Composition for electric wire protective material, electric wire protective material, and wire harness

A technology for protecting materials and compositions, applied in the field of wire harnesses, to achieve good resistance

Active Publication Date: 2014-12-31
AUTONETWORKS TECH LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this flame retardant bellows is flame retardant, since polyolefin is used, the heat resistance range is usually around 80 to 90°C at a temperature that can be used continuously.

Method used

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  • Composition for electric wire protective material, electric wire protective material, and wire harness
  • Composition for electric wire protective material, electric wire protective material, and wire harness
  • Composition for electric wire protective material, electric wire protective material, and wire harness

Examples

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Embodiment

[0064] Examples and comparative examples of the present invention are shown below. In addition, the present invention is not limited to these examples.

[0065] [Test materials and manufacturers]

[0066] The test materials used in Examples and Comparative Examples are shown together with manufacturers, trade names, and the like. Regarding polypropylene, MFR, melting point, tensile strength, Charpy impact strength, etc. are shown in the table.

[0067] (A: Polypropylene)

[0068] [1] Block PP1: Japan Polypro Co., Ltd., trade name "EC9"

[0069] [2] Block PP2: made by Prime Polymer Co., Ltd., trade name "J356HP"

[0070] [3] Block PP3: made by Prime Polymer Co., Ltd., trade name "J704UG"

[0071] [4] Block PP4: Made by Prime Polymer Co., Ltd., trade name "J705UG"

[0072] [5] Block PP5: Japan Polypro Co., Ltd., trade name "EG8"

[0073] [6] Homopolymer PP: manufactured by Prime Polymer Co., Ltd., trade name "E203GP"

[0074] [7] PP elastomer: manufactured by Sumitomo Ch...

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Abstract

Provided are a composition for an electric wire protective material, an electric wire protective material, and a wire harness. The present invention exhibits excellent resistance to heat, flame, and calcium chloride, and exhibits durability with regard to a braided wire. A composition for an electric wire protective material, the composition containing: a polypropylene of which 50 to 95 mass% of the monomers is a propylene monomer, and which has an MFR of 0.5 to 5 g/10 minutes and a melting point of 150 DEG C or higher; a bromine-based flame retardant and antimony trioxide; a phenolic antioxidant; and a metal deactivator. The polypropylene has a tensile strength of 20 to 35 MPa, and a Charpy impact strength of 10 kJ/m2 or more at 23 DEG C. The composition contains 1.5 to 15 parts by mass of the bromine-based flame-retardant agent and the antimony trioxide combined, 0.1 to 3 parts by mass of the phenolic antioxidant, and 0.1 to 3 parts by mass of the metal deactivator per 100 parts by mass of the polypropylene.

Description

technical field [0001] The present invention relates to a wire protection material for protecting vehicle parts of motor vehicles, electric / electronic equipment components, etc., for protecting wire bundles such as corrugated tubes, a composition for wire protection materials used for the wire protection material, and the use of the above-mentioned Wire harness for wire protection material. Background technique [0002] Conventionally, as a protective material for electric wires of automobiles, as described in Patent Document 1, a flame-retardant corrugated tube made of a flame-retardant composition obtained by blending a specific bromine-based flame retardant into polyolefin is known. Although this flame-retardant bellows has flame retardancy, since polyolefin is used, the heat resistance range at a temperature that can be used continuously is generally about 80 to 90°C. Wire protection materials require higher heat resistance. [0003] In recent years, the demand for veh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/29C08F210/06C08K3/22C08K5/13C08K5/3445C08L23/14H01B7/00H01B7/24H02G3/04
CPCC08K5/13C08K5/3445C08L23/14H01B7/295C08K5/49H02G3/0412H01B3/441H01B7/2813C08F210/06C08F2500/12C08K3/22B60R16/0215H02G3/0406
Inventor 伊藤健二佐藤正史
Owner AUTONETWORKS TECH LTD
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