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Liquid insulating glue for cable joint

A technology of liquid insulation and cable joints, applied in the field of chemicals, can solve problems such as poor contact, fire, and increased contact resistance, and achieve the effects of excellent insulation performance, fast solvent volatilization, and corrosion prevention

Inactive Publication Date: 2011-02-02
海宁市科泰克金属表面技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The consequence of this gap is that the air and corrosive gases in the air and corrosive liquids such as rainwater are easy to contact the wire through the gap, which will cause the wire to oxidize, poor contact, contact resistance increase, joint heating and other faults. cause a fire
[0003] In the electrical industry, there are epoxy resins, silicone resins, modified phenolic resins, polyester and polyurethane resins, and various chemically modified products based on the above thermosetting resins, especially epoxy-silicon Ketone-heterocyclic polymers are mutually modified insulating adhesives, which have the advantages of various single polymers and are unique in the insulation and packaging of electric heating devices that require high heat resistance, but these can only be used for relatively Fixtures with flexible wires and cables cannot be used

Method used

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  • Liquid insulating glue for cable joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Take 25 kg of modified chloroprene rubber, add 50 kg of xylene and soak for 2 hours, after the modified chloroprene rubber is expanded, add xylene to dilute to 100 kg, stir evenly, and take a sample for testing.

Embodiment 2

[0018] Get 13 kilograms of modified chloroprene rubber, 12 kilograms of modified styrene-butadiene rubber, add 50 kilograms of xylene and soak for 2 hours, after the modified chloroprene rubber and modified styrene-butadiene rubber are expanded, add toluene to dilute to 100 kilograms, stir Uniform, sample test.

Embodiment 3

[0020] Take 30 kg of modified butyl rubber, 0.5 kg of rosin, add 50 kg of xylene and soak for 2 hours, after the modified butyl rubber is expanded, add benzene to dilute to 100 kg, stir evenly, and take samples for testing.

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PUM

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Abstract

The invention belongs to electric wire and cable protection and electric insulating adhesive tapes, and particularly relates to liquid insulating glue for a cable joint. The liquid insulating glue contains modified rubber and non-polar solvent and also can contain oil-soluble resin and / or copper corrosion inhibitor, wherein the consumption of the modified rubber is 10 to 40 percent of the total mass; and a formed insulating protective layer has excellent insulating performance and properties of resisting moisture, water, oxidation and acid and alkali corrosion. The liquid insulating glue can be used for joint coating and insulation of a metal lead, and also can be used for repair of cable outer sheaths and waterproof seal of embedded electric wires and cables.

Description

technical field [0001] The invention belongs to the category of wire and cable protection and electrical insulating tape, in particular to a chemical used for insulation protection of wire and cable joints and preventing oxidation, discoloration or corrosion. 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 corrosiv...

Claims

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Application Information

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IPC IPC(8): C09J115/00C09J111/00C09J123/26C09J9/00H01R4/70
Inventor 黄海宾孙沈良
Owner 海宁市科泰克金属表面技术有限公司
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