Method for preparing aqueous, environmentally-friendly and waterproof wood door coating

An environmental protection and wooden door technology, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems such as failure to achieve environmental protection, decoration and protection of wooden doors, affect the appearance and performance of finished wooden doors, and general water resistance performance, etc., to achieve Ensure product adhesion, enhance adhesion effect, and enhance adhesion effect

Inactive Publication Date: 2018-04-13
合肥林邦门业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditionally, the coatings used for wooden doors are mostly solvent-based coatings, which contain a large amount of organic solvents such as benzene, toluene, and xylene as coatings. The use of this type of coating has great disadvantages in environmental protection, that is, it will pollute the environment. Harmful to the human body, so this type of oil-based paint is gradually being restricted in use
[0003] From the perspective of environmental protection, wooden door coatings that do not contain harmful solvents have been developed and applied in large quantities, but the water resistance of wooden door coatings currently on the market is average, resulting in problems such as cracking and peeling of wooden door paint films after coating due to environmental and climatic factors, affecting wooden doors. The appearance and performance of the finished product cannot achieve the effects of environmental protection, decoration and protection of wooden doors

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A preparation method of water-based environmental protection water-resistant wooden door coating, comprising the steps of:

[0016] S1. 50g of aqueous polyurethane dispersion with a solid content of 34.5%, 25g of epoxy novolac resin, 1g of glycerol, 2g of simethicone, 1g of nonylphenol polyoxyethylene ether, and 2g of methylene dithiocyanate , 1g calcium stearate, 2g polyethylene glycol, and 120g water were stirred evenly, and the stirring speed was 1400r / min to obtain a prefabricated material;

[0017] S2. Add 8g sepiolite powder, 1g precipitated barium sulfate, 12g fumed white carbon black, 1g microcrystalline paraffin to 200g prefabricated material and stir evenly, add 2g sodium lauryl ether sulfate, 4g hydroxyethyl methylcellulose 10g of diethylene glycol dimethyl ether was stirred evenly to obtain a water-based environmental protection water-resistant wooden door coating.

Embodiment 2

[0019] A preparation method of water-based environmental protection water-resistant wooden door coating, comprising the steps of:

[0020] S1. 80g of water-based polyurethane dispersion with a solid content of 36.2%, 15g of epoxy novolac resin, 5g of glycerol, 1g of simethicone, 2g of nonylphenol polyoxyethylene ether, and 1g of methylene dithiocyanate , 2g calcium stearate, 1g polyethylene glycol, and 140g water were stirred evenly, and the stirring speed was 1200r / min to obtain a prefabricated material;

[0021] S2, add 2g sepiolite powder, 6g precipitated barium sulfate, 2g fumed white carbon black, 4g microcrystalline paraffin to 220g prefabricated material and stir evenly, add 1g sodium lauryl alcohol ether sulfate, 8g hydroxyethyl methylcellulose , 4g of diethylene glycol dimethyl ether and stir evenly to obtain a water-based environmental protection water-resistant wooden door coating.

Embodiment 3

[0023] A preparation method of a water-based environmental protection water-resistant wooden door coating, comprising the steps of:

[0024] S1. 60g of aqueous polyurethane dispersion with a solid content of 35%, 22g of epoxy phenolic resin, 2g of glycerol, 1.8g of simethicone, 1.3g of nonylphenol polyoxyethylene ether, and 1.8g of methylene disulfide Cyanate ester, 1.4g calcium stearate, 1.7g polyethylene glycol, and 125g water were stirred evenly, and the stirring speed was 1350r / min to obtain a prefabricated material;

[0025] S2, add 6g sepiolite powder, 2g precipitated barium sulfate, 10g fumed white carbon black, 2g microcrystalline paraffin to 205g prefabricated material and stir evenly, add 1.8g sodium lauryl alcohol ether sulfate, 5g hydroxyethyl methylcellulose element, 8g diethylene glycol dimethyl ether and stir evenly to obtain water-based environmental protection water-resistant wooden door coating.

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PUM

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Abstract

The invention discloses a method for preparing an aqueous, environmentally-friendly and waterproof wood door coating. The method comprises the following steps: uniformly stirring an aqueous polyurethane dispersion, epoxy phenolic resin, glycerol, dimethicone, polyoxy ethylene nonyl phenyl ether, methylene dithiocyanate, calcium stearate, polyethylene glycol and water to obtain a prefabricated material; and adding sepiolite powder, precipitated barium sulfate, fumed silica and microcrystalline paraffin to the prefabricated material, carrying out uniform stirring, adding sodium lauryl ether sulfate, hydroxyethyl methylcellulose and diethylene glycol dimethyl ether, and carrying out uniform stirring to obtain the aqueous, environmentally-friendly and waterproof wood door coating. The coatingobtained through the method for preparing the aqueous, environmentally-friendly and waterproof wood door coating has an excellent waterproof property, and has environmental protection, decoration andprotection effects, a film formed by the coating has further enhanced adhesion and excellent strong chemical corrosion resistance, and also has resistance to wet heat and temperature variation, and the coating makes exterior walls have no spot or shedding phenomenon even in an extremely severe environment.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a preparation method of a water-based environmental protection and water-resistant wooden door coating. Background technique [0002] Traditionally, the coatings used for wooden doors are mostly solvent-based coatings, which contain a large amount of organic solvents such as benzene, toluene, and xylene as coatings. The use of this type of coating has great disadvantages in environmental protection, that is, it will pollute the environment. Harmful to the human body, so this type of oil-based paint is gradually being restricted in use. [0003] From the perspective of environmental protection, wooden door coatings that do not contain harmful solvents have been developed and applied in large quantities, but the water resistance of wooden door coatings currently on the market is average, resulting in problems such as cracking and peeling of wooden door paint films after coating du...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D161/06C09D175/04C09D5/08C09D7/63C09D7/65C09D7/61
CPCC08L2201/08C08L2205/035C09D5/08C09D161/06C09D175/04C08L75/04C08L71/02C08L91/06C08L1/284C08K13/02C08K5/053C08K5/098C08K3/36C08K5/06C08L61/06
Inventor 袁中领
Owner 合肥林邦门业有限公司
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