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Cold-resistant sheath material and cable

A cold-resistant sheath and sheath technology, applied in the direction of insulating cables, cables, circuits, etc., can solve the problem of unsatisfactory cold resistance and achieve good corrosion resistance and good insulation performance

Active Publication Date: 2016-03-30
广东吉青电缆实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Moreover, the polyvinyl chloride sheathing material in the prior art has unsatisfactory cold resistance effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0019] Each raw material was weighed according to the data corresponding to Examples 1-5 in Table 1. The raw materials are mixed on a high-speed mixer for 8 minutes, plasticized and granulated on a two-stage screw extruder with an extrusion temperature of 150°C, and the cold-resistant sheathing material of the present invention can be obtained.

[0020] Then the cold-resistant sheath material was molded on a press at 170°C for 15 minutes to make test pieces for experimentation.

[0021] Table 1: Formula table of cold-resistant sheath material Unit: kg

[0022]

[0023] Ethylene-vinyl acetate copolymer is selected from DuPont Company of the United States C250EVA resin.

Embodiment 6

[0025] The cable is prepared by a general method in the field, and the cold-resistant sheath material of Examples 1-5 is prepared as the sheath of the cable.

[0026] Specifically, coaxial cables can be prepared. The coaxial cable is composed of an inner conductor, an insulating layer, an outer conductor and an environment-friendly and cold-resistant sheath made of the materials of Examples 1-5 from the inside to the outside.

Embodiment 2

[0028] The sheath material of embodiment 2, liquid absorption weight 0.01%; Volume resistivity is 4.3 * 10 13 Ω.m; heat resistance 120°C; cold resistance -60°C; resistance to 80°C xylene chemical solvent for 7 days, no change.

[0029] It can be seen that the cold-resistant sheathing material of the present invention is environmentally friendly in the use environment and has cold resistance.

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PUM

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Abstract

The invention discloses a cold-resistant sheath material and a cable. The sheath material comprises following raw materials by weight: 100 parts of PVC resin, 8-16 parts of ethylene-vinyl acetate copolymer, 15-25 parts of dioctyl sebacate, 2-4 parts of calcium stearate, 2-4 parts of zinc stearate, 1-3 parts of polyethylene wax, 2-4 parts of vinyltrimethoxysilane, and 0.2-0.8 part of an antioxidant. The sheath material is good in insulation and corrosion resistance, and is free of hardening and cracking phenomena when being used in an environment having a temperature of -60 DEG C.

Description

technical field [0001] The invention relates to a sheath material and a cable, in particular to a cold-resistant sheath material and a cable. Background technique [0002] PVC sheath material is based on polyvinyl chloride resin, adding stabilizers, dioctyl phthalate, diisodecyl phthalate, dioctyl terephthalate, trioctyl trimellitate Plasticizers such as esters, inorganic fillers such as calcium carbonate, additives such as additives and lubricants, particles prepared by mixing, kneading and extruding. [0003] The traditional PVC wire sheathing material has become an important factor restricting the application of wire and cable in electrical equipment, infrastructure, infrastructure and other occasions due to the presence of a certain amount of harmful substances such as heavy metal elements. In order to protect human health, maintain the ecological environment, reduce threats and pollution to the social environment, and realize sustainable development of enterprises, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L23/08H01B3/44C08K5/11C08K5/098C08K5/5425C08K5/1545C08K5/1565C08K5/20H01B7/28H01B7/18
Inventor 黄毅
Owner 广东吉青电缆实业有限公司
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