Ultraviolet-resistant and heat-aging-resistant sheath material for automobile dashboard wire harness and preparation method for ultraviolet-resistant and heat-aging-resistant sheath material

Abstract

The invention discloses an ultraviolet-resistant and heat-aging-resistant sheath material for an automobile dashboard wire harness and a preparation method for the ultraviolet-resistant and heat-aging-resistant sheath material. The ultraviolet-resistant and heat-aging-resistant sheath material is prepared from the following raw materials in parts by weight: 64 to 76 parts of eva resin, 13 to 21 parts of octakis(trimethylsiloxy)silsesquioxane, 19 to 26 parts of AES resin, 12 to 20 parts of petroleum coke residues, 14 to 18 parts of dipropylene glycol monosalicylate, 10 to 15 parts of rare earth tailings, 5 to 7 parts of erucyl amide, 7 to 9 parts of nanometer tungsten oxide, 6 to 8 parts of barium molybdate, 5 to 10 parts of waste pyrolysis rubber powder, 2 to 3 parts of iso-amyl p-methoxycinnamate, 7 to 14 parts of cement slag, 10 to 15 parts of diallyl phthalate, 3 to 5 parts of trimethyltin-chloride and 8 to 16 parts of pentaerythritol tetra(2-ethylhexanoate). The prepared sheath material is high in heat aging resistance, and has good and persistent ultraviolet-resistant effects, and requirements on the performance of the sheath material for the automobile dashboard wire harness can be completely met.

Description

technical field [0001] The invention relates to an anti-ultraviolet and heat-resistant aging sheath material for automobile instrument panel wire harnesses and a preparation method thereof, belonging to the field of polymer materials. Background technique [0002] With the rapid development of automotive electronics technology, a large number of wiring harness products are used in automobiles, which play an important role in the safety and reliability of automobiles. Automotive wiring harnesses generally consist of wires, insulating sheath materials, terminal blocks and wrapping materials. Among them, the sheath material is an important part of the automobile wiring harness, which not only plays the role of insulation protection, but also plays the role of flame retardancy, corrosion resistance and waterproof. The quality of the sheath material directly affects the quality and service life of the automotive wiring harness. Among them, the instrument panel wiring harness is...

AI Technical Summary

Problems solved by technology

At present, the automotive instrument panel wire harness sheath materials in the market have the disadvantages of poor UV resistance and poor heat aging resistance, which cannot meet the needs of the market.

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