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Preparation method of light-resistant and waterproof water-based flame retardant polyurethane coating and adhesive

A polyurethane coating and water-repellent technology, applied in polyurea/polyurethane coatings, polyurea/polyurethane adhesives, adhesives, etc., to achieve high efficiency, improve light resistance efficiency, and reduce toxicity problems

Inactive Publication Date: 2014-12-10
慧融高科新型材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The light resistance of polyurethane is often improved by adding UV absorbers and antioxidants, but the traditional synthetic antioxidants include tert-butyl hydroxyanisole, tert-butyl hydrogen peroxide Hydroquinone, tert-butyl hydroquinone, etc. have great toxic side effects and carcinogenicity, so it is necessary to find efficient, environmentally friendly, and light-resistant technologies

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0025] (1) Preparation of fullerene catalyst: Weigh 40mg of fullerene into a 250ml three-neck flask, add 20g of triethanolamine and 12g of ethanol, stir and react in an oil bath at 70°C under nitrogen protection for 8h, evaporate excess triethanolamine and Ethanol, the obtained brown viscous substance was shaken and dissolved with 10ml of distilled water, then 50ml of acetone was added, a large amount of brown flocculent precipitates were precipitated, centrifuged, the precipitate was washed twice with acetone, and vacuum-dried to obtain 140mg of brown powder fullerene triethanolamine Derivatives: Dissolve the above-mentioned 140mg fullerene triethanolamine derivative in 20ml distilled water, pour into 30ml aqueous solution in which 200mg 4-amino-2,6-dibromophenoltin chloride hydrochloride is dissolved, heat to 90°C, A tan precipitate was produced, after 30 minutes of heat preservation, centrifuged while hot, the solid was washed 4 times with distilled water, and dried in vacu...

example 2

[0030] (1) Preparation of fullerene catalyst: Weigh 40mg of fullerene into a 250ml three-neck flask, add 20g of triethanolamine and 12g of ethanol, stir and react in an oil bath at 70°C under nitrogen protection for 8h, evaporate excess triethanolamine and Ethanol, the obtained brown viscous substance was shaken and dissolved with 10ml of distilled water, then 50ml of acetone was added, a large amount of brown flocculent precipitates were precipitated, centrifuged, the precipitate was washed twice with acetone, and vacuum-dried to obtain 140mg of brown powder fullerene triethanolamine Derivatives: Dissolve the above-mentioned 140mg fullerene triethanolamine derivative in 20ml distilled water, pour into 30ml aqueous solution in which 200mg of 4-amino-2,6-dibromophenol tin chloride hydrochloride is dissolved, heat to 90°C, A tan precipitate was produced, after 30 minutes of heat preservation, centrifuged while hot, the solid was washed 4 times with distilled water, and dried in v...

example 3

[0035] (1) Preparation of fullerene catalyst: Weigh 40mg of fullerene into a 250ml three-neck flask, add 20g of triethanolamine and 12g of ethanol, stir and react in an oil bath at 70°C under nitrogen protection for 8h, evaporate excess triethanolamine and Ethanol, the obtained brown viscous substance was shaken and dissolved with 10ml of distilled water, then 50ml of acetone was added, a large amount of brown flocculent precipitates were precipitated, centrifuged, the precipitate was washed twice with acetone, and vacuum-dried to obtain 140mg of brown powder fullerene triethanolamine Derivatives: Dissolve the above-mentioned 140mg fullerene triethanolamine derivative in 20ml distilled water, pour into 30ml aqueous solution in which 200mg of 4-amino-2,6-dibromophenol tin chloride hydrochloride is dissolved, heat to 90°C, A tan precipitate was produced, after 30 minutes of heat preservation, centrifuged while hot, the solid was washed 4 times with distilled water, and dried in v...

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Abstract

The invention discloses a preparation method of light-resistant and waterproof water-based flame retardant polyurethane coating and adhesive. The preparation method of the light-resistant and waterproof water-based flame retardant polyurethane coating and adhesive comprises the following steps: mixing polytetrahydrofuran glycol with isophorone diisocyanate in the presence of a fullerene catalyst, reacting at the temperature of 60-85 DEG C for 1-2 hours, adding coumaphos and propantheline bromide, and reacting at the temperature of 70 DEG C for 3 hours, so that polyurethane prepolymer A is obtained; adding a chain extender, butanone and riboflavin sodium phosphate into the polyurethane prepolymer A, reacting at the temperature of 60-85 DEG C for 2.5-3.5 hours, adding a flame retardant, reacting at the temperature of 75-85 DEG C for 1-2 hours, then adding 1,4-dihydroxy anthraquinone, polyacrylamide and a tackifying agent, reacting at the temperature of 75 DEG C for 1-2 hours, then adding triethylamine and carrying out neutralization reaction for 30-50 minutes, adding water and emulsifying for 30 minutes, so that the light-resistant and waterproof water-based flame retardant polyurethane coating and adhesive are obtained. The prepared light-resistant and waterproof water-based flame retardant polyurethane coating has triple performance of flame retardance, light resistance and water resistance; meanwhile, polyurethane is environment-friendly and low in cost, so that the prepared light-resistant and waterproof water-based flame retardant polyurethane coating can be widely applied to surfaces of a wall body, furniture and metalware; the prepared light-resistant and waterproof water-based flame retardant polyurethane adhesive can be taken as a binder for plastic, glass, paper, textiles and leather.

Description

[0001] Technical Field The present invention relates to a preparation method of flame-retardant coatings and adhesives, in particular to a preparation method of light-resistant and waterproof water-based flame-retardant polyurethane coatings and adhesives. Background technique [0002] Polyurethane is mainly used in leather finishing, textile printing and dyeing, papermaking, architectural coatings, adhesives, etc. The coatings and paints sprayed on the surface of internal and external walls, furniture, and metal appliances are in direct or indirect contact with humans all the time. , Harmful coatings have also threatened people's health at all times. Because the field of use is often exposed to sunlight, because the sun’s rays contain a large amount of ultraviolet light harmful to colored objects, its wavelength is about 290-460nm, these harmful ultraviolet light changes the color of the paint through chemical oxidation and reduction. [0003] The main application fields of w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D7/12C09J175/08C09J11/06C09J11/08C08G18/73C08G18/66C08G18/48C08G18/16C08G18/10B01J31/26
Inventor 段小宁罗声王亚茜宋丽夏雪影
Owner 慧融高科新型材料科技有限公司
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