UV-cured water-based anti-yellowing white wood lacquer and preparation method thereof

A technology of anti-yellowing and wood paint, applied in the field of coatings, can solve the problems of poor light curing performance and poor anti-yellowing of paint film, and achieve the effects of fast curing speed, good adhesion, excellent water resistance and chemical resistance

Pending Publication Date: 2020-12-29
上海展辰涂料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a UV-cured water-based anti-yellowing white wood paint and a preparation method thereof, so as to solve the problems of poor yellowing resistance and poor light-curing performance of the white wood paint in the prior art.

Method used

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  • UV-cured water-based anti-yellowing white wood lacquer and preparation method thereof
  • UV-cured water-based anti-yellowing white wood lacquer and preparation method thereof
  • UV-cured water-based anti-yellowing white wood lacquer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A UV-cured water-based anti-yellowing white wood paint, made of the following mass fractions of raw materials: water-based UV resin NeoRez R-465: 60.0%, thickener 1 (PUR299): 0.5%, photoinitiator TPO-L : 3.0%, photoinitiator 819DW: 1.0%, titanium dioxide R706: 17.0%, wetting and dispersing agent TEGO755W: 0.8%, substrate wetting agent BYK3455: 0.8%, foam suppressor BYK-028: 0.1%, defoaming Agent TEGO-902W: 0.2%, antifoaming agent BYK-024: 0.3%, thickener 2 (PUR299): 0.2%, deionized water: 16.1%.

[0031] The preparation method of the water-based anti-yellowing white wood paint of this UV curing is:

[0032] (1) Add the water-based UV resin NeoRez R-465 into the dispersing tank, and add thickener 1, photoinitiator TPO-L, photoinitiator 819DW, and wetting and dispersing agent TEGO755W in sequence while stirring at a speed of 500r / min , Antifoaming agent BYK-028, defoaming agent TEGO-902W, antifoaming agent BYK-024, titanium dioxide R706, substrate wetting agent BYK3455, ...

Embodiment 2

[0035] A UV-cured water-based anti-yellowing white wood paint, made of the following mass fractions of raw materials: water-based UV resin NeoRez R-465: 65.0%, thickener 1 (PUR299): 0.4% photoinitiator TPO-L: 2.0%, photoinitiator 819DW: 1.0%, titanium dioxide R706: 15.0%, wetting and dispersing agent TEGO755W: 1.0%, substrate wetting agent BYK3455: 0.8%, foam suppressor BYK-028: 0.1%, defoaming agent TEGO-902W: 0.2%, defoamer BYK-024: 0.3%, thickener 2 (PUR40): 0.3%, deionized water: 9.5%.

[0036] The preparation method of the water-based anti-yellowing white wood paint of this UV curing is:

[0037] (1) Add the water-based UV resin NeoRez R-465 into the dispersing tank, and add thickener 1, photoinitiator TPO-L, photoinitiator 819DW, and wetting and dispersing agent in sequence under stirring at a speed of 350r / min TEGO755W, antifoaming agent BYK-028, defoaming agent TEGO-902W, antifoaming agent BYK-024, titanium dioxide R706, substrate wetting agent BYK3455, after stirring...

Embodiment 3

[0040] A UV-cured water-based anti-yellowing white wood paint, made of the following mass fractions of raw materials: water-based UV resin NeoRez R-465: 70.0%, thickener 1 (PUR299): 0.4%, photoinitiator TPO-L : 2.0%, photoinitiator 819DW: 1.0%, titanium dioxide R706: 15.0%, wetting and dispersing agent TEGO755W: 0.8%, substrate wetting agent BYK3455: 0.8%, foam suppressor BYK-028: 0.1%, defoaming Agent TEGO-902W: 0.2%, antifoaming agent BYK-024: 0.3%, thickener 2 (PUR299): 0.2%, deionized water: 10.8%.

[0041] The preparation method of the water-based anti-yellowing white wood paint of this UV curing is:

[0042](1) Add the water-based UV resin NeoRez R-465 into the dispersion tank, and add thickener 1, photoinitiator TPO-L, photoinitiator 819DW, and wetting and dispersing agent TEGO755W in turn under stirring at a speed of 400r / min , Antifoaming agent BYK-028, defoaming agent TEGO-902W, antifoaming agent BYK-0 24, titanium dioxide R706, substrate wetting agent BYK3455, afte...

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Abstract

The invention provides UV-cured water-based anti-yellowing white wood lacquer and a preparation method thereof. The wood lacquer is prepared from the following raw materials in percentage by mass: 60%-80% of water-based UV resin, 2%-4% of a photoinitiator, 0.5%-1.0% of a wetting dispersant, 13%-17% of titanium dioxide, 0.5%-1.0% of a base material wetting agent, 0.3%-0.7% of a defoaming agent, 0.2%-0.5% of a thickener 1, 0.1-0.2% of a thickener 2, and the balance of deionized water. According to the invention, an aliphatic polyurethane acrylic acid dispersion with high reaction activity is mainly used as a water-based UV resin, a photoinitiator is a cracking type photoinitiator with good yellowing resistance, a reticular cross-linked structure can be formed after photocuring, the product has the advantages of high curing speed, favorable yellowing resistance of the paint film, excellent water resistance, excellent chemical resistance and favorable adhesive force, and the hardness can reach 2H.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a UV-cured water-based anti-yellowing white wood paint and a preparation method thereof. Background technique [0002] UV light-curing coating is a kind of high-efficiency, environmental protection, energy-saving, high-quality light-curing material. UV curing coating is a kind of green and environmental protection coating, which is widely used in office furniture, cabinets, handicrafts, etc. [0003] At present, the water-based coatings used on wood are basically composed of two-component water-based wood paint, one-component water-based acrylic paint, one-component water-based polyurethane paint or a mixture of the two in the later stage. Water-based one-component wood lacquer systems have disadvantages such as slow drying speed, poor hardness, and poor water and chemical resistance properties, and are suitable for use in some occasions with relatively low requireme...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D7/61C08F2/48
CPCC09D175/14C09D7/61C08F2/48C08K2003/2241C08L2201/08C08K3/22
Inventor 熊峰陈寿生袁吉昌
Owner 上海展辰涂料有限公司
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