Cold and high temperature resistant PVC cable material

Abstract

A cold and high temperature resistant PVC cable material is prepared from, by weight, 52-65 parts of polyvinyl chloride, 12-18 parts of high-density polypropylene, 3-6 parts of potassium sulphate, 3-6 parts of trioctyl trimellitate, 3-6 parts of calcium stearate, 7.5-13.5 parts of wheat germ oil, 7.5-13.5 parts of castor oil, 21-27.5 parts of calcium carbonate, 2-3 parts of bisphenol A, 10-22 parts of calcium hydroxide, 10-22 parts of potassium acid phthalate, 4-8 parts of p-phenylenediamine and 15-22 parts of modified filler. PVC serves as the main material of the cable material and is matched with other auxiliary materials and filler to make the cable material high in stability, the expansion rate of the cable material is almost zero at high temperature and low temperature, the insulating property of the cable material does not change at all at high temperature and low temperature, the thermo capacity of the cable material is high, melting flow does not occur even at a temperature as high as 150 DEG C, electrical safety can be well guaranteed, and the cable material does not become stiff and embrittled and is high in tenacity even at a temperature as low as -48 DEG C.

Description

technical field [0001] The invention relates to the technical field of cable materials, in particular to a cold-resistant and high-temperature-resistant PVC cable material. Background technique [0002] PVC cable material is based on polyvinyl chloride, adding stabilizers, dioctyl phthalate, diisodecyl phthalate, dioctyl terephthalate, trioctyl trimellitate, etc. Plasticizers and inorganic fillers such as calcium carbonate, additives such as additives and lubricants, particles prepared by mixing, kneading and extruding. [0003] Due to the use of stabilizers, plasticizers and various fillers and other additives in terms of environmental protection vary. Generally, it is measured by the testing methods and standards of ROHS or REACH. Divided into environmental protection and non-environmental protection PVC cable materials. Environmentally friendly cable materials, that is to say, after the cable materials are successfully prepared, they are tested on ICP testing equipment...

AI Technical Summary

Problems solved by technology

Non-environmentally friendly cable materials Non-environmentally friendly cable materials generally use lead salts as stabilizers, because they contain heavy metals such as lead, chromium, cadmium, mercury, barium, etc., which will cause great damage to the environment and human health, and are receiving more and more attention. countries that restrict or prohibit the use of

[0004] Wire and cable are indispensable and important materials in industrial and agricultural production and modern life. my country is the world's largest producer of wire and cable. The wire and cable industry occupies a very important position in my country's national economy. However, the cables currently on the market The material either has a certain high temperature resistance or a certain cold resistance. Few cable materials can adapt to both high temperature and cold environments.

Images