Low temperature adhesive type self-adhesive paint for transposing cable of transformer

A technology of transposed wire and self-adhesive paint, which is applied in coil manufacturing, coating, epoxy resin coating, etc. Burst short circuit resistance, improved integrity and mechanical strength, effect of low thermal bonding temperature

Active Publication Date: 2015-05-20
SHANGHAI ELECTRIC CABLE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a low-temperature adhesive self-adhesive varnish for transformer transposition wires, which is used to overcome the inability of the self-adhesive varnish in the prior art to meet the requirements of ultra-high voltage and ultra-high voltage transformers. Deficiencies of the need for low-temperature bonding of transposed wires

Method used

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  • Low temperature adhesive type self-adhesive paint for transposing cable of transformer
  • Low temperature adhesive type self-adhesive paint for transposing cable of transformer
  • Low temperature adhesive type self-adhesive paint for transposing cable of transformer

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Embodiment 1

[0030] The self-adhesive paint disclosed in this embodiment comprises the following raw material components in parts by weight:

[0031]

[0032] The number average molecular weight of the epoxy resin is 5000-8000.

[0033] The softening point of the epoxy resin is 140-150°C.

[0034] The acid anhydride curing agent is 3-methyltetrahydrophthalic anhydride.

[0035] The leveling agent is selected from polyacrylate; the number average molecular weight of the polyacrylate is 5000-6000.

Embodiment 2

[0037] The self-adhesive paint disclosed in this embodiment comprises the following raw material components in parts by weight:

[0038]

[0039] The number average molecular weight of the epoxy resin is 5000-8000.

[0040] The softening point of the epoxy resin is 140-150°C.

[0041] The acid anhydride curing agent is 4-methyltetrahydrophthalic anhydride.

[0042] The leveling agent is selected from polyacrylate; the number average molecular weight of the polyacrylate is 5000-6000.

Embodiment 3

[0044] The self-adhesive paint disclosed in this embodiment comprises the following raw material components in parts by weight:

[0045]

[0046]

[0047] The number average molecular weight of the epoxy resin is 5000-8000.

[0048] The softening point of the epoxy resin is 140-150°C.

[0049] The acid anhydride curing agent is methyl hexahydrophthalic anhydride.

[0050] The leveling agent is selected from polyacrylate; the number average molecular weight of the polyacrylate is 5000-6000.

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Abstract

The invention provides low temperature adhesive type self-adhesive paint for a transposing cable of a transformer. The self-adhesive paint comprises the following raw material components in parts by weight: 116-120 parts of epoxy resin, 46-50 parts of anhydride type curing agent, 1.6-2 parts of epoxidized soybean oil, 0.3-0.4 part of flatting agent and 100-120 parts of xylene. The low temperature adhesive type self-adhesive paint for the transposing cable of the transformer is applied to the transposing cable of the extra-high voltage and extreme high voltage transformers for meeting the low temperature adhesive requirement for the transposing cable of the extra-high voltage and extreme high voltage transformers.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a low-temperature adhesive self-adhesive paint for high-voltage transformer transposition wires. Background technique [0002] The domestic application number is 2013105988200, which provides a high-temperature-resistant and environment-friendly enameled wire hot-melt self-adhesive paint and its preparation method. It is made of the following raw materials in parts by weight: nylon 12112-15, polystyrene 8-12, polyacrylonitrile 10-12, E-12 epoxy resin 8-10, diphenylmethane diisocyanate 2-3, organic Silicone resin 7~9, silane coupling agent 1~2, polytetrafluoroethylene 2~3, polyurethane acrylate 10~15, zinc oxide 3~4, magnesium oxide 1~2, nano silicon dioxide 1~2, auxiliary Agent 7-9, xylene 100-120, m-p-cresol 80-90; the enameled wire hot-melt self-adhesive paint prepared by the formula disclosed in the invention can meet the heat resistance requirements above 180 ℃, and the p...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D7/12C08G59/42H01F41/04
Inventor 颜俊李福潘国梁
Owner SHANGHAI ELECTRIC CABLE RES INST
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