Halogen-free flame-retardant thermoplastic elastomer electrical cable material using polyphenylene ether as base material and preparation method thereof

Abstract

The invention discloses a halogen-free flame-retardant thermoplastic elastomer cable material with polyphenylether as the base materials and a preparation method thereof. The raw material of the cable material contains the components with the following weight percentage: 10 to 35 percent of matrix resin A; 5 to 15 percent of matrix resin B; 10 to 25 percent of elastomer; 5 to 25 percent of softening plasticizer; 8 to 15 percent of flame-retardant plasticizer; 20 to 40 percent of smoke-suppression flame retardant; 3 to 10 percent of compatilizer; 1 to 5 percent of lubricant; 1 to 5 percent of powder surface conditioner; 0 to 10 percent of mineral filler; 0.1 to 1 percent of stabilizing agent. The invention adds matrix resin, polyphenylether of strong polarity and functional group of styrene-ethylene / butylene-styrene segmented copolymer, which effectively improves the compatibility of non-polar elastomer with polyphenylether; the invention also adds plasticizer, which reduces the hardness of the material and increases the flexibility; and through the optimization and interaction of the softening plasticizer and the flame-retardant plasticizer, the invention reduces the hardness and improves the tactility of the material, and the flame retardant performance is excellent.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a halogen-free flame-retardant thermoplastic elastomer cable material based on polyphenylene ether and a preparation method thereof. Background technique [0002] With the development of the economy, in order to reduce the fire accidents caused by the heating and burning of cables, the use of flame-retardant cables is becoming more and more common. Traditional flame retardant cables are mainly halogen flame retardant. When a fire occurs, a large amount of smoke will be produced, and toxic, irritating and corrosive hydrogen halide gas will be produced; smoke will hinder fire fighting and personnel evacuation, and hydrogen halide gas will corrode equipment, but also endanger human health, so the production and use of halogen-free flame-retardant safe, environmentally friendly wire and cable materials has become an urgent need. [0003] Polyphenylene ether has excellent mechanical ...

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Problems solved by technology

However, in the four embodiments provided by this patent application, the test results show that the embodiment with the smallest hardness can only reach Shore 85 degrees. If it is used to make daily-used wires such as earphone wires, the hand feel is hard and cannot be used. People feel comfortable, and the flame retardancy and softness are not ideal

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