated polychloroprene sheathed cable, comprising the following steps: mixing ethylene-propylene rubber, polychloroprene, hydrogenated nitrile-butadiene rubber, fluorine rubber and styrene-butadiene rubber for 1-2min; adding modified quicklime, coumarone resin, calcined pottery clay, nano titanium dioxide, bentonite, hollow microspheres, zirconia, RF-90 resin, microcrystalline cellulose, thiuram disulfide and hexamethylenetetramine, mixing uniformly and discharging the material, wherein the mixing temperature is 105-110DEG C; adding an anti-aging agent RD, an anti-aging agent H, an anti-aging agent 4010NA, process oil, pine tar oil and dibutyl phthalate and uniformly mixing, adding benzoyl peroxide and aluminum hydroxide, curing at the curing temperature of 158-163DEG C for 1-2min, and discharging and cooling the material to obtain the sheath material of the ethylene-propylene rubber insulated polychloroprene sheathed cable.

Description

technical field [0001] The invention relates to the technical field of cable sheaths, in particular to a preparation method of a cable sheath material with ethylene-propylene rubber insulation and neoprene sheath. Background technique [0002] In recent years, with the rapid development of China's economy, the contradiction of tight energy supply has become more and more prominent. In order to meet this demand, major coal mines have adopted high-power coal mining equipment to increase production capacity, and the supporting cables for power transmission Ethylene-propylene rubber insulation has high operational reliability and other advantages. For example, the electrical and mechanical properties hardly decrease after being immersed in water, and the electrical resistance and heat resistance are good. The amount of ethylene-propylene rubber in cable production is also increasing. increase, the existing ethylene propylene rubber materials are more and more unable to meet the ...

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the rapid development of China's economy, the contradiction of tight energy supply has become more and more prominent. In order to meet this demand, major coal mines have adopted high-power coal mining equipment to increase production capacity, and the supporting cables for power transmission Ethylene-propylene rubber insulation has high operational reliability and other advantages. For example, the electrical and mechanical properties hardly decrease after being immersed in water, and the electrical resistance and heat resistance are good. The amount of ethylene-propylene rubber in cable production is also increasing. increase, the existing ethylene propylene rubber materials are more and more unable to meet the social needs of rapid development, how to prepare a kind of waterproof, aging resistance, good mechanical properties, low production cost, good economic benefits of mining EPDM cable protection Set of materials has become a technical problem that needs to be solved at present