Halogen-free low-smoke flame-retardant polypropylene/polyamide composite material and preparation method

Abstract

The invention relates to a halogen-free low-smoke flame-retardant polypropylene / polyamide composite material, which is prepared by the following raw materials in parts by weight: 100 parts of polypropylene, 30-50 parts of polyamide, 20-50 parts of thermoplastic elastomer, 30-50 parts of halogen-free low-smoke flame-retardant agent, 10-20 parts of high molecular compatilizer, 1-5 parts of dispersing agent and 1-5 parts of antioxidant. After the raw materials are weighed according to the weight parts, the raw materials are evenly mixed and are fused and extruded through a double-screw extruder and are granulated. The method has the advantages that the process is simple, the cost is low, the weight of the obtained composite material is light, no halogen is contained and the smoke is low, the flame-retardant performance is good, the aging resistance is high and the surface is bright and smooth.

Description

technical field The invention belongs to the technical field of polymer materials, and more specifically relates to a halogen-free low-smoke flame-retardant polypropylene / polyamide composite material and a preparation method thereof. Background technique Plastic has many advantages such as easy processing, light weight, and corrosion resistance. It has been used in many fields instead of wood, stone, and steel, which greatly facilitates people's daily life. With the emergence and development of polymer materials, fire accidents are also increasing, and the flame-retardant technology of polymer materials has emerged as the times require. Polymer flame-retardant materials are mostly used for insulation and sheathing of wires and cables. Due to the lessons of cable fires, in the late 1980s, flame-retardant cables have become an inevitable trend in the development of cables, thus actively promoting the flame-retardant of polyvinyl chloride (PVC) materials and the development o...

AI Technical Summary

Problems solved by technology

However, due to the release of toxic and corrosive hydrogen chloride gas during the burning process of PVC wire and cable materials, it seriously endangers people's health

GE has since launched a wire and cable material that uses flexible Noryl resin to replace PVC. However, the material is expensive. Therefore, it is particularly important to develop a new type of low-cost, halogen-free, low-smoke, flame-retardant wire and cable composite material.

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