Solidifiable resin composition in single constituent

A resin composition, one-component technology, applied in the field of one-component curable resin composition, can solve the problems of unsatisfactory requirements, low thermal strength, large linear shrinkage, etc., and achieve low shrinkage of cured products, High storage stability and high mechanical strength
CN1796429AInactive Publication Date: 2006-07-05上海电动工具研究所(集团)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
上海电动工具研究所(集团)有限公司
Publication Date
2006-07-05
Estimated Expiration
Not applicable · inactive patent
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Abstract

This invention relates to a single-component curable resin composite, which is uniquely made of following raw materials: 40~60% unsaturated polyesters, 30~50% active cross-linked monomers, 9~30% low-shrinkage additives and 0.5~3% peroxide initiators, and its preparation method, which comprises following steps: raw materials are taken at the fixed ratio; the unsaturated polyesters is heated in a vessel with the protection of nitrogen; active cross-linked monomers and low-shrinkage additives are added while the systems are stirred and cooled to room temperature; then peroxide initiators are added and the mixture is thoroughly stirred to homogeneity so as to produce single-component curable resin composite. This invention has the advantages of low initial viscosity, high curing speed, high preservation stability, low curing shrinkage, good toughness, high mechanical strength and considerable heat resistance up to H-class. It is applicable in insulation treatment of motors and electric wire coils.
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Description

technical field

[0001] The invention relates to a single-component curable resin composition, which can be widely used in the insulation treatment of electric tools, series-excited motor rotors for automobiles and motorcycles, and electrical coils, and belongs to the technical field of electrical insulation treatment. Background technique

[0002] Ordinary unsaturated polyester resins used in thermal curing systems, due to the volatilization of styrene and the effect of oxygen inhibition, the surface layer cannot be fully cross-linked, resulting in surface stickiness. At the same time, due to the large linear shrinkage of the heat-cured unsaturated polyester system, which is 6% to 8%, its application in the field of electrical processing is limited.

[0003] The two-component epoxy resin system is often used in electrical insulation treatment, but it is inconvenient to prepare insulating paint, and the pot life is also short. The thermal strength of the cured epoxy system is...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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