A kind of radiation cross-linking low-smoke and halogen-free flame retardant fuel for automobile wire and its preparation method

Abstract

The invention provides an irradiation cross-linking low-smoke halogen-free fuel for vehicle cables, and a preparation method thereof, wherein the raw materials comprise, by weight, 30-60 parts of a base material resin, 10-25 parts of a compatibilizer, 15-35 parts of a flame retardant, 5-10 parts of a filler, 0.75-1.35 parts of an antioxidant, 2.5-5 parts of a lubricant, and 1.5-2.5 parts of a cross-linking sensitizing agent. According to the present invention, the base material resin is modified by adding the compatibilizer, the flame retardant and other auxiliary agents, such that the prepared irradiation cross-linking low-smoke halogen-free fuel has advantages of low material density, no halogen, environmental protection, flame retardant property and high wear resistance, can resist various oil products and corrosive liquids for vehicles, further has advantages of chemical corrosion resistance, ultra-low-temperature resistance, excellent mechanical property and extremely excellent production extrusion processing performance, and can meet the high-speed production requirements.

Description

technical field [0001] The invention relates to the field of polymer materials for electric wires and cables, and specifically discloses an irradiation cross-linked low-smoke and halogen-free flame retardant for automobile wires and a preparation method thereof. Background technique [0002] In recent years, the current automobile industry in the whole world is still developing rapidly, and my country's domestic automobile industry is also keeping up with the pace and developing at a high speed. At the same time, the performance requirements for various automobile accessories are also getting higher and higher. The raw material of traditional automotive wire insulation is almost all polyvinyl chloride. Although polyvinyl chloride has the advantages of low price and easy processing, it has disadvantages such as low decomposition temperature and poor high temperature resistance, which not only restrict its development, but also limit its use. The rapid development of the indu...

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Problems solved by technology

Although polyvinyl chloride has the advantages of low price and easy processing, it has disadvantages such as low decomposition temperature and poor high temperature resistance, which not only restricts its development, but also limits its use.

The rapid development of the industry will inevitably put forward higher requirements for the performance of automotive wires, high and low temperature resistance requirements, high scratch resistance, oil resistance and corrosion of various automotive liquids, etc. At the same time, environmental protection and halogen-free are also an inevitable development trend; with the new market With the gradual development of energy vehicles, more solutions are being sought to reduce the weight of traditional fuel vehicles; currently, there are automotive wire insulation layers made of radiation cross-linkable halogen-free flame-retardant polyolefin materials on the market. Poor aging resistance, poor scratch resistance, poor processing performance, and slow extrusion speed. At the same time, high material density is not conducive to energy saving requirements, and it is difficult to meet the requirements of automotive thin-walled wires with a temperature resistance of 125°C.

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