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High/low-temperature-resistant environment-friendly water-based polyurethane coating

A water-based polyurethane, high and low temperature resistance technology, applied in the field of coatings, can solve the problems of film heat resistance, low temperature resistance, water resistance, solvent resistance and poor mechanical properties, achieve good hydrolysis resistance, increase mechanical properties, The effect of good low temperature resistance

Inactive Publication Date: 2016-07-27
WUHU SHUANGBAO BUILDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitations of its molecular structure, the waterborne polyurethane prepared by traditional methods has disadvantages such as heat resistance, low temperature resistance, water resistance, solvent resistance, and poor mechanical properties. Therefore, it is necessary to provide a new coating

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022]A kind of high and low temperature resistant environment-friendly waterborne polyurethane paint, its raw material comprises by weight: 100 parts of modified polyurethane emulsion, 10 parts of water, 4 parts of propylene glycol methyl ether acetate, 20 parts of montmorillonite, 10 parts of kaolin, polyethylene glycol 4003 parts, 2 parts of ammonium lauryl sulfate, TegoFoamex8430.08 parts, TegoFoamex14880.03 parts, emulsifier OP-100.05 parts, wetting agent Wet5000.1 parts, wetting agent H-1400.5 parts, leveling agent 0.2 parts , 0.4 part of polyacrylamide, 0.1 part of sodium carboxymethylcellulose, 0.06 part of antifungal agent;

[0023] Wherein, in the preparation process of the modified polyurethane emulsion, take 300 mesh diatomite, raise the temperature to 110°C, keep it warm for 1 hour, cool to room temperature, add 3-aminopropyltriethoxysilane ethanol with a mass fraction of 0.2wt% Aqueous solution, ultrasonically disperse evenly, pass nitrogen gas, heat up to 85°C, ...

Embodiment 2

[0025] A kind of high and low temperature resistant environment-friendly waterborne polyurethane coating, its raw material comprises by weight: 120 parts of modified polyurethane emulsion, 5 parts of water, 6 parts of propylene glycol methyl ether acetate, 10 parts of montmorillonite, 15 parts of kaolin, polyethylene glycol 4001 parts, 4 parts of ammonium lauryl sulfate, TegoFoamex8430.06 parts, TegoFoamex14880.05 parts, emulsifier OP-100.03 parts, wetting agent Wet5000.3 parts, wetting agent H-1400.3 parts, leveling agent 0.4 parts , 0.2 part of polyacrylamide, 0.3 part of sodium carboxymethyl cellulose, 0.04 part of antifungal agent;

[0026] Wherein, in the preparation process of the modified polyurethane emulsion, take 400 mesh diatomite, raise the temperature to 90°C, keep it warm for 2 hours, cool to room temperature, and add 3-aminopropyltriethoxysilane ethanol with a mass fraction of 0.1wt% Aqueous solution, ultrasonically disperse evenly, pass in nitrogen, heat up to ...

Embodiment 3

[0028] A kind of high and low temperature resistant environment-friendly waterborne polyurethane coating, its raw material comprises by weight: 105 parts of modified polyurethane emulsion, 8 parts of water, 4.5 parts of propylene glycol methyl ether acetate, 18 parts of montmorillonite, 12 parts of kaolin, polyethylene glycol 4002.5 parts, 2.5 parts of ammonium lauryl sulfate, TegoFoamex8430.075 parts, TegoFoamex14880.035 parts, emulsifier OP-100.045 parts, wetting agent Wet5000.15 parts, wetting agent H-1400.45 parts, leveling agent 0.25 parts , 0.35 parts of polyacrylamide, 0.15 parts of sodium carboxymethylcellulose, 0.055 parts of antifungal agent;

[0029] Among them, in the preparation process of the modified polyurethane emulsion, take 300 mesh diatomite, heat up to 105°C, keep it warm for 1.3h, cool to room temperature, add 3-aminopropyltriethoxysilane with a mass fraction of 0.18wt% Aqueous ethanol solution, ultrasonically disperse uniformly, pass nitrogen gas, heat u...

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PUM

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Abstract

The invention discloses a high / low-temperature-resistant environment-friendly water-based polyurethane coating. The coating is prepared from, by weight, 100-120 parts of modified polyurethane emulsion, 5-10 parts of water, 4-6 parts of propylene glycol methyl ether acetate, 10-20 parts of montmorillonite, 10-15 parts of kaolin, 1-3 parts of polyethylene glycol 400, 2-4 parts of ammonium lauryl sulfate, 0.06-0.08 part of Tego Foamex 843, 0.03-0.05 part of Tego Foamex 1488, 0.03-0.05 part of emulsifier OP-10, 0.1-0.3 part of a wetting agent Wet500, 0.3-0.5 part of a wetting agent H-140, 0.2-0.4 part of a flatting agent, 0.2-0.4 part of polyacrylamide, 0.1-0.3 part of sodium carboxymethylcellulose and 0.04-0.06 part of mildew inhibitor. The coating is resistant to high temperature and low temperature and can purify air.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a high-low temperature resistant and environmentally friendly water-based polyurethane coating. Background technique [0002] Due to its special structure, waterborne polyurethane has unique physical and chemical properties, such as adjustable softness and hardness, good wear resistance, strong adhesion, etc. Waterborne polyurethane coatings with high performance and low VOC content have been widely used. However, due to the limitation of molecular structure of the water-based polyurethane prepared by the traditional method, the film has disadvantages such as heat resistance, low temperature resistance, water resistance, solvent resistance, and poor mechanical properties. Therefore, it is necessary to provide a new coating. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a high and low tem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/08C09D7/12C09D5/14C08F283/00C08F220/18C08G18/76C08G18/69C08G18/67C08G18/34
CPCC08F283/008C08G18/348C08G18/672C08G18/69C08G18/7614C08K2201/014C08L2201/08C08L2205/03C09D5/14C09D5/18C09D7/61C09D7/63C09D151/08C08L33/26C08L1/286C08K13/06C08K9/06C08K3/34C08K3/346C08K5/101C08G18/6576C08F220/1804
Inventor 胡昌悌
Owner WUHU SHUANGBAO BUILDING MATERIAL
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