A high-hardness, high-resistance two-component water-based wood full-matte transparent finish

A clear topcoat, two-component technology, used in coatings, polyurea/polyurethane coatings, etc., can solve the problems of reduced paint resistance and permeability, blue light, haze, etc., to achieve strong scratch resistance and good Matting effect, good leveling effect

Active Publication Date: 2022-04-12
广东华楠树环保涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the actual formula design, there are many problems in the water-based matte varnish, such as the matting powder is not easy to disperse, the storage stability of the coating, the transparency of the final coating film, etc., especially in dark walnut, black brown wood and other deep It is especially obvious on colored substrates, which are often accompanied by fog, blue light, whitening and other disadvantages, which restricts the market development confidence of water-based wood coatings; Matte, very difficult, and the resistance and permeability of the paint will be greatly weakened

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040]Embodiment 1 of the present invention provides a high-hardness, high-resistance two-component all-matte transparent topcoat for woodware. In parts by weight, the preparation raw materials of the topcoat include 75 parts of polyurethane emulsion, 7.5 parts of curing agent, 4 Ether substances, 1 part of polyether siloxane copolymer, 18 parts of silicon dioxide, 0.2 parts of rheological additives, 3 parts of wax powder, 4.5 parts of organic matte powder and 7 parts of deionized water;

[0041] Described curing agent is Wanhua 269 type curing agent;

[0042] The average particle size of silica is 7nm, LEVASILCC301;

[0043] The polyether siloxane copolymer includes Tego 410, Tego 245 and Tego 902, and the weight ratio of Tego 410, Tego 245 and Tego 902 is 1.5:2.5:1;

[0044] The ethers include dipropylene glycol monobutyl ether and propylene glycol ether, and the weight ratio of dipropylene glycol monobutyl ether to propylene glycol ether is 1:1.5;

[0045] The rheological...

Embodiment 2

[0050] Embodiment 2 of the present invention provides a high-hardness, high-resistance two-component all-matte transparent topcoat for woodware. In parts by weight, the preparation raw materials of the topcoat include 80 parts of polyurethane emulsion, 7 parts of curing agent, 8 parts Ether substances, 8 parts of polyether siloxane copolymer, 30 parts of silicon dioxide, 0.35 parts of rheological additives, 4 parts of wax powder, 6.5 parts of organic matte powder and 10 parts of deionized water;

[0051] Described curing agent is Wanhua 269 type curing agent;

[0052] The average particle size of silica is 7nm, LEVASILCC301;

[0053] The polyether siloxane copolymer includes Tego 410, Tego 245 and Tego 902, and the weight ratio of Tego 410, Tego 245 and Tego 902 is 2:3:1;

[0054] The ethers include dipropylene glycol monobutyl ether and propylene glycol ether, and the weight ratio of dipropylene glycol monobutyl ether to propylene glycol ether is 1:3;

[0055] The rheologic...

Embodiment 3

[0060] Embodiment 3 of the present invention provides a high-hardness, high-resistance two-component all-matte transparent topcoat for woodware. In parts by weight, the preparation raw materials of the topcoat include 70 parts of polyurethane emulsion, 5 parts of curing agent, 2 parts Ether substances, 0.8 parts of polyether siloxane copolymer, 10 parts of silicon dioxide, 0.05 parts of rheological additives, 1.5 parts of wax powder, 2.5 parts of organic matte powder and 5 parts of deionized water;

[0061] Described curing agent is Wanhua 269 type curing agent;

[0062] The average particle size of silica is 7nm, LEVASILCC301;

[0063] The polyether siloxane copolymer includes Tego 410, Tego 245 and Tego 902, and the weight ratio of Tego 410, Tego 245 and Tego 902 is 1:2:1;

[0064] The ethers include dipropylene glycol monobutyl ether and propylene glycol ether, and the weight ratio of dipropylene glycol monobutyl ether to propylene glycol ether is 1:0.5;

[0065] The rheo...

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Abstract

The invention relates to wood furniture coatings, more specifically, the invention relates to a high-hardness, high-resistance two-component water-based full-matte transparent topcoat for wood and a preparation method thereof. The first aspect of the present invention provides a high-hardness, high-resistance two-component full-matte transparent topcoat for woodware. The raw materials for its preparation include polyurethane emulsion, curing agent, ether substances, polyether siloxane copolymer, dioxide Silicon, rheological additives and deionized water; wherein, the particle size of silicon dioxide is 5-10nm.

Description

technical field [0001] The invention relates to wood furniture coatings, more specifically, the invention relates to a high-hardness, high-resistance two-component water-based full-matte transparent topcoat for wood and a preparation method thereof. Background technique [0002] With the improvement of material and cultural living standards, people have higher and higher requirements for the aesthetics and decorative effects of home furniture. With the continuous development and maturity of coatings, the development direction of coatings has changed from the original emphasis on decoration and protection. It has turned to pay more attention to environmental protection and functionality; water-based wood coatings can be divided into matte, semi-matte and gloss according to their gloss. At present, matte varnishes are widely used in the furniture coating market because of their gloss. Soft and delicate touch are favored by consumers. [0003] However, in the actual formula de...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C09D175/04C09D7/61C09D7/65C09D7/63
CPCC09D175/04C09D7/61C09D7/65C09D7/63C09D7/67C08K2201/011C08L83/12C08K3/36C08K5/06
Inventor王娜娜
Owner广东华楠树环保涂料有限公司