Low-volatility high-performance environment-friendly insulating resin and preparation method thereof

An insulating resin and environmentally friendly technology, which is applied in the field of low-volatile high-performance environmentally-friendly insulating resin and its preparation, can solve the problems of low volatile content and high volatile content of insulating impregnated resin, so as to reduce volatilization, reduce VOC content, and improve The effect of reaction rate

Active Publication Date: 2022-03-29
浙江祺阳新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of high volatile content of existing insulating impregnated resins, the purpose of the present invention is to provide a low-volatility, high-performance, environmentally friendly insulating resin and its preparation method. By adjusting the proportion of insulating resin raw materials and the preparation process, the obtained Low volatile content of the product while maintaining excellent performance

Method used

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  • Low-volatility high-performance environment-friendly insulating resin and preparation method thereof
  • Low-volatility high-performance environment-friendly insulating resin and preparation method thereof
  • Low-volatility high-performance environment-friendly insulating resin and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] The composition of the raw materials for the preparation of the insulating resin (0840-D) in this example is as follows (parts by weight):

[0031]

[0032] The preparation process of the insulating resin (0840-D) is:

[0033] (1) After feeding nitrogen in the reaction vessel, drop into pyromellitic anhydride, maleic anhydride, methylpropanediol and Cyclo in proportion successively;

[0034] (2) Heating the mixed material after feeding in the reaction vessel in step (1), heating to 160-175°C to start the esterification reaction, and then gradually warming up to 200-210°C for heat preservation reaction;

[0035] (3) During the heat preservation reaction in step (2), when the acid value reaches 30 mgKOH / g, cool down to below 130° C., then add methyl methacrylate and accelerator (cobalt acetylacetonate (Ⅲ)) to the reaction vessel and Mix evenly and obtain component A after filling;

[0036] (4) Mix component A and component B (dicumyl peroxide DCP) in a weight ratio o...

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PUM

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Abstract

The invention discloses a low-volatility, high-performance, environment-friendly insulating resin and a preparation method thereof, belonging to the technical field of insulating resins. The insulating resin is made by mixing and cross-linking the components A and B; in the component A, the low viscosity is synthesized by mixing pyromellitic anhydride, maleic anhydride, methyl propylene glycol and Saike in proportion. For unsaturated polyester, an appropriate amount of methyl methacrylate is added to replace the conventional diluent styrene, which reduces the volatilization of the product of the present invention while ensuring other properties of the product. The accelerator and the initiator work together to promote the reaction rate, and the initiator triggers the crosslinking and curing of the unsaturated polyester under certain temperature conditions. The insulation resin of the invention reduces volatilization and VOC content under the condition that the gel time, cohesive force and electrical properties are all equal to those of the traditional unsaturated polyester dripping paint.

Description

technical field [0001] The invention relates to the technical field of insulating resins, in particular to a low-volatility, high-performance, environment-friendly insulating resin and a preparation method thereof. Background technique [0002] Insulating impregnating resin is a kind of insulating material. Since the mid-1980s, modified epoxy impregnating resin and polyesterimide impregnating resin with styrene and acrylic ester as diluent have been introduced successively in China. The application of these insulating impregnating resins has made great contributions to the improvement of the insulation manufacturing process of large and medium-sized motors in my country. However, with the rapid development of high-voltage large motors and variable-frequency motors in China, the requirements for insulating materials are gradually increasing, not only requiring excellent comprehensive performance such as electrical and mechanical properties, but also continuously increasing re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/01C08F220/14C08G63/685
CPCC08F283/01C08G63/6858C08F220/14
Inventor 葛民
Owner 浙江祺阳新材料有限公司
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