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Crosslinkable resin composition and electrical wire and cable

A resin composition, cross-linking technology, applied in the direction of plastic/resin/wax insulators, insulated cables, cables, etc., can solve the problems of difficulty in extrusion molding of insulating covering layers, stop of extrusion operations, etc., and achieve excellent long-term preservation , reduce the quantity, realize the effect of the production unit

Inactive Publication Date: 2017-08-01
NUC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the clogging of the screen is promoted and clogging is easily caused, and the internal pressure of the machine will rise in a short period of time to stop the extrusion operation.
As a result, it is extremely difficult to continuously extrude the insulating covering over a long period of time (to achieve the extension of the production unit of the wire / cable)

Method used

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  • Crosslinkable resin composition and electrical wire and cable
  • Crosslinkable resin composition and electrical wire and cable
  • Crosslinkable resin composition and electrical wire and cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0192]According to the formulation shown in the following Table 1, 100 parts by mass of resin (A-1), 0.1 parts by mass of stabilizer (B1-1) and 0.1 parts by mass of stabilizer (B1-2) as hindered phenolic stabilizer (B1) Parts by mass, 0.1 parts by mass of stabilizer (B2-1) as dialkyl thiodipropionate type stabilizer (B2), and stabilizer (B3-1) as hindered amine light stabilizer (B3) A mixture of 0.0035 parts by mass and 0.0015 parts by mass of a stabilizer (B3-3) was mixed, and after kneading at a temperature of 180° C. for 10 minutes by a Banbury mixer, the obtained kneaded product was granulated into a diameter of 3 mm, Granules with a length of 2mm.

[0193] Next, 1.6 parts by mass of an organic peroxide (C-1) which was heated to a liquid state was added to the obtained granular kneaded product, mixed with a mixer for 3 hours while being heated to 60° C., and then cooled to room temperature. , thereby obtaining the crosslinkable resin composition of the present invention. ...

Embodiment 2

[0195] According to the formulation shown in the following Table 1, as the hindered amine light stabilizer (B3), a mixture of 0.0025 parts by mass of the stabilizer (B3-1) and 0.0025 parts by mass of the stabilizer (B3-3) was used, in addition, It carried out similarly to Example 1, and obtained the crosslinkable resin composition of this invention.

Embodiment 3

[0197] According to the formulation shown in the following Table 1, as the hindered amine light stabilizer (B3), a mixture of 0.002 parts by mass of the stabilizer (B3-1) and 0.003 parts by mass of the stabilizer (B3-3) was used. In addition, It carried out similarly to Example 1, and obtained the crosslinkable resin composition of this invention.

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Abstract

The purpose of the present invention is to provide a crosslinkable resin composition which is unlikely to cause an increase in pressure or discharge fluctuations in an extruding machine to which the resin has been introduced, with which an insulation coating layer can be stably extrusion molded continuously over a long period of time, and as a result of the foregoing, enables the lengthening of electrical wire and cable production-units. This crosslinkable resin composition contains 100 parts by mass of ethylene resin (A), stabilizer (B) comprising 0.001 to 0.5 parts by mass of hindered amine-type photostabilizer (B3), and 0.5 to 3.0 parts by mass of an organic peroxide (C). The hindered amine-type photostabilizer (B3) is a mixture of low molecular weight-type hindered amine compound having a molecular weight of 100 to 1,000 and a high-molecular weight hindered amine compound having a molecular weight of 1,500 to 5,000. The reducing viscosity (40 DEG C) of the hindered amine-type photostabilizer (B3) is 3.5 to 5.5 cm<3> / g and the reducing viscosity (110 DEG C) of the hindered amine-type photostabilizer (B3) is 2.0 to 3.5 cm<3> / g.

Description

technical field [0001] The present invention relates to a cross-linkable resin composition and an electric wire / cable. More specifically, it relates to a cross-linkable resin composition containing a vinyl resin having good electrical insulation properties, and a cross-linked product of the resin composition as an insulating material. A wire / cable with a covering formed on a conductor. Background technique [0002] Insulation-coated electric wires and cables for electric power are generally produced by coating a conductor with a cross-linkable resin composition by extrusion molding, and then performing a cross-linking treatment to form an insulation coating layer. [0003] Here, resistance to blooming, discoloration, scorch resistance, processing stability, water tree resistance, and heat deformation resistance are required for cross-linkable resin compositions used in insulating covered electric wires / cables , Heat aging resistance, etc. [0004] As a resin composition po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/04C08K5/13C08K5/14C08K5/17C08K5/372C08L101/02H01B3/44H01B7/02
CPCC08K5/14C08K5/17C08K5/372C08L23/04C08L101/02H01B7/02C08K5/1345C08K5/3435C08L23/06H01B3/441C08K5/13H01B3/443C08L2203/202H01B3/44
Inventor 林晃诚大关朋裕
Owner NUC
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