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Insulating resin composite material, high-voltage insulating sleeve and preparation method and application of high-voltage insulating sleeve

A technology of insulating resin and composite material, which can be used in insulators, insulators, electrical components, etc., and can solve the problems of increased dielectric loss and low mechanical strength.

Pending Publication Date: 2021-08-06
厦门市宜帆达新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new insulating resin composite material and high-voltage insulation bushing to overcome the defects that the dielectric loss will increase significantly and the mechanical strength is low when the existing epoxy high-voltage insulating bushing is used at high temperature. The bushing and its preparation method and application, the dielectric loss of the high-voltage insulating bushing made of the insulating resin composite can still be kept at a low level and the mechanical strength is high when used at a relatively high temperature

Method used

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  • Insulating resin composite material, high-voltage insulating sleeve and preparation method and application of high-voltage insulating sleeve
  • Insulating resin composite material, high-voltage insulating sleeve and preparation method and application of high-voltage insulating sleeve
  • Insulating resin composite material, high-voltage insulating sleeve and preparation method and application of high-voltage insulating sleeve

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preparation example Construction

[0032] The preparation method of the insulating resin compound provided by the present invention comprises uniformly mixing component A, component B and optional component C to obtain the insulating resin compound. Wherein, the component A, component B and component C have been described above and will not be repeated here.

[0033] In a preferred embodiment, when the insulating resin compound does not contain component C, the preparation method of the insulating resin compound comprises the following steps:

[0034] S11. Preparation of component A and component B: bisphenol A epoxy resin, N,N,N',N'-tetraepoxypropyl-4,4'-diaminodiphenylmethane and 3,4 -Epoxycyclohexylmethyl 3,4-epoxycyclohexyl carboxylate was heated to 50-80°C, stirred and mixed evenly under vacuum to obtain component A; phthalic anhydride, methyltetrahydrophthalic anhydride, methyl Hexahydrophthalic anhydride and benzyltriethylammonium chloride were heated to 50-80°C, stirred and mixed evenly under vacuum to...

Embodiment 1

[0049] This embodiment is used to illustrate the insulating resin composite provided by the present invention and its preparation method.

[0050] S11, 60 parts by weight of bisphenol A epoxy resin, 20 parts by weight of N,N,N',N'-tetraepoxypropyl-4,4'-diaminodiphenylmethane and 20 parts by weight of 3 , 4-epoxycyclohexylmethyl 3,4-epoxycyclohexyl carboxylate was heated to 50°C, stirred and mixed under vacuum for 40 minutes to obtain component A; 30 parts by weight of phthalic anhydride, 10 parts by weight of Methyl tetrahydrophthalic anhydride, 60 parts by weight of methyl hexahydrophthalic anhydride and 0.1 part by weight of benzyltriethylammonium chloride were heated to 50°C, stirred and mixed under vacuum for 30 minutes to obtain component B;

[0051] S12. Stir component A with the rotational speed controlled at 800r / min, add component B while stirring, continue stirring and mixing for 40 minutes after component B is added, and obtain an insulating resin composite material...

Embodiment 2

[0053] This embodiment is used to illustrate the insulating resin composite provided by the present invention and its preparation method.

[0054] S11, 90 parts by weight of bisphenol A epoxy resin, 5 parts by weight of N,N,N',N'-tetraepoxypropyl-4,4'-diaminodiphenylmethane and 5 parts by weight of 3 , 4-epoxycyclohexylmethyl 3,4-epoxycyclohexyl carboxylate was heated to 80°C, stirred and mixed under vacuum for 40min to obtain component A; 10 parts by weight of phthalic anhydride, 10 parts by weight of Methyltetrahydrophthalic anhydride, 80 parts by weight of methylhexahydrophthalic anhydride and 0.5 parts by weight of benzyltriethylammonium chloride were heated to 80°C, stirred and mixed under vacuum for 30 minutes to obtain component B;

[0055] S12. Stir component A with the rotating speed controlled at 800r / min, add component B while stirring, continue stirring and mixing for 40 minutes after component B is added, and obtain an insulating resin compound, denoted as JF-2, i...

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Abstract

The invention belongs to the field of high-voltage insulating sleeves, and relates to an insulating resin composite material, a high-voltage insulating sleeve and a preparation method and application of the high-voltage insulating sleeve. The insulating resin composite material is composed of a component A, a component B and an optional component C. The component A is composed of bisphenol A epoxy resin, N,N,N',N'-tetraepoxypropyl-4,4'-diaminodiphenylmethane and 3,4-epoxy cyclohexyl methyl 3,4-epoxy cyclohexyl formate according to the mass ratio of (3-1000):(0.5-2): 1; the component B is composed of phthalic anhydride, methyl tetrahydrophthalic anhydride, methyl hexahydrophthalic anhydride and benzyltriethylammonium chloride according to a mass ratio of (0.1-300):(0.1-300):(50-1000):1; and the component C is silica powder. The high-voltage insulating sleeve prepared from the insulating resin composite material provided by the invention is low in dielectric loss and high in mechanical strength at the temperature of 130 DEG C or below, and has great industrial application prospects.

Description

technical field [0001] The invention belongs to the field of high-voltage insulating bushings, and in particular relates to an insulating resin composite material, a high-voltage insulating bushing and a preparation method and application thereof. Background technique [0002] High-voltage insulating bushing refers to a device that allows one or more conductors to pass through partitions such as walls or boxes for insulation and support. It is an important device for power systems. High-voltage insulating bushings are mainly used for ground insulation of incoming and outgoing lines of power equipment such as transformers, reactors, and circuit breakers, and high-voltage circuits passing through walls. The high-voltage insulating bushing usually includes a conductive post and an insulating layer covering the surface of the conductive post, wherein the conductive post is usually a metal cylinder, and the insulating layer is usually a composite layer of insulating resin and fib...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08K3/36H01B17/58H01B19/00
CPCC08L63/00H01B17/583H01B19/00C08L2205/025C08L2205/03C08L2203/18C08K3/36
Inventor 叶锦春
Owner 厦门市宜帆达新材料有限公司
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