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Preparation method of phosphatized sol flame retardant polyurethane powder coating

A polyurethane powder and sol technology, which is applied in powder coatings, fireproof coatings, coatings, etc., can solve the problems of poor surface stability, poor compatibility, and poor flame retardancy of coating films, and achieve good safety and environmental protection. Capacitance, the effect of improving stability and strength

Inactive Publication Date: 2017-09-01
靖江励创信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a phosphating sol flame retardant polyurethane for the poor flame retardant properties of polyurethane powder coatings in the prior art, poor compatibility of inorganic flame retardant additives and polyurethane, resulting in poor stability of the coating film surface Preparation method of powder coating

Method used

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  • Preparation method of phosphatized sol flame retardant polyurethane powder coating

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Embodiment 1

[0022] A preparation method of phosphating sol flame-retardant polyurethane powder coating, comprising the following steps:

[0023] (1) Mix 0.3 parts by weight of urotropine and 16 parts by weight of zirconium oxychloride, add to deionized water 80 times the weight of the mixture, raise the temperature to 50°C, heat and stir for 20 minutes to obtain water dispersion liquid;

[0024] (2) Take 5 parts by weight of zinc acetate and 6 parts by weight of stannous chloride and mix them, add them to deionized water 200 times the weight of the mixture, stir evenly, send them into a constant temperature water bath at 85°C, add the above water to disperse solution, keep stirring for 100 minutes, add 1 mol / l ammonia water dropwise, adjust the pH to 12, keep stirring for 6 hours, discharge, centrifuge, wash the precipitate with water, and dry at 50°C for 1 hour in vacuum to obtain a hydroxyl filler;

[0025] (3) get the calcium ricinoleate of 0.7 weight part, join in the ethanol solutio...

Embodiment 2

[0034] A preparation method of phosphating sol flame-retardant polyurethane powder coating, comprising the following steps:

[0035] (1) Mix 0.5 parts by weight of urotropine and 20 parts by weight of zirconium oxychloride, add to deionized water 100 times the weight of the mixture, raise the temperature to 68 ° C, keep stirring for 20 minutes, and obtain water dispersion liquid;

[0036] (2) Take 7 parts by weight of zinc acetate and 8 parts by weight of stannous chloride and mix them, add them to deionized water 200 times the weight of the mixture, stir evenly, send them into a constant temperature water bath at 85°C, add the above water to disperse solution, keep stirring for 100 minutes, add 2 mol / l ammonia water dropwise, adjust the pH to 12, keep stirring for 6 hours, discharge, centrifuge, wash the precipitate with water, and dry at 50°C for 2 hours in a vacuum to obtain a hydroxyl filler;

[0037] (3) get the calcium ricinoleate of 2 weight parts, join in the ethanol ...

Embodiment 3

[0046] A preparation method of phosphating sol flame-retardant polyurethane powder coating, comprising the following steps:

[0047] (1) Mix 0.3 parts by weight of urotropine and 16 parts by weight of zirconium oxychloride, add to deionized water 80 times the weight of the mixture, raise the temperature to 50°C, keep stirring for 10 minutes, and obtain water dispersion liquid;

[0048] (2) Take 5 parts by weight of zinc acetate and 6 parts by weight of stannous chloride and mix them, add them to deionized water 170 times the weight of the mixture, stir evenly, send them into a constant temperature water bath at 80°C, add the above water to disperse solution, kept stirring for 70 minutes, added dropwise 1mol / l ammonia water, adjusted the pH to 11, kept stirring for 5 hours, discharged, centrifuged, washed the precipitate with water, and dried at 40°C for 1 hour in vacuum to obtain a hydroxyl filler;

[0049] (3) get the calcium ricinoleate of 0.7 weight part, join in its weigh...

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Abstract

The invention discloses a preparation method of phosphatized sol flame retardant polyurethane powder coating. According to the preparation method, non-combustible gas can be released when added phosphatized sol is combusted, so that a gas-phase barrier effect is realized; meanwhile, zinc stannate can also be used for promoting a finished product to form a stable carbon layer, so that a cooperated fireproof effect is realized; after the phosphatized sol is subjected to organic treatment, the compatibility of the phosphatized sol and polyurethane can be effectively improved, the agglomeration is reduced and the stability strength of a finished-product coated film is improved; the phosphatized sol flame retardant polyurethane powder coating does not contain a toxic plasticizer and has good safety and environmental friendliness and excellent comprehensive performance.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a preparation method of a phosphating sol flame-retardant polyurethane powder coating. Background technique [0002] Polyurethane powder coatings are developing into the mainstream of powder coatings, accounting for an increasing proportion of powder coatings. Due to the excellent weather resistance, excellent physical and mechanical properties and corrosion resistance of polyurethane powder coatings, the coating film is bright and plump, durable Abrasion resistance, scratch resistance, solvent resistance, good leveling and strong adhesion; [0003] Powder coatings are environmentally friendly coatings. Powder coatings and coatings have the advantages of excellent coating performance, simple process, high thickness at one coating, energy and resource saving, environmental pollution reduction, easy automation, and powder recyclability. As soon as it appears, it can attract wid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D5/03C09D5/18C08G18/48C08G18/10C08G18/32
CPCC09D175/08C08G18/10C08G18/4825C08G2150/20C08K3/24C08K5/521C09D5/033C09D5/18C08G18/3206
Inventor 黄滢芝
Owner 靖江励创信息科技有限公司
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