Water-based wood coating and its preparation method and application

A wood coating, water-based technology, used in polyurea/polyurethane coatings, coatings, latex paints, etc., can solve problems such as explosive tendons, poor air permeability, and easy cracking.

Active Publication Date: 2020-07-07
苏州市金能高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The first object of the present invention is to provide a water-based wood coating, which forms a dense three-dimensional network structure through the joint action of raw materials such as polyurethane modified acrylic emulsion, lignocellulose and nano-silica sol, so that the formed coating film has good Excellent hardness, air permeability, flexibility and impact resistance, used to improve the defects of poor air permeability, easy to crack, easy to deform and easy to burst in the coating film of existing water-based wood coatings

Method used

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  • Water-based wood coating and its preparation method and application
  • Water-based wood coating and its preparation method and application

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preparation example Construction

[0066] According to another aspect of the present invention, the present invention also provides a kind of preparation method of waterborne woodware coating, and this preparation method comprises the following steps:

[0067] The polyurethane modified acrylic emulsion, nano-silica sol, lignocellulose, film-forming aid, glass powder, silane coupling agent and water of formula quantity, and optional polyethylene wax micropowder, polyethylene wax emulsion, sepiolite , substrate wetting agent, defoamer and leveling agent, after mixing evenly, get water-based wood coatings.

[0068] The preparation method of the water-based wood paint provided by the invention has the advantages of simple process, easy operation and industrial production.

[0069] According to the third aspect of the present invention, the present invention also provides an application of water-based wood coating in wood furniture. In view of the advantages of the above-mentioned water-based wood coatings, it has ...

Embodiment 1

[0072] A water-based wood coating, mainly made of the following raw materials in parts by weight: 40 parts of polyurethane modified acrylic emulsion, 10 parts of nano-silica sol, 3 parts of lignocellulose, 4 parts of film-forming aids, 1 part of glass powder, silane 0.3 parts of coupling agent and 5 parts of deionized water;

[0073] Among them, the average length of lignocellulose is 10 μm, the solid content of nano-silica sol is 30%, the average particle size of silicon dioxide is 25nm, the film-forming aid is dodecyl alcohol ester, and the silane coupling agent is vinyl trimethyl Oxysilane.

Embodiment 2

[0075] A water-based wood coating, mainly made of the following raw materials in parts by weight: 40 parts of polyurethane modified acrylic emulsion, 10 parts of nano-silica sol, 3 parts of lignocellulose, 4 parts of film-forming aids, 1 part of glass powder, poly 1 part of ethylene wax micropowder, 0.2 part of substrate wetting agent, 1 part of defoamer, 0.3 part of silane coupling agent and 5 parts of deionized water;

[0076] Among them, the average length of lignocellulose is 10 μm, the solid content of nano-silica sol is 30%, the average particle size of silicon dioxide is 25nm, the film-forming aid is dodecyl alcohol ester, and the silane coupling agent is vinyl trimethyl Oxysilane.

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Abstract

The invention provides an aqueous wood coating as well as a preparation method and application thereof, relating to the technical field of coatings. According to the aqueous wood coating, polyurethane-modified acrylic emulsion serves as main film forming matter, lignocellulose and nanometer silica sol are compositely added, the lignocellulose can permeate into the film forming matter to form a staggered network structure, the nanometer silica sol enters a gap between lignocellulose, the raw materials act together to form a dense three-dimensional network structure, so that a formed coating film has excellent rigidity, air permeability, flexibility and impact resistance, and is used for improving the detects of the coating film for a current aqueous wood coating such as poor air permeability, easy fracture, easy deformation and easy rid explosion. The invention further provides the preparation method of the aqueous wood coating, the preparation method is simple in process and easy to operate, and can be produced in an industrial scale.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to water-based wood coatings and their preparation methods and applications. Background technique [0002] With the in-depth promotion of the concept of environmental protection and low carbon, the application of organic oil-soluble coatings with high VOC release is more and more restricted, while the environment-friendly water-based coatings with low VOC release are more and more popular, and become the development of wood coatings. mainstream trend. [0003] Water-based wood coatings are an important part of water-based coatings. Wood coatings that use water as the main diluent or can be diluted with water can be called water-based wood coatings. Water-based wood coatings are mainly used to finish the surface of wood furniture, which not only has the effect of beautifying and decorating, but also protects the wood, thereby prolonging the service life of wood furniture. Since th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D5/02C09D7/61C09D7/65C09D7/20
CPCC08K2201/011C08L2205/04C08L2205/16C08L2207/53C09D5/024C09D5/028C09D175/14C08L97/005C08K5/103C08K3/36C08K3/40C08L23/06C08K5/06C08K13/02C08K3/34
Inventor 田继忠
Owner 苏州市金能高新材料有限公司
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