Odorless flame-retardant automobile wire harness with damping structure

Abstract

The invention relates to an odorless flame-retardant automobile wire harness with a damping structure. The automobile wire harness comprises a core body and a pipe body arranged outside the core bodyin a sleeving mode. The core body is manufactured through the following steps: uniformly stirring and mixing 50-60 parts of polyolefin resin, 3-10 parts of nano silicon dioxide, 2-5 parts of a calcium-zinc composite stabilizer, 15-20 parts of low-density polyethylene resin, 2-8 parts of an inorganic flame retardant, and 0.2-0.4 parts of an antioxidant, at a low speed of 150+ / -10 DEG C, then heating to 200+ / -20 DEG C, slowly adding 10-20 parts of an alcohol-free plasticizer, and uniformly stirring to obtain a composition for preparing the core body; wherein a soaking layer, a buffer layer anda heat dissipation layer are sequentially arranged on the pipe body from inside to outside, the soaking layer is made of a heat conduction material, one surface of the soaking layer is tightly attached to the core body, and a concave-convex structure is arranged on the other surface of the soaking layer. The automobile wire harness has good heat dissipation performance and shock absorption performance, the inner core body of the automobile wire harness has the advantages of being tasteless, good in flame-retardant effect, resistant to abrasion and the like, halogen elements are avoided, and the automobile wire harness is environmentally friendly.

Description

technical field [0001] The invention relates to an odorless flame-retardant automobile wire harness with a shock-absorbing structure, belonging to the field of wire and cable materials. Background technique [0002] Compositions based on polyvinyl chloride resin are often used as covered wires in automotive wiring harnesses. Although they have good flame retardancy and wear resistance, polyvinyl chloride resins tend to burn to produce a large amount of halogen gas due to incineration or vehicle accident fires Hazardous substances such as these can cause environmental problems. [0003] And, owing to adding a large amount of low-molecular substances such as plasticizer, stabilizer and lubricant in the composition of existing polyvinyl chloride resin, for example, the residual low-molecular straight chain of conventional plasticizer because of esterification Alcohol and by-product gaseous volatiles such as isomerized aldehydes and alcohols; and the linear alcohols and by-gene...

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Problems solved by technology

[0002] Compositions based on polyvinyl chloride resin are often used as covered wires in automotive wiring harnesses. Although they have good flame retardancy and wear resistance, polyvinyl chloride resins tend to burn to produce a large amount of halogen gas due to incineration or vehicle accident fires Hazardous substances such as

[0003] And, owing to adding a large amount of low-molecular substances such as plasticizer, stabilizer and lubricant in the composition of existing polyvinyl chloride resin, for example, the residual low-molecular straight chain of conventional plasticizer because of esterification Alcohol and by-product gaseous volatiles such as isomerized aldehydes and alcohols; and the linear alcohols and by-generated gaseous volatiles such as isomerized aldehydes and alcohols are difficult to completely remove from plasticizers by means of industrial distillation, so that The processed automotive wiring harness has an unpleasant and harmful smell

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