High temperature resistant oil polyolefin material for motor wire and preparation method thereof

By preparing high-temperature resistant oil-resistant polyolefin materials for motor wires through specific components and processes, the problems of high temperature resistance and flame retardancy of existing materials in high-temperature oil environments have been solved, and the excellent performance of the materials in high-temperature oils has been achieved.

CN120535860BActive Publication Date: 2026-07-24SUZHOU PUMA NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202510910943.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-07-02
Publication Date
2026-07-24
Estimated Expiration
2045-07-02

AI Technical Summary

Technical Problem

Existing polyolefin materials are difficult to meet the requirements for high temperature resistance and flame retardancy in high-temperature oil environments in motor wiring, resulting in a decline in material performance.

Method used

High-temperature resistant oil-resistant polyolefin material for motor wires is prepared by using a specific ratio of ethylene butyl acrylate, maleic anhydride-grafted POE compatibilizer, chemically processed magnesium hydroxide flame retardant and other additives through a specific process, including low-speed stirring, internal mixing, twin-screw extrusion and granulation, to form excellent high-temperature resistance and low-halogen flame retardant properties.

Benefits of technology

It achieves excellent performance in controlling the expansion size and flame retardant properties of materials in high-temperature oil, reduces the oil absorption rate, and improves the mechanical properties and high-temperature resistance of materials.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This invention discloses a high-temperature resistant oil-resistant polyolefin material for motor wiring and its preparation method. It comprises the following components in parts by weight: 15-18 parts ethylene butyl acrylate; 20-25 parts high-density polyethylene; 10-12 parts graft compatibilizer; 40-50 parts flame retardant; 1.5-2.5 parts lubricant; 2.5-3.0 parts antioxidant; 0.5-0.8 parts antioxidant; 0.7-0.9 parts copper inhibitor; and 1-2 parts crosslinking agent. The ethylene butyl acrylate has a butyl acrylate content of 6-20%; the high-density polyethylene has a melt index of 0.1-0.5 g / 10 min; and the graft compatibilizer is maleic anhydride-grafted POE with a POE content ≥95%. By selecting specific ethylene butyl acrylate, high-density polyethylene, and graft compatibilizer and mixing them with other components in a certain proportion, the final polyolefin material exhibits excellent control over its expansion dimensions in high-temperature oil.
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Citation Information

Patent Citations

  • Flame-retardant irradiation cross-linked polyethylene foam material and preparation method thereof

    CN113402803A

  • Flame-retardant aging-resistant polyolefin cable material, preparation method and cable prepared from cable material

    CN119161651A