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Organophosphorus modified waterborne polyurethane flame retardant coating agent and preparation method thereof

A technology of water-based polyurethane and flame-retardant coating, which is applied in fiber types, textiles and papermaking, fiber treatment, etc. It can solve the problems of impermeability to washing, easy migration, and large amount of flame retardants, so as to achieve good flame retardant effect and high The effect of applying value

Active Publication Date: 2015-04-29
浙江技立新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although its combustion performance can reach the national B1 level, its flame retardant is coated on the polyester fabric in the form of a compound with water-based polyurethane dispersion, which is not resistant to washing, a large amount of flame retardant, and easy to migrate. shortcoming

Method used

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  • Organophosphorus modified waterborne polyurethane flame retardant coating agent and preparation method thereof
  • Organophosphorus modified waterborne polyurethane flame retardant coating agent and preparation method thereof
  • Organophosphorus modified waterborne polyurethane flame retardant coating agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The formula of organophosphorus modified waterborne polyurethane flame retardant coating agent is as shown in table 1:

[0025] Table 1 Example 1 The formulation of the environmentally friendly halogen-free organophosphorus flame-retardant modified water-based polyurethane fabric coating agent

[0026] raw material Dosage / g Isophorone diisocyanate 22.30 Polyether polyol (hydroxyl value 112mgKOH / g) 35.10 Organophosphorus polyols 6.19 Dimethylolpropionic acid 2.87 Triethylamine 2.05

[0027] [0027] Under nitrogen protection atmosphere and stirring conditions, the 22.30g isophorone diisocyanate, 35.10g polyether polyols with a hydroxyl value of 112mgKOH / g, and 6.19g organophosphorus polyols were placed in a flask, and preheated at 70°C. Poly 0.5h.

[0028] The structural formula of the organophosphorus polyol is:

[0029]

[0030] Add 2.87 g of the carboxylic acid-containing chain extender dimethylol propionic acid into t...

Embodiment 2

[0033] The formula of organophosphorus modified waterborne polyurethane flame retardant coating agent is as shown in table 2:

[0034] Table 2 Formula of Example 2 Environment-friendly Halogen-free Organophosphorus Flame Retardant Modified Waterborne Polyurethane Fabric Coating Agent

[0035] raw material Dosage / g Hexamethylene diisocyanate 25.34 Polyether polyol (hydroxyl value 95mgKOH / g) 32.70 Organophosphorus polyols 7.26 Sodium 1,4-butanediol-2-sulfonate 3.45 tributylamine 2.87

[0036] Under nitrogen protection atmosphere and stirring conditions, the 25.34g hexamethylene diisocyanate, 32.70g polyether polyol with a hydroxyl value of 95mgKOH / g, and 7.26g organophosphorus polyol were placed in a flask and preheated at 80°C. Poly 1h.

[0037] The structural formula of the organophosphorus polyol is:

[0038]

[0039] Add 3.45 g of the sulfonate-containing chain extender 1,4-butanediol-2-sodium sulfonate into the flask, and ex...

Embodiment 3

[0043] The formula of organophosphorus modified waterborne polyurethane flame retardant coating agent is as shown in table 3:

[0044] Table 3 Example 3 The formula of environment-friendly halogen-free organophosphorus flame retardant modified waterborne polyurethane fabric coating agent

[0045] raw material Dosage / g Toluene diisocyanate 27.12 Polyether polyol (hydroxyl value 112mgKOH / g) 33.48 Organophosphorus polyols 5.71 N-Methyldiethanolamine 3.54 ammonia 3.02

[0046] Under nitrogen protection atmosphere and stirring conditions, the 27.12g toluene diisocyanate, 33.48g polyether polyol with a hydroxyl value of 112mgKOH / g, and 5.71g organophosphorus polyol were placed in a flask, and prepolymerized at 60°C for 0.5h .

[0047] The structural formula of the organophosphorus polyol is:

[0048]

[0049] Add 3.54 g of the cationic chain extender N-methyldiethanolamine into the flask, and extend the chain at 60° C. for 2.5 h. Th...

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Abstract

The invention relates to an organophosphorus modified waterborne polyurethane flame retardant coating agent and a preparation method thereof, and belongs to the technical field of light industry. The organophosphorus modified waterborne polyurethane flame retardant coating agent is characterized by being prepared from the following steps: using organophosphorus polyatomic alcohol to be in reaction with diisocyanate instead of non-flame-retardant polyatomic alcohol; using a hydrophilic chain extender to perform chain extension on the material obtained after reaction; neutralizing the obtained mixture by a salt-forming agent, wherein the non-flame-retardant polyatomic alcohol is a mixture of any one kind or any kinds of polyester polyol or polyether polyol. According to the organophosphorus modified waterborne polyurethane flame retardant coating agent and the preparation method thereof, two ends of the organophosphorus polyatomic alcohol contain hydroxy of activated hydrogen, so that the organophosphorus polyatomic alcohol can partially replace the polyatomic alcohol to be reacted with isocyanate so as to generate carbamic acid ester; an organophosphorus flame retardant intermediate is led in the macromolecular chain of the polyurethane, so that a flame retardant macromolecule having the performances of environmental protection, no halogen and low toxicity is formed.

Description

technical field [0001] The invention relates to an organophosphorus modified waterborne polyurethane flame retardant coating agent and a preparation method thereof, belonging to the technical field of light industry. Background technique [0002] Waterborne polyurethane is mainly used in fabrics, leather, building materials, etc. These materials are all flammable materials, and generally require flame retardant treatment. Water-based polyurethane uses water as the medium, which has the advantages of non-toxicity, environmental protection, safe production and application, and low cost. It is beneficial to the production of colored coating products, and the coating has good hydrophilicity. The patent application number is 200510122057.X, the flame retardant monomer dibromoneopentyl glycol with an amount of 15% is added to the system before polymerization, so that the generated polyurethane macromolecular chain has a flame retardant halogen atom bromine, and a product with Wat...

Claims

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Application Information

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IPC IPC(8): C08G18/66C08G18/48C08G18/32C08G18/34C08G18/12C08G18/42D06M15/579D06M101/32
CPCC08G18/12C08G18/3855C08G18/388C08G18/6666C08G18/6688C08G18/6692C08G2261/93D06M15/579D06M2101/32C08G18/348C08G18/3889C08G18/3275
Inventor 胡毅尹东旭刘今强沈桢陈艳丽
Owner 浙江技立新材料股份有限公司
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