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Flame-retardant water-based polyurethane paint

A technology of water-based polyurethane and polyurethane resin, which is applied in the field of coatings, can solve the problems of water-based polyurethane coatings that cannot meet the requirements of society in terms of water resistance and flame retardancy, small molecular weight, poor water resistance, etc., and achieve the improvement of coating softening and crosslinking degree Increase and enhance the effect of lipophilicity

Inactive Publication Date: 2016-04-20
ANHUI ANDA HUATAI NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the molecular chain chemical structure of water-based polyurethane is the same as that of solvent-based polyurethane, compared with solvent-based polyurethane, there are still some defects in performance, such as small molecular weight, poor water resistance and low hardness, which limit its application.
At present, waterborne polyurethane coatings cannot meet the requirements of society in terms of water resistance and flame retardancy, and need to be modified

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A flame-retardant water-based polyurethane coating proposed by the present invention, its raw materials include by weight: 85 parts of modified polyurethane resin, 15 parts of water-based phenolic resin, 7 parts of water-based acrylic resin, 6 parts of bentonite, 15 parts of zeolite powder, diatomaceous earth 16 parts, 12 parts of talcum powder, 4 parts of thickener, 3 parts of leveling agent, 2 parts of defoamer, 1 part of preservative, 3 parts of pigment.

[0020] The modified polyurethane resin is prepared according to the following steps: after mixing 65 parts of organophosphorus polyester polyol and 55 parts of tripolyxylylene diisocyanate in parts by weight, the temperature is raised to 77 °C, kept for 4.6 hours, and then cooled to 39 °C Add 5 parts of neopentyl glycol, 3 parts of sodium ethylenediamine ethanesulfonate, 6 parts of pentaerythritol and N,N-dimethylformamide and mix well, then add 1.1 parts of sodium o-phenylphenate, and heat up to 78°C. Insulate for...

Embodiment 2

[0024] A flame-retardant water-based polyurethane coating proposed by the present invention, its raw materials include by weight: 88 parts of modified polyurethane resin, 12 parts of water-based phenolic resin, 10 parts of water-based acrylic resin, 3 parts of bentonite, 18 parts of zeolite powder, diatomaceous earth 13 parts, 15 parts of talcum powder, 2 parts of thickener, 5 parts of leveling agent, 1 part of defoamer, 2 parts of preservative, 2 parts of pigment.

[0025] The modified polyurethane resin is prepared according to the following steps: after mixing 68 parts of organophosphorus polyester polyol and 52 parts of tripolyxylylene diisocyanate in parts by weight, the temperature is raised to 80°C, kept for 4 hours, cooled to 42°C, and then added Mix 4 parts of neopentyl glycol, 5 parts of sodium ethylenediamine ethanesulfonate, 4 parts of pentaerythritol and N,N-dimethylformamide, then add 1.4 parts of sodium o-phenylphenate, heat up to 75°C, and keep warm The first mat...

Embodiment 3

[0029] A flame-retardant water-based polyurethane coating proposed by the present invention, its raw materials include by weight: 86 parts of modified polyurethane resin, 14 parts of water-based phenolic resin, 8 parts of water-based acrylic resin, 5 parts of bentonite, 16 parts of zeolite powder, diatomaceous earth 15 parts, 13 parts of talcum powder, 3.5 parts of thickener, 3.5 parts of leveling agent, 1.8 parts of defoamer, 1.5 parts of preservative, 2.6 parts of pigment.

[0030] The modified polyurethane resin is prepared according to the following steps: after mixing 66 parts of organophosphorus polyester polyol and 54 parts of tripolyxylylene diisocyanate in parts by weight, the temperature is raised to 78°C, kept for 4.4 hours, and then cooled to 40°C Add 4.5 parts of neopentyl glycol, 3.5 parts of sodium ethylenediamine ethanesulfonate, 5.5 parts of pentaerythritol and N,N-dimethylformamide and mix well, then add 1.2 parts of sodium o-phenylphenate, and heat up to 77°C...

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Abstract

The invention discloses flame-retardant water-based polyurethane paint which is prepared from 85-88 parts of modified polyurethane resin, 12-15 parts of resol resin, 7-10 parts of waterborne acrylic resin, 3-6 parts of bentonite, 15-18 parts of zeolite powder, 13-16 parts of diatomite, 12-15 parts of talcum powder, 2-4 parts of a thickening agent, 3-5 parts of a flatting agent, 1-2 parts of a defoaming agent, 1-2 parts of an anti-corrosion agent and 2-3 parts of pigment. The flame-retardant water-based polyurethane paint has excellent heat resistance, fireproof performance and flame retardancy, excellent in water resistance, high in adhesive force, high in hardness and high in drying speed.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a flame-retardant waterborne polyurethane coating. Background technique [0002] Water-based polyurethane uses water as the dispersion medium, which has the advantages of being environmentally friendly, non-toxic, and difficult to burn, and can adjust the comprehensive properties of the resin material by changing the type and proportion of soft and hard segments. Since water-based polyurethane was introduced into the market in the late 1960s, water-based polyurethane has been widely used for its excellent bonding ability, excellent temperature change resistance, excellent low temperature resistance, good biocompatibility, and environmental protection and non-toxic properties. Applied in many fields. Although the molecular chain chemical structure of water-based polyurethane is the same as that of solvent-based polyurethane, compared with solvent-based polyurethane, there are st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C09D161/06C09D133/00C09D7/12C09D7/02C09D5/18C08G18/79C08G18/66C08G18/46C08G63/692C09D7/45
CPCC08G18/4684C08G18/664C08G18/6644C08G18/778C08G18/794C08G63/6924C08L2201/08C08L2205/03C09D5/18C09D175/06C09D7/45C09D7/61C08L61/06C08L33/00C08K3/00C08K3/346C08K3/34C08K3/36
Inventor 许戈文熊潜生霍俊丽戴震何纪慧杨立春
Owner ANHUI ANDA HUATAI NEW MATERIALS CO LTD
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