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Water-soluble polyurethane flame-retardant coating and preparation method thereof

A water-soluble polyurethane and flame retardant coating technology, applied in polyurea/polyurethane coatings, antifouling/underwater coatings, anti-corrosion coatings, etc. Thickness ratio and good weather resistance

Inactive Publication Date: 2015-07-22
GUANGXI JIKUAN SOLAR ENERGY EQUIP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, there is no mature technology to prepare a kind of external thermal insulation coating with flame retardancy, light weight, high fire resistance, high weather resistance, environmental protection, non-aging, and long-term performance. Therefore, people are still using water-based coatings at present. ongoing research and testing

Method used

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  • Water-soluble polyurethane flame-retardant coating and preparation method thereof
  • Water-soluble polyurethane flame-retardant coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] First, 40 parts of polyurethane prepolymer, 1 part of N-methylolacrylamide, 2 parts of dibutyl phthalate, 0.5 parts of monoalkoxy pyrophosphate titanate coupling agent, 3 parts of talc powder with product number TL75-45-98GB, 3 parts of light calcium carbonate (micronized calcium carbonate with average particle size d=1-5μm), 0.1 part of tributyl phosphate, 0.5 part of isopropanol; mixed solvent 10 parts (mixture of lignin and ethylene glycol butyl ether plus water, the weight ratio is 3:1:10), 3 parts of flame retardant materials (the mixture of sericite powder and brominated flame retardant plus antimony trioxide, the weight ratio 10:2:1), 1 part of leveling agent polyacrylate solution, 2 parts of iron oxide yellow; prepare materials.

[0047] The production method is to add 2 kilograms of ethanol with a volume concentration of 50-70% per kilogram of N-methylolacrylamide to dissolve, and then mix it with polyurethane prepolymer in a reaction kettle. The reaction temp...

Embodiment 2

[0049] First, 45 parts of polyurethane prepolymer, 1.5 parts of N-methylolacrylamide, 3 parts of dibutyl phthalate, 0.7 parts of monoalkoxy pyrophosphate titanate coupling agent, 5 parts of talcum powder with product number TL75-45-98GB, 6 parts of light calcium carbonate (micronized calcium carbonate with average particle size d=1-5 μm), 0.2 part of tributyl phosphate, 0.7 part of isopropanol; mixed solvent 13 parts (a mixture of lignin and ethylene glycol butyl ether plus water, the weight ratio is 3:1:10), 5 parts of flame retardant materials (a mixture of sericite powder and brominated flame retardant plus antimony trioxide, the weight ratio 10:2:1), 1 part of N-methylpyrrolidone solution of polyurea modified by anti-settling agent, for material preparation.

[0050] The production method is to add 2 kilograms of ethanol with a volume concentration of 50-70% per kilogram of N-methylolacrylamide to dissolve, and then mix it with polyurethane prepolymer in a reaction kettl...

Embodiment 3

[0052] First, 50 parts of polyurethane prepolymer, 2 parts of N-methylolacrylamide, 5 parts of dibutyl phthalate, 1 part of monoalkoxypyrophosphate titanate coupling agent, 8 parts of talcum powder with product number TL75-45-98GB, 10 parts of light calcium carbonate (micronized calcium carbonate with average particle size d=1-5 μm), 0.3 parts of tributyl phosphate, 1 part of isopropanol; mixed solvent 15 parts (a mixture of lignin and ethylene glycol butyl ether plus water, the weight ratio is 3:1:10), 8 parts of flame retardant materials (a mixture of sericite powder and brominated flame retardant plus antimony trioxide, the weight ratio 10:2:1), 1 part of antifreeze 1,3-propanediol, 1 part of iron oxide red, and prepare materials.

[0053] The production method is to add 2 kilograms of ethanol with a volume concentration of 50-70% per kilogram of N-methylolacrylamide to dissolve, and then mix it with polyurethane prepolymer in a reaction kettle. The reaction temperature i...

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Abstract

The invention discloses water-soluble polyurethane flame-retardant coating and a preparation method thereof. The water-soluble polyurethane flame-retardant coating comprises a polyurethane prepolymer, N-hydroxymethyl acrylamide, phthalic acid dibutyl ester, a titanate coupling agent, talcum powder, light calcium carbonate, tributyl phosphate, isopropanol, a mixed solvent and a flame-retardant material. The preparation method comprises the following steps: dissolving every 1 kg by weight of N-hydroxymethyl acrylamide in 2 kg of 50-70% ethanol in volume concentration, mixing with the polyurethane prepolymer in a reaction kettle, enabling the components to react for 1 hour at 80-150 DEG C, and adding a mixture of isopropanol and a titanate coupling agent in a weight ratio of 1:1 to continuously react for 2-5 hours; subsequently adding phthalic acid dibutyl ester, talcum powder, light calcium carbonate, tributyl phosphate, the mixed solvent and the flame-retardant material, and uniformly mixing, thereby obtaining a water-soluble polyurethane flame-retardant coating product. The water-soluble polyurethane flame-retardant coating has the characteristics of good chemical resistance, good temperature resistance, good weather resistance, good stain resistance, high glossiness, long film service life and the like.

Description

technical field [0001] The invention relates to a preparation method of a coating, in particular to a water-soluble polyurethane flame-retardant coating and a preparation method thereof, belonging to the technical field of chemical composition and its preparation. Background technique [0002] In order to study paints with volatile organic compounds (VOC) below the regulations, paint scientists have so far created a series of new paints and coating technology systems: powder coatings, radiation-cured coatings (UV / EB systems), water-soluble Coatings, high-solid coatings and solvent-free coatings, among which powder coatings and radiation-cured coatings require special equipment for construction; although high-solid coatings are very close to ordinary solvent-based coatings in performance, they still have their disadvantages in construction. Convenience, for example, construction equipment is difficult to clean and heat sag phenomenon, etc.; and solvent-free coatings generally...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D5/18C09D7/12C09D7/00
CPCC09D175/14C08K3/2279C08K3/34C08K5/10C08K5/12C09D5/08C09D5/16C09D5/18C09D7/20C09D7/61C09D7/63
Inventor 谢刚马庆胡磊磊
Owner GUANGXI JIKUAN SOLAR ENERGY EQUIP
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