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Odorless flame-retardant automobile wire harness with damping structure

An automotive wiring harness and core technology, which is applied in the direction of conductor/cable insulation, cables, insulated conductors, etc., can solve problems such as harmful odor, environmental problems, and unpleasant smell of automotive wiring harnesses, and achieve the effect of environmental friendliness and good flame retardant effect.

Pending Publication Date: 2020-04-17
昆山浩正辰电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Odorless flame-retardant automobile wire harness with damping structure
  • Odorless flame-retardant automobile wire harness with damping structure
  • Odorless flame-retardant automobile wire harness with damping structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The core body of the odorless flame-retardant automobile wiring harness with a shock-absorbing structure in this embodiment is mainly composed of polypropylene resin (polymerization degree: 1600), and adipic acid plasticizer, carbon dioxide-based polymer, nano-silica, Calcium-zinc composite stabilizer, low-density polyethylene resin, stepless flame retardant and antioxidant, respectively by weight:

[0026]

[0027] Nano-silica is active fumed nano-silica with a density of 0.1-0.2g / cm 3 .

[0028] In this embodiment, the preparation process of the core body of the odorless flame-retardant automobile wiring harness with a shock-absorbing structure is as follows: 50 parts of polypropylene resin-1600, 3 parts of nano-silicon dioxide, 4 parts of calcium-zinc composite stabilizer, 17 parts Low-density polyethylene resin, 3 parts of inorganic flame retardant and 0.2 parts of antioxidant are mixed at 150±10°C with low-speed stirring, then the temperature is raised to 180°C...

Embodiment 2

[0031] The odorless and flame-retardant automobile wiring harness with shock-absorbing structure in this embodiment is mainly composed of polypropylene resin (polymerization degree: 1600), and adipic acid plasticizer, carbon dioxide-based polymer, nano-silica, calcium-zinc composite Stabilizer, low-density polyethylene resin, stepless flame retardant and antioxidant, by weight parts are respectively:

[0032]

[0033] Nano-silica is active fumed nano-silica with a density of 0.1-0.2g / cm 3 .

[0034] In this embodiment, the preparation process of the core body of the odorless flame-retardant automobile wiring harness with a shock-absorbing structure is as follows: 58 parts of polypropylene resin-2000, 6 parts of nano-silica, 5 parts of calcium-zinc composite stabilizer, 18 parts Low-density polyethylene resin, 5 parts of inorganic flame retardant, 0.4 parts of antioxidant, 2.5 parts of barium sulfate and 1.7 parts of silicone powder were mixed at 150±10°C and stirred at a l...

Embodiment 3

[0037] See figure 1 , an odorless and flame-retardant automotive wiring harness with a shock-absorbing structure shown in an embodiment of the present invention. The automotive wiring harness includes a core body 1 and a tube body 2 sleeved outside the core body 1. The tube body 2 extends from the inside to the A heat equalizing layer 21, a buffer layer 22 and a heat dissipation layer 23 are provided in sequence on the outside, the heat equalizing layer 21 is made of a heat conducting material, one side of the heat equalizing layer 21 is close to the core body, and the other side is provided with bumps Structure 211. In this embodiment, the buffer layer 22 and the heat equalizing layer 21 are bonded by thermally conductive adhesive. The heat dissipation layer 23 is provided with a plurality of fins 231 on the surface in contact with the outside, so as to dissipate the heat of the core 1 to the outside.

[0038] To sum up: the core body of the odorless and flame-retardant aut...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08L69/00C08L83/04C08L67/00C08K3/36C08K3/30C08K13/02H01B7/295H01B7/18H01B13/00H01B13/06H01B13/22
CPCC08L23/12H01B7/295H01B7/18H01B13/00H01B13/06H01B13/22C08K2201/011C08K2003/3045C08L2201/02C08L2201/22C08L2205/035C08L2207/066C08L23/06C08L69/00C08L83/04C08L67/00C08K3/36C08K3/30C08K13/02
Inventor 张召选
Owner 昆山浩正辰电子有限公司
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