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Flame retardant Anti-termite resin composition, power cable and method for producing same

A technology of resin composition and power cable, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of high material cost, high manufacturing cost, large cable outer diameter, etc., and achieves excellent extrusion processability and termite resistance. and excellent cold resistance

Pending Publication Date: 2021-11-02
FURUKAWA ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, when the sheath is made into a double-layer structure or a three-layer structure, there are problems in that the outer diameter of the cable becomes larger, and that the material cost and the manufacturing cost become higher due to lamination of different materials.

Method used

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  • Flame retardant Anti-termite resin composition, power cable and method for producing same
  • Flame retardant Anti-termite resin composition, power cable and method for producing same
  • Flame retardant Anti-termite resin composition, power cable and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0129] (Preparation and Performance Evaluation of Flame Retardant and Antitermite Resin Composition)

[0130] The flame-retardant and anti-termite resin composition was prepared as follows, and each sheet was obtained using it, and each evaluation was performed.

[0131] [Examples of the present invention (sheets No.1 to No.5) and comparative examples (sheets No.c1 to No.c5)]

[0132] Polyvinyl chloride resin (PVC) [ZEST1400Z manufactured by Shin Dai-Ichi Vinyl Corporation, average degree of polymerization 1,400], triallyl isocyanurate [Nippon Chemical Co., Ltd. Co., Ltd. TAIC (registered trademark)] and zinc borate (FIREBREAK290 manufactured by BORAX, USA) were mixed to obtain a resin composition, which was kneaded using a roll mill set at a kneading temperature of 150°C to produce Resin, two sheet samples with different thicknesses were produced. This was press-molded at 170° C. under a pressure of 11 MPa for 15 minutes to obtain smooth sheets No.1 to No.5 and sheet No.c1 ...

Embodiment 2

[0166] (manufacturing and performance evaluation of power cables)

[0167] Manufactured as follows figure 1 A power cable 10 as shown has an inner semiconductive layer 2 , an insulator layer 3 , an outer semiconductive layer 4 , a shield layer 5 , and a sheath 6 in this order on the outer periphery of a conductor 1 .

[0168] 1) The making of the power cable of the example of the present invention

[0169] Use a cross-sectional area of ​​800mm 2 A circular compressed conductor made of copper is used as a conductor, and an internal semiconductive layer formed of cross-linked polyethylene with carbon added with a thickness of 1 mm, and a cross-linked polyethylene with a thickness of 11 mm [manufactured by NUC Co., Ltd. The insulator layer formed by insulating agent NUCV-9253], and the outer semiconductive layer formed by cross-linked polyethylene with added carbon with a thickness of 0.5 mm.

[0170] Then, a shielding layer with an aluminum metal added to the outer periphery...

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Abstract

Provided are: a flame retardant anti-termite resin composition which exhibits excellent flame retardancy, anti-termite properties, cold resistance and extrudability and from which a power cable can be produced inexpensively; a power cable; and a method for producing a power cable. This flame retardant anti-termite resin composition contains a poly(vinyl chloride) resin, a compound having an isocyanurate structure and a boron-containing compound. Relative to 100 parts by mass of the poly(vinyl chloride) resin, the content of the compound having an isocyanurate structure is 0.05-10 parts by mass and the content of the boron-containing compound is 10-55 parts by mass.

Description

technical field [0001] The invention relates to a flame-retardant and termite-proof resin composition, a power cable and a manufacturing method thereof. Background technique [0002] In cables such as power cables and communication cables, a protective sheath (hereinafter referred to as sheath) is provided on the outermost layer, and the coating is usually formed by extrusion molding general-purpose resins such as polyethylene and polyvinyl chloride (PVC). [0003] Various functions are required of the sheath depending on the laying place of the cable. For example, when cables are laid underground in areas where termites are active, a sheath that has termite resistance (a property that prevents pest damage from termites) and flame retardancy is required. [0004] Therefore, the sheath is usually not a single layer, but a double layer structure in which PVC excellent in flame retardancy and nylon excellent in termite resistance are laminated in this order, and a three layer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K3/38C08K5/3492H01B7/18H01B7/295
CPCC08L27/06C08K5/3492H01B7/18C08K3/38H01B7/295Y02A30/14
Inventor 菊池早记樱井贵裕
Owner FURUKAWA ELECTRIC CO LTD
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