Heat-resistant fire-retardant anti-freeze thermoplastic elastomer material

Abstract

The invention discloses a heat-resistant fire-retardant anti-freeze thermoplastic elastomer material. The heat-resistant fire-retardant anti-freeze thermoplastic elastomer material is prepared from the following raw materials: SEBS, PP, HDPE, LDPE, naphthenic oil, maleic anhydride, terpene resin, a lubricant, silicone master batch, ethylene propylene rubber, coumarone, chlorinated polyether, organic modified bentonite, organic silicon resin, other auxiliaries, hydrated alumina, an auxiliary fire retardant, an antistatic agent and turpentine. A wear-resistant heat-resistant fire-retardant anti-freeze thermoplastic elastomer presents good heat resistance performance, and has excellent low temperature resistance performance at the same time, a low temperature brittle temperature of the wear-resistant heat-resistant fire-retardant anti-freeze thermoplastic elastomer can reach -65 DEG C, and the defect that existing elastic materials are brittle at low temperatures and easy to soften at high temperatures is overcome; an obtained shaped product is in elasticity and plasticity balance, and has a good fire retardant effect, and the thermoplastic elastomer is light in weight, excellent in weather resistance performance, and is environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a heat-resistant, flame-retardant, and frost-resistant thermoplastic elastomer material. Background technique [0002] Thermoplastic elastomeric materials are often used as insulating jackets for communication cables. However, when a fire occurs, the cable often loses its transmission capacity. At the same time, these materials also become the way for the flame to spread, further expanding the damage caused by the fire. Many countries are committed to the research of flame retardant cable materials. In order to prevent serious consequences caused by cable burning in case of fire. Domestic research mainly focuses on thermoplastic polyolefin elastomers. In recent years, the application of styrene thermoplastic elastomers has appeared. The research and development of thermoplastic flame-retardant polyolefin cable materials is becoming more and more obvious...

AI Technical Summary

Problems solved by technology

[0003] At present, the sheath materials of wire and cable mainly include PVC, SEBS thermoplastic elastomer, thermosetting rubber or various natural or synthetic elastomers, etc. The processing technology of PVC is simple, the efficiency is high, and the processing performance is better. The Vicat softening point of PVC The temperature is 80°C, and the low-temperature embrittlement temperature is only -10°C. The high-temperature resistance and low-temperature resistance are not ideal. In terms of surface properties, PVC is a polar material, and ester plasticizers are easy to migrate and dissolve in water. There are hydrogen bonds, it cannot be strongly hydrophobic, and the surface performance is poor; PVC is also prone to aging and hardening due to various environmental factors, resulting in a decrease in the electrical performance and environmental resistance of the cable

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