Cold and thermal resisting PVC cable sheath

Abstract

The invention relates to a cold and thermal resisting PVC cable sheath which is prepared from the following components: 65 parts of polyvinyl chloride, 2 parts of tartaric acid, 2 parts of antioxidant, 2 parts of a plasticizer, 2 parts of tributyl phosphate, 2 parts of polytetrafluoroethylene, 1 part of a stabilizing agent, 1 part of neopentyl glycol diacrylate, 4 parts of disproportionated abietic acid soap, 4 parts of a silane crosslinking agent and 1 part of phthalic acid dioctyl sebacate as well as 3 parts of nano silicon dioxide. The polymer, that is, the cold and thermal resisting PVC cable sheath, is high in average use temperature and has the characteristic of very high stress cracking resistance, a pipeline prepared from the polymer is relatively safe to use, high in pressure resistance, low in production cost and relatively high in loading capacity, and the cost is remarkably lowered.

Description

technical field [0001] The invention relates to a chemical product, in particular to a PVC cable sheath resistant to cold and heat. Background technique [0002] At present, high-density polyvinyl chloride pipes are widely used in building water supply, drainage, Building heating, electricity, telecommunications protection, industry, agriculture and other fields. However, because its own material does not have heat resistance, it will cause pressure reduction when transporting medium with high temperature, which limits the application of its pipe in the field of medium and high temperature medium transportation. At present, the known patented technology and practical technology only partially solve the problem of its heat resistance, and none of them can solve the problem of both heat resistance and pressure resistance. The cost of the pipe is very high, and the waste of resources is serious. big. Contents of the invention [0003] The technical problem to be solved by ...

AI Technical Summary

Problems solved by technology

However, because its own material does not have heat resistance, it will cause pressure reduction when transporting medium with high temperature, which limits the application of its pipe in the field of medium and high temperature medium transportation.

At present, the known patented technology and practical technology only partially solve the problem of its heat resistance, and none of them can solve the problem of both heat resistance and pressure resistance. The cost of the pipe is very high, and the waste of resources is serious. Big