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Environmental-friendly high-temperature resistant impregnated resin and applications thereof

A technology of impregnating resin and high temperature resistance, which is applied in the field of environmental protection and high temperature resistant impregnating resin, which can solve the problems of high brittleness, poor storage stability, and poor adhesion

Inactive Publication Date: 2016-10-26
DANYANG WODLE ELECTRIC MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Common VPI resins include unsaturated polyester and epoxy resins. Among them, unsaturated polyester is the most common solvent-free dipping paint. It is cheap and has moderate electrical and mechanical properties, but it has large shrinkage and stickiness. The problem of poor bonding strength; although epoxy resin can be used in medium and high pressure occasions, it has the advantages of strong bonding force, high electrical and mechanical strength, but its toughness is insufficient, brittleness is large, and there is little room for adjustment of heat resistance grade. and poor storage stability

Method used

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  • Environmental-friendly high-temperature resistant impregnated resin and applications thereof
  • Environmental-friendly high-temperature resistant impregnated resin and applications thereof
  • Environmental-friendly high-temperature resistant impregnated resin and applications thereof

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Embodiment Construction

[0045] A kind of environment-friendly high temperature resistant impregnating resin, its composition and weight percentage are as follows:

[0046]

[0047]

[0048] Wherein said bisphenol A epoxy resin is a kind of in E-42, E-44, E-51.

[0049] The reactive diluent is a low-volatility reactive diluent, which is one or more of alkyl glycidyl ether, cresyl glycidyl ether, castor oil polyglycidyl ether, and the low-volatility reactive diluent improves the viscosity of the resin. Saturation vapor pressure and flash point, and help to improve the vacuum degree of VPI impregnation.

[0050] From figure 1 It can be seen that the viscosity of the environmental-friendly high-temperature resistant impregnating resin of the present invention decreases with the increase of temperature, and the viscosity at room temperature is relatively low.

[0051] The application of an environment-friendly and high-temperature-resistant impregnating resin in the insulation treatment of VPI coi...

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Abstract

The invention relates to environmental-friendly high-temperature resistant impregnated resin and applications thereof. The impregnated resin comprises heat-resistant unsaturated polyester resin, alicyclic epoxy resin, bisphenol A epoxy resin, a curing agent, DCP, para-tert-butylcatechol and an active diluting agent. The impregnated resin can be used for impregnating insulation of F / H level medium and large high-voltage motors, wind driven generators and other refrigerant resistant motors and electric appliance windings. The impregnated resin is low-viscidity low-volatilization non-hygroscopic solvent-free resin of the 200 DEG C level. The impregnated resin is environmental friendly, safe and wide in application.

Description

technical field [0001] The invention relates to the field of electrical insulating resins, and specifically discloses an environment-friendly high-temperature resistant impregnating resin and its application. Background technique [0002] VPI resin for impregnating high-voltage motors and wind turbine coils is a hot and difficult point in the impregnation treatment of contemporary motors. Common VPI resins include unsaturated polyester and epoxy resins. Among them, unsaturated polyester is the most common solvent-free dipping paint. It is cheap and has moderate electrical and mechanical properties, but it has large shrinkage and stickiness. The problem of poor bonding strength; although epoxy resin can be used in medium and high pressure occasions, it has the advantages of strong bonding force, high electrical and mechanical strength, but its toughness is insufficient, brittleness is large, and there is little room for adjustment of heat resistance grade. And the storage st...

Claims

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Application Information

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IPC IPC(8): C08L67/06C08L63/00C08K5/14C08K5/13H02K15/12
CPCC08L67/06C08L2201/08C08L2205/025C08L2205/03H02K15/12C08L63/00C08K5/14C08K5/13Y02E10/72
Inventor 袁健黄治国余艳屏殷丽肖方敏
Owner DANYANG WODLE ELECTRIC MATERIALS CO LTD
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