Low smoke zero halogen flame retardant crosslinking polyolefin jacket material and preparation method thereof

Abstract

The invention provides a low smoke zero halogen flame retardant crosslinking polyolefin jacket material. The low smoke zero halogen flame retardant crosslinking polyolefin jacket material comprises the following components in parts by weight: 55-65 parts of ethylene-vinyl acetate polymer, 35-50 parts of polyethylene, 5-8 parts of carbon black, 6-8 parts of melamine polyphosphates, 55-65 parts of modified aluminum hydroxide, 0.1-0.2 part of dicumyl peroxide, 1.5-2.0 parts of a silane coupling agent, 1-2 parts of barium stearate, 1-2 parts of polyethylene wax, 2-3 parts of talcum powder, 0.5-0.6part of a light stabilizer and 2-5 parts of an antioxidant, wherein the modified aluminum hydroxide is titanate modified aluminum hydroxide. The low smoke zero halogen flame retardant crosslinking polyolefin jacket material makes the thermal oxidation resistance and flame retardant capability of the material be greatly improved, and meanwhile has the good mechanical performance. The invention further provides a preparation method of the low smoke zero halogen flame retardant crosslinking polyolefin jacket material, and the preparation method is reasonable in design, easy and convenient to operate, high in raw material utilization rate and can easily achieve industrialized production.

Description

technical field [0001] The invention belongs to the technical field of cable materials, and in particular relates to a low-smoke, halogen-free, flame-retardant cross-linked polyolefin sheath material and a preparation method thereof. Background technique [0002] With the continuous expansion of the application occasions of wires and cables and people's continuous pursuit of electricity safety, the improvement of the high temperature resistance of wires and cables, especially the increase of long-term use temperature, has become more and more important. The high temperature resistance of wires and cables is mainly composed of Its sheath and insulating material are determined, so the application of cross-linked materials in wire and cable is increasing. As we all know, cross-linked polyolefin is a common cable material, and its excellent properties in high and low temperature resistance, creep resistance, and aging resistance are reflected in wire and cable, but the existing ...

AI Technical Summary

Problems solved by technology

[0003] In view of the above technical problems, the purpose of the present invention is to provide a low-smoke, halogen-free, flame-retardant cross-linked polyolefin sheathing material to solve the problems of easy deformation at high temperature and poor flame retardancy; the present invention also provides the low-smoke, halogen-free Preparation method of flame-retardant cross-linked polyolefin sheath material