Soft low density halogen free low-smoke flame retardation polyolefin cable material and preparation method thereof

Abstract

The invention relates to a soft low density halogen free low-smoke flame retardation polyolefin cable material and preparation method thereof, and the material comprises the following components: 80-90 parts by weight of ethane-vinyl acetate copolymer, 10-20 parts by weight of linear low density polyethylene, 65-130 parts by weight of inorganic fire retardant after surface treatment, 10-30 parts by weight of synergist, 10-20 parts by weight of high-molecular compatilizer, 0.9-1.5 parts by weight of anti-oxidant, 0.5-4 parts by weight of modified capsaicin, and 1-2 parts by weight of processing auxiliary agent. The invention has the advantages of superior flame retardation performance, excellent toughness and bendability resistance; low-density, low-smoke, low-corrosion, low-toxicity and environment friendly; good processing property and brightened surface of extrudate.

Description

technical field [0001] The invention relates to a cable material, in particular to a soft, low-density, halogen-free, low-smoke, flame-retardant polyolefin cable material and a preparation method thereof. Background technique [0002] With the development of modern industrialization, the increasing demand for electric energy and the increasing dependence on information are the mainstream development trends, and the security of power grids and information networks is also receiving more and more attention. However, cables as transmission carriers of power grids and information networks are vulnerable to various natural factors. How to prevent wires and cables from being damaged has become one of the important research directions in the industry. [0003] Among the various natural factors that destroy wires and cables, rodent infestation is the most important factor. Because the mouse teeth are very sharp, and some teeth are longer than the thickness of the rubber and plasti...

AI Technical Summary

Problems solved by technology

Because the rat's teeth are very sharp, and some teeth are longer than the thickness of the rubber and plastic protective layer of ordinary cables, so it is very difficult to prevent rats from cables

Halogen-free flame-retardant polyolefin cable materials achieve high flame-retardant properties by adding inorganic flame retardants, but adding flame retardants will affect the mechanical properties of the material itself, so it is more vulnerable to damage from mice