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Cable and electric wire

A cable and conductor technology, applied in the direction of insulated cables, bendable cables, cables, etc., can solve the problems of cable breakage and low recovery of the outer skin.

Pending Publication Date: 2021-05-28
株式会社博迈立铖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when soft PVC is used for the outer skin layer, the resilience of the outer skin layer is low, so the cable may break during the operation of the FA robot.

Method used

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  • Cable and electric wire
  • Cable and electric wire
  • Cable and electric wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0170] First, a conductor, a resin composition for forming an insulating layer, and a flame-retardant resin composition for forming a skin layer are prepared.

[0171] As the conductor, a 28AWG (19 / 0.08) TA conductor was used.

[0172] As the resin composition for forming the insulating layer, a composition containing ETFE (tetrafluoroethylene-ethylene copolymer) as a fluororesin was used.

[0173]The flame-retardant resin composition for forming the skin layer was prepared by mixing and kneading the above-mentioned materials so as to have the composition shown in Table 1 below. Specifically, 100 parts by mass of chlorinated polyethylene 1 and 41.8 parts by mass of adipate-type TPU1 as the base polymer (A), 30.0 parts by mass of TOTM as the plasticizer (B), and as the stabilizer (C 11.66 parts by mass of hydrotalcite (c1), 1.14 parts by mass of zinc stearate as metal soap (c2), 1.2 parts by mass of stabilizing aid, 5.0 parts by mass of flame retardant (D) belonging to metal h...

Embodiment 2～6

[0178] In Examples 2-6, as shown in Table 1, except having changed the kind and compounding quantity of (A) component - (D) component suitably, it carried out similarly to Example 1, and produced the cable.

Embodiment 7～17

[0182] In Examples 7 to 17, as shown in the following Table 2, chlorinated polyethylene (a1), adipate-based TPU (a2) and polyvinyl chloride resin (a3) ​​were used, and the content of each component was appropriately changed. Except for this, a cable was produced in the same manner as in Example 1.

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Abstract

The present invention addresses the problem of obtaining flame retardancy, heat resistance, and recoverability in a balanced manner at a high level for a cable. The cable is provided with a conductor, an insulating layer covering the periphery of the conductor, and an outer skin layer covering the periphery of the insulating layer. The outer skin layer is formed from a flame-retardant resin composition containing a base polymer (A), a plasticizer (B), a stabilizer (C), and a flame retardant (D), and the base polymer (A) comprises chlorinated polyethylene (a1) and at least one polyurethane thermoplastic elastomer (a2) selected from an adipate-based polyurethane elastomer, a lactone-based polyurethane elastomer and a carbonate-based polyurethane elastomer. The stabilizer (C) comprises hydrotalcite (c1) and a metal soap (c2), and the flame retardant (D) comprises at least one of a metal hydroxide (d1), a bromine-based flame retardant (d2), amorphous silica (d3) and antimony trioxide (d4).

Description

technical field [0001] The present invention relates to cables and wires. Background technique [0002] The electric cable is constituted by, for example, providing a sheath (so-called sheath) as a covering material around an electric wire provided with an insulating layer around a conductor. The outer skin layer is formed of a resin composition mainly made of rubber and resin, and as the resin composition, for example, a soft vinyl chloride resin composition (soft PVC) containing a flame retardant is used. [0003] Resin compositions are required to have different properties depending on the application of the cable. For example, cables for FA robots require flame retardancy, heat resistance, and resilience. In particular, in recent years, FA robots are multi-joint and multi-axis, and the cables used are repeatedly bent along with the movement of the equipment, so high resilience is required. The term "restorability" refers to the property that the cable returns to its o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B3/44H01B3/30H01B7/04H01B7/28H01B7/29H01B7/295
CPCH01B3/443H01B3/302H01B7/295H01B7/292H01B7/28H01B7/041
Inventor 菊池龙太郎三浦刚
Owner 株式会社博迈立铖
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