Cable sheath material added with coumarone-indene resin and preparation method of cable sheath material

Abstract

The invention discloses a cable sheath material added with coumarone-indene resin. The cable sheath material is prepared from the following raw materials in parts by weight: 35 to 55 parts of nitrilerubber, 15 to 25 parts of coumarone-indene resin, 20 to 30 parts of tetrafluoroethylene-perfluoroalkyl vinyl ether copolymers, 2 to 5 parts of a waste tire rubber powder, 1 to 3 parts of asphalt, 2 to5 parts of carbon black, 1 to 3 parts of chlorinated paraffin, 0.5 to 1.5 parts of dibasic lead phosphite, 0.5 to 1.5 parts of 2-hydroxy-4-methoxydiphenylketone, 3 to 5 parts of a plastic reinforcingagent, 1 to 3 parts of a ceramic micropowder, 0.5 to 1.5 parts of zinc oxide, 2 to 4 parts of a cross-linking agent and 1 to 2 parts of an assistant crosslinker. The invention also discloses a preparation method of the cable sheath material added with the coumarone-indene resin. The sheath material disclosed by the invention is subjected to secondary cross-linking complex processing and does notneed to be vulcanized; a production method is simple, and convenience in processing and use is realized; the sheath material has the advantages of excellent ageing resistance, long service life, goodelectrical insulation property, no moisture absorption, great insulation resistance as well as excellent corrosion resistance and environmental stress cracking resistance.

Description

technical field [0001] The invention relates to the technical field of cable sheath materials, in particular to a cable sheath material added with coumarone-indene resin and a preparation method thereof. Background technique [0002] With the development of social urbanization, technology and humanization, and the rapid development of the plastic industry, cable materials are getting closer to people's lives. It is well known that the function of the cable sheath is to protect the insulating core of the cable under the action of external force. A protective layer that protects against damage. Due to the wide use of cables, the use environment they face is particularly complex. In the complex use environment, the sheath material may be affected by various friction, corrosion, abrasion, high temperature and other harsh conditions. The insulation of the thin sheath Both the level and the mechanical level will drop, coupled with routine sheath test detection or a line ground fa...

AI Technical Summary

Problems solved by technology

Under long-term use, most cable sheaths are prone to problems such as aging, low tensile yield strength and tensile strength, low toughness and brittleness, and low volume resistivity.

[0003] Coumarone-indene resin is a copolymer of benzofuran (oxyindene) and indene. It is a kind of artificial resin. Research on wire sheath materials to improve the deficiencies of existing sheath materials