High-voltage soft polyolefin wire material for new energy automobile and preparation method thereof

Abstract

The invention discloses a soft polyolefin wire material for a high-voltage wire of a new energy automobile. The soft polyolefin wire material is characterized by comprising the following components inparts by weight: 15-25 parts of elastomer rubber; 15-25 parts of elastomer polyethylene; 30-50 parts of an olefin copolymer; 15-25 parts of a toughening agent; 7-12 parts of an inorganic flame retardant; 5-10 parts of an auxiliary agent; 5-10 parts of an antioxidant and 5-10 parts of a cross-linking agent; the polyolefin electric wire material is prepared in an irradiation crosslinking mode, wherein the olefin copolymer is prepared from 1, 1, 1-trifluoro-2-(trifluoromethyl)-4-pent-2-ol, 1, 3-adamantanediol monoacrylate and acrylonitrile through a free radical copolymerization reaction. According to the high-voltage soft polyolefin wire material for the new energy automobile, disclosed by the invention, the flexibility of the two materials is retained; according to the present invention, the olefin cable material can meet the use characteristics of the high-voltage line by adding the special fillers, and the irradiation cross-linking manner is used in the preparation method, such thatthe thermal stability, the aging resistance and the service life of the olefin cable material are improved.

Description

technical field [0001] The invention relates to the technical field of wire materials, in particular to a high-voltage soft polyolefin wire material for new energy vehicles and a preparation method thereof. Background technique [0002] With the deepening of the global energy crisis, the depletion of oil resources and the increasing harm of air pollution and global temperature rise, governments and automobile companies generally recognize that energy saving and emission reduction are the main direction of future automobile technology development. It is in this situation that new energy vehicles emerge as the times require. Wires for new energy vehicles are crucial to the normal operation and service life of new energy vehicles. [0003] Since the kinetic energy system of new energy vehicles is different from that of ordinary fuel vehicles, the differences between the wires used in new energy vehicles and ordinary fuel vehicles are: the high-voltage cables of electric vehicl...

AI Technical Summary

Problems solved by technology

The current wire and cable materials for ordinary fuel vehicles cannot meet the requirements of wire and cable materials for new energy vehicles. At present, elastomeric PVC and elastomeric polyethylene cable materials are mainly used to make new energy vehicle wires and cables on the market, but elastomeric rubber and Elastomer polyethylene materials have the following disadvantages: First, if the two materials achieve good flexibility, but poor mechanical and physical properties, if the mechanical and physical properties are good, their flexibility is average; second, high temperature aging is unstable, affecting service life

[0006] Chinese patent CN106380869A discloses a 125-degree radiation cross-linking elastomeric cable material for high-voltage lines of new energy vehicles and its preparation method. The problem of temperature resistance of TPE materials is solved by radiation cross-linking, but the temperature resistance level is only 125 ° C. For There is no solution for a higher temperature resistance level, and the investment in irradiation equipment is large, and the damage to the material is relatively large during the irradiation crosslinking process, and residual components are easily generated inside the material

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