Modified PVC electric cable material with characteristics of corrosion resistance and thermal insulation, and preparation method thereof

Abstract

The present invention relates to an electric cable material, particularly to a modified PVC electric cable material with characteristics of corrosion resistance and thermal insulation, and a preparation method thereof. The electric cable material is prepared from the following raw materials by weight: 50-60 parts of a PVC resin, 18-25 parts of a maleic anhydride-grafted ethylene-vinyl acetate copolymer, 20-28 parts of aluminum hydroxide, 16-22 parts of flue deposit, 4-6 parts of polyacrylamide, 6-9 parts of foam glass powder, 1-3 parts of 2-mercaptobenzimidazole, 10-12 parts of triethyl citrate, 1-2 parts of an accelerator DM, 1-2 parts of di-tert-butyl-p-cresol, 8-10 parts of a color concentrate, and 2-3 parts of an auxiliary agent. According to the present invention, the electric cable material adopts the PVC resin as the base material and is matched with the maleic anhydride-grafted ethylene-vinyl acetate copolymer, the flue deposit being subjected to the surface treatment through the polyacrylamide in the raw materials has characteristics of good dispersion property and uniform and stable reinforcing effect, and other remaining materials are combined, such that the electric cable material of the present invention has the excellent mechanical property, and further has advantages of significantly-improved heat resistance, strong corrosion resistance, uniform and stable performance, high raw material utilization rate, economy, and environment protection compared with the traditional PVC resin electric cable materials.

Description

technical field [0001] The invention relates to a cable material, in particular to a corrosion-resistant and heat-insulating modified PVC cable material and a preparation method thereof. Background technique [0002] Cable material is a general term for plastics used for wire and cable insulation and sheathing. It is made of rubber, plastic, nylon and other materials as base materials, combined with auxiliary components such as plasticizers, fillers, color masterbatches, and antioxidants. Different types of cables and The use environment has different requirements on the performance of cable materials. Most of the commercially available cable materials are not resistant to scratches and folds, are easy to corrode and oxidize the internal metal wires, have poor flame retardancy, cannot balance hardness and toughness, and are highly toxic when burned. Defects such as resistance to humidity, cold and heat restrict the safety and service life of cables. Therefore, it is urgent t...

AI Technical Summary

Problems solved by technology

[0002] Cable material is a general term for plastics used for wire and cable insulation and sheathing. It is made of rubber, plastic, nylon and other materials as base materials, combined with auxiliary components such as plasticizers, fillers, color masterbatches, and antioxidants. Different types of cables and The use environment has different requirements on the performance of cable materials. Most of the commercially available cable materials are not resistant to scratches and folds, are easy to corrode and oxidize the internal metal wires, have poor flame retardancy, cannot balance hardness and toughness, and are highly toxic when burned. Defects such as resistance to humidity, cold and heat restrict the safety and service life of cables. Therefore, it is urgent to develop new types of cable materials with balanced performance, environmental protection, safety, and strong practicability.