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Resin emulsion paint special for epoxy pnenolic aldehyde stalloy and preparation thereof

A technology of epoxy phenolic silicon steel and epoxy resin, applied in the field of insulating resin paint, can solve the problems of poor adhesion of silicon steel sheet coating, poor adhesion of coating, and high temperature of punching and painting, and achieves good The effect of high electrical properties, high heat resistance grade and high insulation resistivity

Active Publication Date: 2008-12-03
JINTAN HUARONG INSULATING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] ②Although 5364 alkyd silicon steel sheet paint has low painting temperature and low energy consumption, it also has other disadvantages of phenolic silicon steel sheet paint, that is, the edge of the laminate is thickened, the insulation resistivity is low, and it adheres to the silicon steel sheet coating. Poor focus
[0005] ③Although 947S silicon organic paint belongs to H-level insulation (180°C), the temperature for punching and painting is high, and the adhesion to the silicon steel paint coating is extremely poor.
[0007] The electrical properties, heat resistance, adhesion to silicon steel sheet coating, moisture resistance, oil resistance, chemical corrosion resistance, mechanical properties and good workmanship of these paints are difficult to meet the requirements of B and F class large and medium-sized AC and DC paints. Technical requirements for silicon steel sheets and punching coatings of motors, large turbogenerators, hydrogenerators, transformers and special motors. The iron core of the generator is easy to short circuit, and the loss of the iron core is large, that is, the eddy current loss.

Method used

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  • Resin emulsion paint special for epoxy pnenolic aldehyde stalloy and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0041] The epoxy phenolic silicon steel sheet special resin paint is made up of polymer 609 epoxy resin, 214 phenolic resin, Z-11 epoxy toughening agent, L-12 leveling agent and thinner, and the thinner is toluene or Ethanol or ethyl acetate, the weight percent of each component is:

[0042] 98~102 parts of polymer 609 epoxy resin;

[0043] 18 parts of 214 phenolic resin;

[0044] 5 parts of Z-11 epoxy toughening agent;

[0045] 7.8 parts of L-12 leveling agent;

[0046] Diluent 2~5 parts.

Embodiment 1

[0047] Embodiment 1: the special resin paint for epoxy phenolic silicon steel sheet is made up of polymer 609 epoxy resin, 214 phenolic resin, Z-11 epoxy toughening agent, L-12 leveling agent and toluene, each component The ratio of parts by weight is:

[0048] 100 parts of polymer 609 epoxy resin;

[0049] 18 parts of 214 phenolic resin;

[0050] 5 parts of Z-11 epoxy toughening agent;

[0051] 7.8 parts of L-12 leveling agent;

[0052] 3 parts of toluene.

[0053] Its preparation method is as follows:

[0054] ①Heat the reaction kettle to 120±10°C, add 100 kg of polymer 609 epoxy resin and 3 kg of diluent, and stir for 4 hours;

[0055] ② Add 5 kg of Z-11 epoxy toughening agent; stir for 4 hours;

[0056] ③ Add 18 kg of 214 phenolic resin, react for 4 hours, and drop to room temperature;

[0057] 4. Add 7.8 kilograms of L-12 leveling agent and stir for 1 hour to get the object of the present invention;

[0058] ⑤ Out of the kettle and into the package, after passing ...

Embodiment 2

[0059] Embodiment 2: the special resin paint for epoxy phenolic silicon steel sheet is made up of polymer 609 epoxy resin, 214 phenolic resin, Z-11 epoxy toughening agent, L-12 leveling agent and ethanol, each component The ratio of parts by weight is:

[0060] 98 parts of polymer 609 epoxy resin;

[0061] 18 parts of 214 phenolic resin;

[0062] 5 parts of Z-11 epoxy toughening agent;

[0063] 7.8 parts of L-12 leveling agent;

[0064] 2 parts ethanol.

[0065] The preparation steps are the same as in Example 1, except that the proportions of the components are different, and ethanol is selected as the diluent.

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Abstract

The invention discloses resin paint special for epoxy phenol-formaldehyde silicon steel sheet and the preparation method thereof. The resin paint comprises, by weight, polymer 609 epoxy resin 98 to 102 parts, 214 phenol-formaldehyde resin 18 parts, Z-11 epoxy toughener 5 parts, L-12 leveling agent 7.8 parts, and diluting agent 2 to 5 parts. The diluting agent is toluene or ethanol or ethyl acetate. The resin paint has the advantage of excellent performance in resisting heat, moisture, oil, and chemical corrosion, and can be applied at normal temperature and dried rapidly. The resin has good uniformity and arbitrarily adjustable viscosity, and can be uniformly mixed with inorganic filler to achieve good manufacturability. The resin paint has good adhesion with the surface coating of silicon steel sheet, and the coating has good mechanical strength, high heat resistant grade and high insulation resistance coefficient, and can be used for F-grade (155 DEG C) electric products to achieve long storage life.

Description

Technical field: [0001] The invention relates to an insulating resin varnish, in particular to an impregnated insulating resin varnish for silicon steel sheets in motors and generators. Background technique: [0002] At present, the silicon steel sheet paints used in electrical products such as motors and generators mainly include B-grade 1611 phenolic silicon steel sheet paint, 5364 alkyd silicon steel sheet paint, H-grade 947S silicon organic paint and polyester silicon steel sheet paint. The disadvantages are as follows: [0003] ①1611 phenolic silicon steel sheet paint belongs to Class B insulation (130°C), the temperature for punching and painting is as high as 550°C, which consumes a lot of energy, and the edge of the laminate is thickened, the insulation resistivity is low, and the adhesion to the silicon steel sheet coating is poor. Especially noticeable in hot and humid conditions. [0004] ②Although 5364 alkyd silicon steel sheet paint has low painting temperatur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/25B05D7/14C09D161/06
Inventor 胡溢群陆帮荣朱月珍陆小粽
Owner JINTAN HUARONG INSULATING MATERIAL CO LTD
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