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Protective tube for automobile wire harness and preparation method thereof

A technology for protecting tubes and automobile wires, which is applied in the field of protecting tubes for automobile wiring harnesses and its preparation, can solve the problems of poor flame retardancy and aging resistance, low reliability and safety, and unreasonable formula, and achieves the same Good capacitance, low smoke density, and the effect of alleviating zinc burning

Pending Publication Date: 2020-11-17
ANHUI HAOTIAN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the special working environment of the automobile, the requirements for the protective tube are relatively high. The material formula used for the existing wire harness protective tube is still not very reasonable, and its flame retardancy and aging resistance are not good. and low security, which is likely to cause safety accidents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A protective tube for automobile wiring harness, whose raw materials by weight include: 100 parts of polyvinyl chloride, 9 parts of ethylene-vinyl acetate copolymer, 2 parts of chlorinated polyethylene, 1.2 parts of calcium benzoate, 0.6 parts of zinc stearate, 1.5 parts of sorbitol, 12 parts of epoxy soybean oil, 17 parts of epoxy fatty acid methyl ester, 4 parts of tetraethylene glycol diheptanoate, 1.5 parts of lubricant, 17 parts of composite filler, 4 parts of rare earth complex, acetylacetone Copper 2 parts, aluminum hydroxide 3 parts, ammonium polyphosphate 5 parts, zinc borate 1 part, antioxidant 10980.7 parts, antioxidant 1260.2 parts, light stabilizer UV40502 parts.

[0020] A preparation method of the protective tube for automobile wiring harness includes the following steps: placing part of the polyvinyl chloride and rare earth complexes in a vibrating milling device, vibrating for 5 hours at 45°C, and then mixing with the remaining raw materials at 130°C for 30...

Embodiment 2

[0022] A protective tube for automobile wiring harnesses, the raw materials of which include 100 parts by weight of polyvinyl chloride with a weight average molecular weight of 80,000, 5 parts of ethylene-vinyl acetate copolymer with a vinyl acetate mass content of 35%, and a chlorine molar content of 35 parts. % Chlorinated polyethylene 5 parts, calcium benzoate 0.7 parts, zinc stearate 0.2 parts, sorbitol 1 part, epoxy soybean oil 24 parts, epoxy fatty acid methyl ester 18 parts, tetraethylene glycol diheptanoic acid 9 parts of ester, 1 part of paraffin, 1.25 parts of precipitated barium sulfate, 2.5 parts of nano-silica, 0.5 parts of calcium carbonate, 0.75 parts of magnesium hydroxide, 8 parts of rare earth complexes, 2.3 parts of copper acetylacetonate, 9 parts of aluminum hydroxide, 3 parts of ammonium polyphosphate, 5 parts of zinc borate, 10,981 parts of antioxidants, 1261.3 parts of antioxidants, and 0.9 parts of light stabilizer UV4050;

[0023] Wherein, the rare earth ...

Embodiment 3

[0026] A protective tube for automobile wiring harnesses, the raw materials of which comprise by weight: 100 parts of polyvinyl chloride with a weight average molecular weight of 90,000, 4 parts of ethylene-vinyl acetate copolymer with a vinyl acetate mass content of 25%, and a chlorine molar content of 36 % Chlorinated polyethylene 3 parts, calcium benzoate 0.4 parts, zinc stearate 1 part, sorbitol 0.3 parts, epoxy soybean oil 16 parts, epoxy fatty acid methyl ester 12 parts, tetraethylene glycol diheptanoic acid Esters 6 parts, stearic acid 0.1 parts, stearamide 0.4 parts, precipitated barium sulfate 1.1 parts, nano silica 11 parts, calcium carbonate 6.6 parts, magnesium hydroxide 3.3 parts, rare earth complex 3 parts, copper acetylacetonate 0.5 Parts, 6 parts of aluminum hydroxide, 1 part of ammonium polyphosphate, 1.7 parts of zinc borate, 10980.2 parts of antioxidant, 1260.7 parts of antioxidant, 0.4 parts of light stabilizer UV4050;

[0027] Wherein, the rare earth complex ...

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PUM

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Abstract

The invention discloses a protective tube for an automobile wire harness. The protective tube comprises the following raw materials in parts by weight: 100 parts of polyvinyl chloride, 5-9 parts of anethylene vinyl acetate copolymer, 2-5 parts of chlorinated polyethylene, 0.4-1.2 parts of calcium benzoate, 0.2-1 part of zinc stearate, 0.3-1.5 parts of sorbitol, 12-24 parts of epoxidized soybean oil, 10-20 parts of epoxidized fatty acid methyl ester, 4-9 parts of tetraethylene glycol diheptanoate, 0.5-1.5 parts of a lubricant, 5-22 parts of a composite filler, 3-8 parts of a rare earth complex, 0.5-2.3 parts of copper acetylacetonate, 3-9 parts of alumina, 1-5 parts of ammonium polyphosphate, 1-5 parts of zinc borate, 0.2-1 part of an antioxidant 1098, 0.2-1.3 parts of an antioxidant 126 and 0.4-2 parts of a light stabilizer UV4050. The invention further provides a preparation method of the protective tube. The method is simple in process, and the prepared protective tube is good in flame retardance and aging resistance.

Description

Technical field [0001] The invention relates to the technical field of protective tubes, in particular to a protective tube for automobile wiring harnesses and a preparation method thereof. Background technique [0002] The automobile wiring harness is the continuous carrier of the various components of the automobile. Its main function is to ensure the transmission of electrical signals. It also needs to ensure the reliability of the connection circuit, supply the specified current value to the electronic and electrical components, prevent electromagnetic interference to the surrounding circuit, and eliminate it Electrical short circuits play an irreplaceable role in the field of automotive circuits. The failure of the wiring harness not only affects the on and off of the vehicle signal, but even endangers the driver's life. In order to better protect the wire harness, a protective tube needs to be wrapped around the outer layer of the wire harness. However, due to the special ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/08C08L23/28C08K13/02C08K5/098C08K5/053C08K3/22C08K3/32C08K3/38C08K5/07C08K3/30C08K3/26C08K5/00
CPCC08L27/06C08L2203/18C08L2201/02C08L2205/035C08L2201/08C08K2201/011C08K2201/014C08K2003/2227C08K2003/323C08K2003/387C08K2003/265C08K2003/2224C08L23/0853C08L23/286C08K13/02C08K5/098C08K5/053C08K3/22C08K3/32C08K3/38C08K5/07C08K3/30C08K3/26C08K5/0091
Inventor 许成杰
Owner ANHUI HAOTIAN NEW MATERIALS CO LTD
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