Cold-resistant insulating bandage capable of being used in severe environment

Abstract

The invention discloses a cold-resistant insulating bandage capable of being used in the severe environment. The cold-resistant insulating bandage is prepared from raw materials in parts by weight as follows: 1.5-1.6 parts of indianite nano tubes, 0.75-0.77 parts of a silane coupling agent kh 570, a proper amount of deionized water, a proper amount of absolute ethyl alcohol, 1.2-1.4 parts of sodium dodecyl sulfate, 1.4-1.5 parts of alkylphenol ethoxylates, 55-60 parts of butyl acrylate, 40-43 parts of ethylhexyl acrylate, 40-44 parts of isotactic polypropylene, 53-55 parts of polyvinyl chloride, 3-4 parts of dibenzylidene sorbitol, a proper amount of dioctyl phthalate, 9-10 parts of dioctyl adipate, 0.6-0.7 parts of tricresyl phosphate, 6-8 parts of stearin ester, 2-3 parts of sunflower oil and 8-9 parts of nano clay. The prepared product can be used for cable binding in the severe outdoor environment and is high in viscosity, ageing-resistant, cold-resistant and high-temperature-resistant.

Description

technical field [0001] The invention relates to the field of electrical technology, in particular to a cold-resistant insulating wrapping tape that can be used in severe environments. Background technique [0002] Insulating bandages are mainly used to wrap joints and interfaces of wires and cables. In addition to being used for ordinary electrical insulation, they are also widely used in engineering pipeline protection, endoscopic line protection, and automotive wiring harness bundling protection. The prior art cloth-based insulating tape is composed of cloth base, rubber, rosin, and filler coating glue, which has good mechanical strength and insulation effect, but the cloth-based tape is easy to age, has poor waterproofness and sealing performance, and is exposed to high temperature and high pressure. , The shielding performance of the tape is greatly reduced, which makes it unable to be used in more fields. The existing polyethylene nitrogen pressure-sensitive adhesive t...

AI Technical Summary

Problems solved by technology

The prior art cloth-based insulating tape is composed of cloth base, rubber, rosin, and filler coating glue, which has good mechanical strength and insulation effect, but the cloth-based tape is easy to age, has poor waterproofness and sealing performance, and is exposed to high temperature and high pressure. , the shielding performance of the tape is greatly reduced, resulting in the inability to be used in more fields

The existing polyethylene nitrogen pressure-sensitive adhesive tape is a general-purpose electrical adhesive tape, which is cheap, has excellent electrical properties and physical and mechanical properties, and has an electrical strength of up to 60kV / mm, high volume resistivity, soft and It is easy to stretch, and also has excellent acid and alkali resistance, aging resistance, cold resistance and humidity resistance. It is widely used in the connection winding and insulation protection of AC and DC wires, the manufacture of electrical equipment, and the wrapping of various wire harnesses and cables. , the disadvantage is that the temperature resistance level is not high, and the heat dissipation performance is poor

[0003] In the article "Emulsion pressure-sensitive adhesive suitable for soft polyvinyl chloride electrical adhesive tape and its manufacturing method", although the tape made has the advantages of low softening point, strong cohesive force, and fast curing, but due to the polyacrylate The linear molecular structure determines its lack of heat resistance and mechanical strength. In addition, the application of emulsion-type acrylate pressure-sensitive adhesives is slow, the drying energy consumption is high, and the surface tension is high. To broaden its scope of use and improve its comprehensive performance, it is necessary to modify polyvinyl chloride substrates and acrylate pressure-sensitive adhesives