Halogen-free thermoplastic elastomer and manufacturing method thereof and environment-friendly electric wires and cables using halogen-free thermoplastic elastomer

Abstract

The invention discloses a halogen-free thermoplastic elastomer composition, which is characterized by consisting of the following components in percentage by mass: 30 to 40 percent of elastomer, 15 to 30 percent of thermoplastic, 2 to 8 percent of EVA (ethylene-vinyl acetate) resin, 3 to 6 percent of compatilizer, 10 to 25 percent of plasticizer, 2 to 8 percent of inorganic filler and 5 to 10 percent of auxiliary agent. In the halogen-free thermoplastic elastomer composition and a manufacturing method thereof and environment-friendly electric wires and cables using the same, the composition does not contain harmful heavy metals, halogen and chemical substances harming human health and natural environment; and the environment-friendly new material is non-toxic and pollution-free, can be recycled, has the advantage of resisting water, cold, high temperature, oil, acid and alkali, and is widely applied in high-end cables of military industry, ships, nuclear power, wind energy, railway track traffic, magnetic suspension and the like and related fields.

Description

technical field [0001] The invention relates to a halogen-free thermoplastic elastomer with high elasticity, high strength, superior processing performance, soft touch, and recyclable use, in particular, a halogen-free thermoplastic elastomer and its manufacturing method, and its use Its environmentally friendly wire and cable. Background technique [0002] The cable structure mainly includes insulation layer, sheath layer, tape, filling, braiding, metal armor and conductor. The cable material (insulation and sheath material) is usually made of PVC resin and halogen-containing rubber (such as neoprene, chlorine Sulfonated rubber, chlorinated polyethylene rubber, etc.) and various plasticizers, stabilizers, lubricants, and flame retardants. In the event of a fire, such cables will release a large amount of harmful gases such as hydrogen chloride, and at the same time produce a large amount of Toxic smoke brings great difficulty to the safe escape of people at the fire scene,...

AI Technical Summary

Problems solved by technology

In order to achieve a good flame retardant effect, some cables will add a lot of halogen-containing flame retardants (such as hexabromocyclododecane, decabromodiphenyl ether, tetrabromobisphenol A, etc.), which will generate a large amount of flame retardants during combustion. Black smoke will release harmful gases and substances such as hydrogen halide and dioxin at the same time, polluting the surrounding environment and causing harm to the human body; in addition, some additives used in these materials mostly contain lead, cadmium, mercury, and hexavalent chromium , polybrominated biphenyls, polybrominated diphenyl ethers and other harmful substances, which are substances banned in cable materials by developed countries such as EU countries, Japan, and the United States

Images