Normal temperature dipping-type epoxy anhydride heat-resistant resin as well as preparation method and application thereof

A technology of epoxy anhydride and heat-resistant resin, used in epoxy resin coatings, plastic/resin/wax insulators, coil manufacturing, etc., can solve problems such as poor insulation performance of products, achieve low VOC content, reduce production costs, construction handy effect

Active Publication Date: 2012-08-15
SUZHOU JUFENG ELECTRICAL INSULATION SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a normal temperature impregnated epoxy anhydride heat-resistant resin, which solves the problem of vacuum pressure impregnated impregnated resin containing active diluents such as styrene, which requires high temperature and long-term curing and product insulation performance. Inferior defects

Method used

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  • Normal temperature dipping-type epoxy anhydride heat-resistant resin as well as preparation method and application thereof
  • Normal temperature dipping-type epoxy anhydride heat-resistant resin as well as preparation method and application thereof
  • Normal temperature dipping-type epoxy anhydride heat-resistant resin as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1 Preparation of normal temperature impregnated epoxy anhydride heat-resistant resin

[0036] The composition of normal temperature impregnated epoxy anhydride heat-resistant resin is as follows:

[0037]

[0038] Among them, component A is prepared by the following method: add 90 kg of JF9955A molecularly distilled bisphenol A epoxy resin and 10 kg of neopentyl glycol diglycidyl ether into a 40°C reactor for stirring, vacuum dehumidify for 0.5h, and stir the materials Uniform, filtered, airtight packaging is the first component.

[0039] Component B is prepared from methyl hexahydrophthalic anhydride by the following method: Add 110 kg of methyl hexahydrophthalic anhydride into the reaction kettle and stir evenly, vacuum dehumidify for 0.5h, filter, and seal The packaging is the B component.

[0040] The transportation and storage method of components A and B, this method is suitable for vacuum pressure impregnation heat-resistant impregnation resin at roo...

Embodiment 2

[0042] Example 2 Preparation of normal temperature impregnated epoxy anhydride heat-resistant resin

[0043]

[0044] Among them, component A is prepared by the following method: 80 kg of JF9955A molecularly distilled bisphenol A epoxy resin and 20 kg of neopentyl glycol diglycidyl ether are added to a 50°C reactor for stirring, vacuum dehumidification for 0.5h, and the materials are stirred Uniform, filtered, airtight packaging is the first component.

[0045] Component B is prepared from methyl hexahydrophthalic anhydride by the following method: Add 90 kg of methyl hexahydrophthalic anhydride into the reaction kettle and stir evenly, vacuum dehumidify for 0.5h, filter, and seal The packaging is the B component.

[0046] Other preparation methods are similar to Example 1.

Embodiment 3

[0047] Example 3 Preparation of normal temperature impregnated epoxy anhydride heat-resistant resin

[0048]

[0049] Among them, component A is prepared by the following method: 85 kg of JF9955A molecularly distilled bisphenol A epoxy resin and 15 kg of cyclohexanediol diglycidyl ether are added to a 50°C reactor for stirring, vacuum dehumidification for 0.5h, and the materials are stirred Uniform, filtered, airtight packaging is the first component.

[0050] Component B is prepared from methyl hexahydrophthalic anhydride by the following method: add 120 kg of methyl nadic anhydride into the reaction kettle and stir evenly, vacuum dehumidify for 0.5h, filter, and seal the package to obtain B component. components.

[0051] Other preparation methods are similar to Example 1.

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Abstract

The invention discloses a normal temperature dipping-type epoxy anhydride heat-resistant resin which is characterized by comprising a component A and a component B according to the weight ratio of 1: (0.8 to 1.2), wherein the component B is liquid anhydride; the component A comprises the following ingredients in percent by weight: 60-90 percent of bisphenol A type epoxy resin and 40 to 10 percentof multi-functional low-viscosity epoxy reactive diluent; and the multi-functional low-viscosity epoxy reactive diluent is selected from one or a mixture of more than two of neopentyl glycol diglycidyl ether, cyclohexanediol diglycidyl ether, ethylene glycol diglycidyl ether, glycerol diglycidyl ether, trimethylolpropane diglycidyl ether and triglycidyl isocyanurate. The resin does not contain volatile styrene reactive diluent, and the solidified resin has good heat-resistance, high mechanical strength and low dielectric loss factor, can make the coil insulation thickness be thin and is beneficial to reducing the motor temperature rise, prolonging the motor service life and reducing the motor size.

Description

technical field [0001] The invention belongs to the technical field of vacuum pressure impregnation, and in particular relates to a normal-temperature impregnation type epoxy anhydride heat-resistant resin and its preparation method and application. Background technique [0002] The varnish-dipping insulation treatment process of motor and transformer windings ranges from immersion (ordinary immersion) to multiple immersion, and then to dripping paint, rolling immersion and vacuum varnish, and the integration of vacuum pressure immersion and drying forms a series of various mechanized continuous processes. The operation is an impregnation process automatically controlled by modern computer technology and PLC technology. The vacuum pressure impregnation (Vacuum Pressure Impregnation, VPI) process is to pre-dry the workpiece to remove moisture and then cool it, place it in a vacuum environment, remove the air and volatiles inside the white blank coil, rely on the gravity of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/42C08G59/20C08L63/02C09D163/02H01B3/40H01F41/12H02K15/12
Inventor 夏宇李翠翠朱颐陆春陶纯初
Owner SUZHOU JUFENG ELECTRICAL INSULATION SYST
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