Charging pile cable material and preparation method thereof

Abstract

The invention relates to a cable, in particular to a charging pile cable material and a preparation method thereof. The flame-retardant EPDM rubber material is prepared from the following materials in parts by weight: 55-70 parts of EPDM rubber, 10-20 parts of ethylene-octene copolymer resin, 8-12 parts of a compatilizer, 6-12 parts of polyethylene-acrylate rubber, 5-10 parts of an ethylene-vinyl acetate copolymer, 2-5 parts of polyphenyl ether, 60-80 parts of a flame retardant, 20-30 parts of a flame-retardant synergist, 15-25 parts of a heat-conducting filler, 0.5-1 part of polyethylene wax, 1.2-2 parts of an antioxidant, 0.9-1.2 parts of a cross-linking agent and 0.1-0.3 part of an anti-degradation agent. The charging pile cable material can simultaneously meet the requirements of softness, high flame retardance, low thermal resistance, high and low temperature resistance, aging resistance, cracking resistance and high insulation.

Description

technical field [0001] The invention relates to a cable, especially a charging pile cable material and a preparation method thereof. Background technique [0002] In recent years, the development of new energy vehicles has become a global trend, and my country's new energy vehicle industry has also entered a stage of rapid development. As one of the important components of new energy vehicles, charging pile cables have put forward high requirements in terms of softness, mechanical physics and electrical performance. For charging pile cable materials, high flame retardancy, high insulation and high flexibility are obviously contradictory. Moreover, because the cable material of the charging pile is in the state of high voltage and high current for a long time during use, on the one hand, the heat generated by the conductor is large, which makes the overall temperature of the cable rise, which limits the improvement of the current carrying capacity of the cable and affects th...

AI Technical Summary

Problems solved by technology

Moreover, because the cable material of the charging pile is in the state of high voltage and high current for a long time during use, on the one hand, the heat generated by the conductor is large, which makes the overall temperature of the cable rise, which limits the improvement of the current carrying capacity of the cable and affects the charging efficiency; on the other hand, it is used for The thermal conductivity of the traditional cable material of the charging pile cable material is very low, and the thermal conductivity is extremely poor, so that the heat cannot be dissipated in time, which is extremely unfavorable to the service life of the cable

[0003] Chinese patent application CN201410390759.5 discloses a modified TPE mixed material for electric vehicle charging pile cable material and its preparation method. The TPE mixed material includes the following components by weight: 50-70 parts of thermoplastic elastomer, reinforcing agent 10-20 parts, 25-55 parts of flame retardant, 0.2-0.5 parts of lubricant, 0.1-0.3 parts of coupling agent, 0.1-0.3 parts of antioxidant, the strength of this material is low due to the large amount of flame retardant added , and poor tear resistance, poor thermal conductivity, poor heat resistance, aging resistance and scratch resistance, which limit its application in electric vehicle charging pile cable materials

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