Technology research and development of organic and inorganic composite silicon steel plate insulating paint

A technology for compounding silicon steel and insulating coatings, applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of not meeting the high-temperature application performance of silicon steel sheets, personal hazards, and high toxicity

Inactive Publication Date: 2017-04-26
天津市硅酸盐研究所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Silicon steel sheet coating not only requires good insulation ability, but also requires that the coating does not fall off under high temperature conditions. Organic coatings cannot meet the high temperature application performance of silicon steel sheets. Pure inorganic coatings have a high

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  • Technology research and development of organic and inorganic composite silicon steel plate insulating paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1, preparation of inorganic mixed solution: add 20kg of water, 1kg of defoamer, 1kg of water-based dispersant, 0.5kg of wetting agent, 0.5kg of adhesion promoter in the reaction kettle and carry out high-speed shearing and stirring at the same time Add 5kg of mica powder with a particle size of about 6um, 4.5kg of titanium dioxide, 0.5kg of boron nitride, and 13kg of lead-free low-temperature glass powder in batches, and stir at high speed. Preparation of organic mixed solution: 2kg of water-based acrylic synthetic emulsion, 18kg of water-based silicone resin, and 1kg of coupling agent were mixed uniformly at a medium-low speed, and then gradually added to the pre-prepared inorganic mixed solution in batches, and fully stirred at a medium speed. Obtain a uniform and stable organic-inorganic composite silicon steel sheet insulation coating.

Embodiment 2

[0019] Example 2, preparation of inorganic mixed solution: add 10kg of water, 0.5kg of defoamer, 1kg of water-based dispersant, and 0.5kg of wetting agent in the reaction kettle in sequence, then carry out high-speed shearing and stirring, and add the particle size in batches at the same time 4kg of mica powder of about 6um, 1.5kg of titanium dioxide, 0.5kg of silicon nitride, 2kg of quartz fiber powder, 30kg of lead-free low-temperature glass powder, high-speed stirring, after the components are fully mixed, and finally add 20kg of alkaline silica sol. Preparation of organic mixed solution: 5kg of water-based acrylic synthetic emulsion, 15kg of water-based epoxy resin, and 10kg of silicone resin. A uniform and stable organic-inorganic composite silicon steel sheet insulation coating is obtained.

Embodiment 3

[0020] Example 3, preparation of inorganic mixed solution: add 10kg of water, 0.5kg of defoamer, 0.5kg of water-based dispersant, and 1kg of emulsifier in the reaction kettle, and then carry out high-speed shearing and stirring, and at the same time, add in batches with a particle size of 6um About 3kg of mica powder, 2kg of glass fiber, 4kg of titanium dioxide, 2kg of talcum powder, 1kg of boron nitride, 24kg of lead-free low-temperature glass powder, stir at high speed, and after the components are fully mixed, add 14kg of alkaline silica sol. Preparation of organic mixed solution: 10kg of water-based acrylic synthetic emulsion, 18kg of water-based silicone resin, and 10kg of water-based epoxy resin are uniformly mixed at medium and low speeds, and then gradually added to the pre-prepared inorganic mixed solution in batches, fully stirred and mixed at a medium speed, and finally A uniform and stable organic-inorganic composite silicon steel sheet insulation coating is obtaine...

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Abstract

The invention discloses organic and inorganic composite silicon steel plate insulating paint. The paint comprises the following components in percentages by weight: 20-70% of an organic film forming substance component, 20-60% of an inorganic high temperature binder, 5-20% of an inorganic functional filling material component, 1-8% of an auxiliary agent component, and 3-20% of water. The organic film forming substance comprises the following components according to a certain proportion: aqueous epoxy resin, an aqueous acrylic acid synthetic emulsion, one or several kinds of aqueous organic silicone resin; the inorganic binder comprises low temperature leadless glass powder and alkaline silica sol; and particle sizes of an inorganic functional filling material and a functional auxiliary agent are 6[mu]m or below. The paint guarantees film forming ability, impact resistance, water proofness and other performances of the coating in a low temperature condition, guarantees adhesive force and insulating properties of the coating in a high temperature working environment, the paint does not have chromate and mother toxic components, and the paint has usage safety and reliability.

Description

[0001] Technical field: [0002] The invention relates to the technical research and development of an organic-inorganic composite silicon steel sheet insulating coating. The coating is applied to the surface protection of silicon steel sheets in large motors and transformers. The formed coating has good insulation, punching and shearing processability, high temperature resistance, Application properties such as surface protection. [0003] Background technique: [0004] Silicon steel sheet coating not only requires good insulation ability, but also requires that the coating does not fall off under high temperature conditions. Organic coatings cannot meet the high temperature application performance of silicon steel sheets. Pure inorganic coatings have a high impact on coating technology and processing equipment. There are limitations in the application process; at present, the traditional domestic semi-inorganic coating formula contains highly toxic chromate, which causes seri...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D133/00C09D183/04C09D7/12C09D5/25C09D5/08
Inventor 张莉孙蕾赵岩孙广军
Owner 天津市硅酸盐研究所有限公司
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