Halogen-free flame retardant thermoplastic elastomer cable material and preparation method thereof

Abstract

The invention belongs to the technical field of polymer materials and relates to a halogen-free flame retardant thermoplastic elastomer cable material. The halogen-free flame retardant thermoplastic elastomer cable material is characterized by comprising the following raw materials in parts by weight: 20-60 parts of a styrene type elastomer, 20-60 parts of polyphenyl ether resin, 10-40 parts of polyolefin, 10-50 parts of a polyolefin type elastomer, 10-50 parts of a plasticizer, 20-60 parts of a complex phosphorus-nitrogen flame retardant, 1-5 parts of a lubricating agent, 0.1-1 part of an antioxidant and 0.1-1 part of an anti-ultraviolet absorbent. The invention further discloses a preparation method of the cable material. The cable material disclosed by the invention has the characteristics of excellent processing performance, high flame-retardant grade, no toxicity, light density, good anti-tear performance, good acid and alkali resistance, good weather resistance and the like, as well as particularly prominent water resistance and anti-cracking performance. After high-temperature and high-humidity long-term aging, the cable material has no precipitate, the excellent mechanical and physical properties are kept, and the electrical properties do not change obviously.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a cable material and a preparation method thereof, in particular to a halogen-free flame-retardant thermoplastic elastomer cable material and a preparation method thereof. The cable material can be applied to cables for electric vehicle charging piles . Background technique [0002] As one of the important inventions of human industrial civilization, wires and cables have been widely used in the transmission of various types of electric energy and signals. Compared with other materials, halogen-free flame-retardant thermoplastic elastomers are the preferred materials for various wire and cable insulation and sheathing due to their light specific gravity, easy processing and molding, good comprehensive mechanical properties and excellent electrical insulation properties. [0003] PPO, the Chinese name is polyphenylene ether. It is one of the five general-purpose engineer...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to disclose a halogen-free flame-retardant thermoplastic elastomer cable material and its preparation method in view of the above shortcomings of the prior art. The polyphenylene ether is blended and modified by the moisture-resistant compound phosphorus-nitrogen flame retardant, and the compatibility between the components of the matrix resin is good. The process of the invention improves the original poor fluidity of polyphenylene ether, high melt viscosity and the product Stress cracking and other disadvantages are prone to occur. At the same time, the halogen-free flame-retardant thermoplastic elastomer cable material designed and produced by the present invention has excellent processing performance, high halogen-free flame-retardant grade, light density, good tear resistance, and good acid and alkali resistance. And weather resistance, especially water resistance and crack resistance