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PVC (polyvinyl chloride) electrical insulating tape

A technology of electrical insulation and PVC film, applied in the direction of adhesives, film/sheet adhesives, etc., can solve the problems of poor thermal stability, environmental pollution, discoloration, etc., and achieve the effect of improving stability and avoiding environmental pollution

Active Publication Date: 2014-09-17
开平天亿胶粘科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of PVC is that its thermal stability is poor, and it will cause deterioration phenomena such as discoloration and thermal degradation during use. At present, some heavy metals or heavy metal compounds, such as lead or cadmium-containing compounds, are usually added as the heat of PVC. Stability, these heavy metals cause serious pollution to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] 100 parts of PVC resin (SG 2 type), 50 parts of oxidized paraffin wax plasticizer, 3 parts of calcium glycerophosphate, 3 parts of zinc carbonate and 1 part of titanium dioxide, mixed, fed into the extruder, extruded A thin film was formed, and its thermal stability time at 200°C was 110 minutes.

[0013] Then, one side of the PVC film obtained above was coated with an acrylic adhesive (Shanghai Kangda WD5015) to obtain a PVC electrical insulating tape.

[0014] Contrast 1: 100 parts of PVC resin (SG 2 type), 50 parts of oxidized paraffin wax plasticizer, 6 parts of calcium glycerophosphate, and 1 part of titanium dioxide were mixed, fed into the extruder, and extruded into The film has a thermal stability time of 45 minutes at 200°C. Then, one side of the obtained PVC film was coated with an acrylic adhesive (Shanghai Kangda WD5015) to obtain a PVC electrical insulating tape.

Embodiment 2

[0016] Mix 100 parts of PVC resin (SG 2 type), 30 parts of dicaprylic acid phthalate (DOP plasticizer), 3 parts of calcium glycerophosphate and 1.8 parts of zinc carbonate, and feed them into the extruder. Extruded into a film, its heat stability time at 200°C was 105 minutes.

[0017] Then, one side of the PVC film obtained above was coated with an acrylic adhesive (Shanghai Kangda WD5015) to obtain a PVC electrical insulating tape.

[0018] Contrast 2: 100 parts of PVC resin (SG 2 type), 30 parts of DOP plasticizer and 4.8 parts of zinc carbonate, mixed, fed into the extruder, extruded into a film, its heat at 200 ° C The stabilization time was 42 minutes. Then, one side of the obtained PVC film was coated with an acrylic adhesive (Shanghai Kangda WD5015) to obtain a PVC electrical insulating tape.

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PUM

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Abstract

The invention discloses a PVC (polyvinyl chloride) electrical insulating tape. The insulating tape takes a PVC (polyvinyl chloride) film as a substrate, wherein an adhesive layer is adhered to the surface of the PVC film; the PVC film is prepared from 100 parts of PVC resin and 4-6 parts of heat stabilizer. The insulating tape is characterized in that the heat stabilizer is a mixture of calcium glycerophosphate and zinc carbonate in a mass ratio of 1:(0.6-1). The stability of the PVC substrate can be obviously improved and the problem of environmental pollution caused by using heavy metals can be also avoided by adopting the mixture of calcium glycerophosphate and zinc carbonate as the heat stabilizer.

Description

technical field [0001] The invention relates to an electrical insulating tape, more specifically an insulating tape with PVC as a base material. Background technique [0002] PVC has become the most commonly used base material for insulating tape because of its excellent flexibility and conformability, and its low price. However, the disadvantage of PVC is that its thermal stability is poor, and it will cause deterioration phenomena such as discoloration and thermal degradation during use. At present, some heavy metals or heavy metal compounds, such as lead or cadmium-containing compounds, are usually added as the heat of PVC. Stability, these heavy metals cause serious pollution to the environment. Contents of the invention [0003] The technical problem to be solved by the invention is to overcome the existing defects and provide an electrical insulation tape with PVC as the base material. [0004] In order to solve the problems of the technologies described above, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C08L27/06C08K5/521C08K3/26
Inventor 钱元平
Owner 开平天亿胶粘科技有限公司