Soft polyethylene track cable sheath material and preparation method thereof

Abstract

The invention discloses a soft polyethylene track cable sheath material and a preparation method thereof. The soft polyethylene track cable sheath material comprises, by weight, 40-50 parts of low-density polyethylene, 50-60 parts of PVC resin, 20-25 parts of soft modifying agents, 10-12 parts of aluminum silicate, 10-12 parts of stannic oxide, 10-15 parts of light calcium carbonate, 8-10 parts ofxylene, 5-7 parts of diatomite, 5-7 parts of bentonite, 2-4 parts of lubricants, 3-8 parts of thermal stabilizing agents, 3-8 parts of halogen-free flame retardants, 1-3 parts of antioxidants and 1-3parts of plasticizers. The prepared sheath material has the advantages that the sheath material has high flexibility, original brittleness and low bendability of polyethylene cable materials can be improved effectively, flexibility and bendability of the cable materials can be improved, construction is facilitated, the application range of the polyethylene cable materials can be widened effectively, and market share can be increased.

Description

technical field [0001] The invention belongs to the field of track cables, and in particular relates to a soft polyethylene track cable sheathing material and a preparation method thereof. Background technique [0002] As a supporting industry of the power industry, one of the pillar industries of the national economy, the wire and cable industry plays an extremely important role and position in the national economy. Polyethylene cable material is widely used in the field of wire and cable because of its light weight, good mechanical properties, very good low temperature resistance, good environmental stress cracking resistance, good processability, and excellent electrical insulation properties. has a very wide range of applications. Polyethylene cable material is one of the indispensable important components in cable material. [0003] With people's in-depth research on polyethylene cable materials and the increasing requirements for the performance indicators of cable m...

AI Technical Summary

Problems solved by technology

In particular, the relatively high hardness of polyethylene itself makes the cable sheath prepared by it not soft enough. It is difficult to bend and operate when the cable is processed during cable construction, and it is easy to cause damage to the cable sheath and cause unnecessary damage. At the same time, it also increases the burden of cable construction, thus limiting its further expansion and application in the field of wire and cable