Novel high-temperature-resistant low-smoke flame-retardant composite cable material and preparation method thereof

Abstract

The invention discloses a novel high-temperature-resistant low-smoke flame-retardant composite cable material. The novel high-temperature-resistant low-smoke flame-retardant composite cable material is prepared from the following raw materials in parts by weight: 90-92 parts of high density polyethylene, 15-17 parts of deca-brominated diphenyl ether, 7-9 parts of antimonous oxide, 2-3 parts of metallocene polyethylene, 2-3 parts of nano magnesium hydroxide, 4-5 parts of cyclohexane, 0.2-0.3 part of gamma-aminopropyl triethoxy silane, 6-8 parts of epoxy resin glue, 10-12 parts of poly 4-methyl-1-pentene, 7-9 parts of silicon carbide, 3-5 parts of clay, 2-3 parts of tribasic lead sulphate, 2-3 parts of Tween 80, 5-6 parts of carbon fibers and a right amount of water. The novel high-temperature-resistant low-smoke flame-retardant composite cable material has the advantages that after a series of processing steps are carried out, the carbon fibers, clay and epoxy resin glue are compatible and then are added into the base material high density polyethylene, so that strength of the product can be improved, and weight is light; the epoxy resin glue is added and compounded with poly 4-methyl-1-pentene, so that temperature class can be improved; and the novel high-temperature-resistant low-smoke flame-retardant composite cable material is resistant to high temperature and breakdown, low-smoke and flame-retardant and can be used for manufacturing an automotive cable and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a novel high-temperature-resistant, low-smoke and flame-retardant composite cable material and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is a general-purpose plastic with a wide range of uses. According to the amount of plasticizer added, it can be made into rigid, semi-rigid and soft products, and can also be modified by blending with other polymers. , made into a wide variety of products with different properties, the amount is very large, it is one of the world's top five general-purpose plastics. The global demand for PVC resin ranks the top three along with polyethylene and polypropylene, while its consumption in China has risen to the first place. Polyvinyl chloride itself is also an intrinsically flame-retardant material, with a high oxygen index and a good flame-retardant effect, but pure PVC is a rigid segment, which ...

AI Technical Summary

Problems solved by technology

Among them, blending technology is the most widely used method to improve the dielectric properties of polyethylene, but the blending of different components will form a microscopic interface of two-phase structure, and even the phenomenon of penetration and separation to the surface of the material will affect other aspects of the blend. Dielectric properties, as blending may result in reduced dielectric strength