125°C-resistant halogen-free flame-retardant thermoplastic elastomer ev cable material and preparation method

Abstract

The invention discloses a halogen-free flame retardant thermoplastic elastomer EV cable material resistant to 125 DEG C and a preparation method thereof. The provided cable material has good oil resistance, and the provided method has the characteristics of convenience for production and low cost. A technical scheme is as below: the halogen-free flame retardant thermoplastic elastomer EV cable material resistant to 125 DEG C comprises polyolefin resin, an elastomer, polyphenyl ether resin and other auxiliary materials. The preparation method of the halogen-free flame retardant thermoplastic elastomer EV cable material resistant to 125 DEG C includes the following steps: 1) preparing raw materials in the following weight portions; 2) pouring the elastomer resin high into a high-speed mixing machine, and pouring filling oil during high speed stirring; 3) adding polyolefin resin, stirring at high speed and discharging; and 4) putting the evenly mixed material into a double-screw extruder, conducting melt kneading, extruding and granulating.

Description

technical field [0001] The invention relates to the field of thermoplastic polymer materials, in particular to a 125°C-resistant halogen-free high flame-retardant thermoplastic elastomer wire and cable material and a preparation method thereof. Background technique [0002] Thermoplastic Elastomer (TPE), referred to as TPE, is known as "the third generation of synthetic rubber" because of its characteristics of both plastic and rubber. With the continuous improvement of human environmental protection awareness, the voice of restricting the use of PVC in foreign countries is increasing day by day, which also promotes the rapid growth of TPE consumption, so the application prospect of TPE is very promising. [0003] Nowadays, electric vehicle technology has become the focus technology for the automotive industry to deal with environmental pollution and alleviate the energy crisis. Various countries and major automakers around the world have invested heavily in the research and...

AI Technical Summary

Problems solved by technology

Halogen-free high flame-retardant thermoplastic elastomers that can be used in a high-temperature environment of 125°C (158°C, 168h aging condition) for a long time and have good oil resistance (gasoline resistance line diameter change rate ≤ 15%) are rarely reported; the reason is that the production of thermoplastic In the process of elastomer, some small molecules added are easy to decompose or volatilize at high temperature, which will cause damage to the structure between polymers, resulting in poor performance under high temperature conditions; in addition, ordinary processed SEBS has strong Oil absorption performance, which ultimately leads to poor gasoline resistance of the material

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