Water-based woodware clear primer and preparation method thereof

A technology for clear primer and woodware, applied in the field of coatings, can solve the problems of labor efficiency, labor, and easy generation of heat, saving manpower and material resources, shortening drying time, and improving work efficiency.

Pending Publication Date: 2022-03-22
濮阳展辰新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of modern labor is increasing day by day. The current water-based clear primer has poor sanding performance and is prone to sticking sandpaper, resulting in laborious, sandpaper-consuming and low labor efficiency.
Since ordinary water-based clear primers are mostly made of acrylic emulsion, which has a low glass transition temperature, it is easy to generate heat when sanding, and the acrylic emulsion is easy to soften when heated, resulting in sandpaper sticking
Some use self-crosslinking acrylic emulsion, but after all, the degree of crosslinking is low and the degree of improvement is small
If high Tg acrylic emulsion is used, it is necessary to double the amount of film-forming aids, resulting in slow drying and high VOC content

Method used

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  • Water-based woodware clear primer and preparation method thereof
  • Water-based woodware clear primer and preparation method thereof
  • Water-based woodware clear primer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1 Preparation of aqueous wood cleaner

[0031] This embodiment provides a water-based wood cleaped paint coating comprising a component (total weight percent): 50% of the aqueous acrylic resin; polyurethane modified acrylate I 30%; defoaming 0.5%; wetting agent 0.8%; 4% film forming aid; thickener 0.5%; margin is water.

[0032] The preparation method includes the following steps: First, each component is referred to, then a well-known water-based aqueous acrylic resin and a polyurethane modified acrylate are mixed, 700 ~ 900 rpm medium speed is 5 to 10 min, sequentially add defoaming agent, moisturizing Wet agent, film formation auxiliary, 1000 to 1200 rpm high speed dispersed 15 to 25 min to no shrinkage, and finally added thickeners and water, 700 ~ 900 rpm medium speed dispersed to standard viscosity 75 to 80 ku / 25 ° C.

Embodiment 2

[0033] Example 2 Preparation of aqueous wood cleaner

[0034] This embodiment provides a water-based wood cleaped paint coating comprising a component (total weight percent): 100% weight of the aqueous acrylic resin; polyurethane modified acrylate I 20%; defoaming 0.5%; wetting agent 0.8%; 4% film forming aid; thickener 0.5%; margin is water.

Embodiment 3

[0035] Example 3 Preparation of aqueous wood cleaner

[0036] This embodiment provides a water-based wood cleaped coating comprising a component (total weight percentage of 100%): 40% of the aqueous acrylic resin; polyurethane modified acrylate I 40%; defoaming 0.5%; wetting agent 0.8%; film forming aid 3%; thickener 0.5%; margin is water.

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Abstract

The invention provides a water-based wood clear primer and a preparation method thereof. The clear primer comprises the following components in percentage by weight: 40-50% of water-based acrylic resin, 30-40% of water-based polyurethane resin, 4-5% of a coalescing agent, 0.8-1.2% of a defoaming agent, 0.5-1% of a wetting agent, 0.5-1% of a thickening agent and 10-15% of water. The water-based woodware clear primer coating provided by the invention has the advantages of excellent polishing property, good powder discharge, no adhesion to abrasive paper and excellent transparency, the paint film resistance is tested according to GB / T 23999-2009 and completely reaches the national standard, the water resistance can reach the first-grade standard, the water-based woodware clear primer coating basically has no abnormity, and the clear primer coating can be re-coated without polishing after being dried for 2-3 hours under the normal temperature condition, so that the water-based woodware clear primer coating has the advantages of environmental protection, environmental protection and the like. Recoating transparency and adhesive force are not affected, manpower and material resources of a furniture factory are greatly saved, and working efficiency is improved.

Description

Technical field [0001] The present invention belongs to the field of coatings, and in particular, to a water-proof wood cleaning paint and a preparation method thereof. Background technique [0002] With the enhancement of human environmental awareness, limited emission standards are becoming more strict, which is designed to encourage new products with green environmental protection and energy saving and emission reduction. Therefore, the development and application of environmentally friendly coatings such as water resistance, powder and high solids, etc. in the area of ​​coating coating areas. [0003] The voices of oil-modified water is getting higher and higher, and GB18581-2020 has clear requirements for the VOC content of the coating, and the VOC emissions of coating use enterprises in different regions have clear requirements. Water-based paint is an environmentally friendly coating, gradually being concerned about people. The cost of modern labor is increasing. At presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D175/14
CPCC09D133/00C08L2201/10C09D175/14
Inventor 李艳宁陈寿生罗先平
Owner 濮阳展辰新材料有限公司
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