Thermoplastic chlorinated polyethylene cable material and preparation method thereof

Abstract

The invention discloses a thermoplastic chlorinated polyethylene cable material. The thermoplastic chlorinated polyethylene cable material comprises the following components according to weight ratio: 100 parts of chlorinated polyethylene, 50-200 parts of reinforced modifier, 10-60 parts of plasticizer, 50-300 parts of filler, 2-4 parts of dynamic cross-linking agent, 10-15 parts of sulfurized acid-acceptor, 0-5 parts of pigment and 8-12 parts of auxiliary agent. The preparation method comprises the following steps of: A, adding the chlorinated polyethylene, the plasticizer, the filler, the sulfurized acid-acceptor, the pigment and the auxiliary agent into an electro thermal internal mixer, mixing for 15 min at 145-180 DEG C to uniformly mix the materials, then adding the dynamic cross-linking agent to react for 5-10 min, discharging, cooling and pulverizing and cutting into particles to obtain the dynamic cross-linking chlorinated polyethylene; and B, adding the dynamic cross-linking chlorinated polyethylene obtained in the above step and the strengthened modifier into a stirring mixer, uniformly mixing, extruding and pelletizing at 175-195 DEG C by using a single-screw extrusion pelletizer and cooling to obtain a finished product. The product has excellent low temperature tolerance performance, does not contain toxic substance and is green and environmentally-friendly; and the apparatus of the preparation method has simple process and low cost without any three-waste emission and environmental pollution in the whole preparation process.

Description

technical field [0001] The invention relates to a cable material for manufacturing cable insulation sheaths, in particular to a low-temperature-resistant thermoplastic chlorinated polyethylene cable material; the invention also relates to a production method of the cable material. Background technique [0002] At present, the insulation and sheath materials of general-purpose rubber-sheathed cables are natural rubber, styrene-butadiene rubber, and EPDM rubber, and mine-used cables are neoprene and chlorinated polyethylene rubber (135B). Produced by vulcanization. There are some poisonous substances in the vulcanization aids used, and the reaction by-products are mostly poisonous substances; the heat source of the vulcanization process requires high-temperature and high-pressure steam, and most of them are supplied by 4-10-ton boilers, and each boiler steam supplies 3-5 The pipeline vulcanization line usually consumes about 500 tons of standard coal per year per plant, resul...

AI Technical Summary

Problems solved by technology

There are some poisonous substances in the vulcanization aids used, and the reaction by-products are mostly poisonous substances; the heat source of the vulcanization process requires high-temperature and high-pressure steam, and most of them are supplied by 4-10-ton boilers, and each boiler steam supplies 3-5 Pipe vulcanization line, usually each plant consumes about 500 tons of standard coal per year, resulting in huge energy waste, "three wastes" discharge and serious environmental pollution

There are serious hidden dangers in high temperature and high pressure operation; what's more, the equipment is complicated, the investment is expensive, the production consumption is large, the scrap rate is high and the scrap can not be recycled, resulting in a great waste of raw materials and increased production costs

It is certain that the current technology belongs to the "three high" technology products of "high energy consumption, high emission, and high pollution", which is completely inconsistent with the current national compulsory promotion of products, industrial policies and long-term cable development plans.