A special insulating material for cable joints

Abstract

The invention discloses a special insulating material for a cable connector. The insulating material comprises the following raw materials in parts by weight: 30-50 parts of epoxy resin, 6-10 parts of a curing agent, 15-25 parts of polyvinyl chloride, 8-15 parts of fluorocarbon resin, 10-15 parts of a plasticizer, 6-10 parts of a preservative agent, 3-6 parts of an ultraviolet light absorber, 8-12 parts of zeolite powder, 3-5 parts of cellulose, 7-11 parts of silicone resin, 6-12 parts of phenolic resin, and 3-6 parts of a stabilizer. The insulating material has the advantages of good bonding performance, good insulativity, high-temperature resistance, corrosion resistance, favorable low-temperature cold resistance, and ultraviolet ray prevention. In addition, the insulating property is larger than or equal to 1*1013 Omega. m, the low-temperature cold tolerance is good, the low-temperature tendering temperature is small than or equal to -55 DEG C, the ultraviolet ray can be prevented, tenacity and strength are both provided, the service life can be prolonged to over 50 years, the current loss of the cable can be reduced by more than 85 percent, and the requirements of the market on the insulating material of the cable are met.

Description

technical field [0001] The invention belongs to the technical field of insulating materials for cable joints, and in particular relates to an acid-resistant, corrosion-resistant, high-temperature-resistant insulating material for cable joints. Background technique [0002] Among the various protection methods for wire and cable joints, the use of insulating tape is the most common. The insulating tape is composed of a base tape and a pressure-sensitive adhesive layer. The base belt is generally made of cotton cloth, synthetic fiber fabric, glass cloth, polyester and PVC plastic film, etc. The adhesive layer is made of rubber and tackifying resin and other compounding agents. It has the advantages of good viscosity, excellent insulation performance, flame retardant and self-extinguishing. However, due to the use of bundling, it is inevitable that there will be a gap between the joints between the wires. The consequence of this gap is that the air and corrosive gases in the a...

AI Technical Summary

Problems solved by technology

However, the insulating materials in the prior art cannot have good insulation, high temperature resistance, corrosion resistance, low temperature cold resistance, etc., and often the high temperature resistance is improved, but the low temperature cold resistance is reduced, or the low temperature cold resistance is reduced or the strength is greatly reduced. service life