A kind of high-voltage flexible polyolefin wire material for new energy vehicles and preparation method thereof

Abstract

The invention discloses a soft polyolefin wire material for high-voltage wires of new energy vehicles, which is characterized in that it comprises the following components in parts by weight: 15-25 parts of elastomer rubber; 15-25 parts of elastomer polyethylene; olefin 30-50 parts of copolymer; 15-25 parts of toughening agent; 7-12 parts of inorganic flame retardant; 5-10 parts of auxiliary agent; 5-10 parts of antioxidant; 5-10 parts of crosslinking agent; The olefin wire material is prepared by irradiation crosslinking; the olefin copolymer is 1,1,1-trifluoro-2-(trifluoromethyl)-4-penta-2-alcohol, 1,3-adamant Alkanediol monoacrylate and acrylonitrile are prepared by free radical copolymerization. The high-voltage flexible polyolefin wire material for new energy vehicles disclosed by the present invention retains the flexibility of these two materials, improves the mechanical properties, and adds some special fillers to make the olefin cable material meet the use characteristics of high-voltage wires. The preparation method above adopts The radiation cross-linking method improves the thermal stability, anti-aging performance and service life of the olefin wire material.

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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