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Long-acting formaldehyde-resistant water-based crylic acid wood lacquer composite

A technology of acrylic woodware and composition, applied in the direction of coating, etc., can solve the problems of easy aggregation of nano-powders, achieve the effects of promoting fixation and decomposition, improving formaldehyde resistance, and eliminating formaldehyde

Inactive Publication Date: 2011-02-09
江苏大象东亚制漆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the problem that nano-powders are easy to agglomerate in the prior art formaldehyde-resistant water-based wood lacquer, and to provide an improved water-based acrylic wood lacquer composition

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of acrylic water-based wood paint transparent putty, its raw material formula is as follows by weight percentage: 60% of acrylic resin (Solutia 6295W) with a solid content of 45%, 2% of film-forming aid (diethylene glycol butyl ether) , deionized water 15.4%, defoamer (Nopco NXZ) 0.5%, dispersant (SN 5040) 0.2%, 1250 mesh talc powder 5%, 1250 mesh precipitated barium sulfate 5%, effective content of 15% nano titanium dioxide sol 5 %, bamboo charcoal powder with a particle size of 20 microns 2%, thickener HBR-250 3.6%, thickener Thicklevelling 6320.4%, leveling agent BYK-34 60.5%, ammonia water 0.4%.

[0016] The production process of acrylic water-based wood paint transparent putty is as follows:

[0017] At 500rpm, add deionized water, film-forming aids, defoamers, dispersants, talcum powder, precipitated barium sulfate, nano-titanium dioxide sol, bamboo charcoal powder and thickeners in the dispersion bucket in sequence and disperse at 2000rpm for 30 minutes at...

Embodiment 2

[0024] A water-based acrylic high-gloss clear finish paint, its raw material formula is as follows by weight percentage: acrylic resin (Wonkel 40-416) 76.4%, defoamer (Nopco NXZ) 0.6%, leveling agent BYK-0341 %, 6% of film-forming aid (diethylene glycol butyl ether), 10% of nano-titanium dioxide sol with an effective content of 15%, 4% of bamboo charcoal powder with a particle diameter of 10 microns, and 2% of deionized water.

[0025] The production process of waterborne acrylic high-gloss clear topcoat is as follows:

[0026] At 500rpm, add each raw material into the dispersion barrel in turn, disperse at 2000rpm for 30 minutes at high speed, and then grind until the fineness is less than 30 microns.

[0027] The technical indicators of waterborne acrylic high-gloss clear topcoat are as follows:

[0028] Surface dry time: 15min; pencil hardness: 1H-2H; adhesion: level 1

[0029] Formaldehyde elimination rate (30d) 92%.

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Abstract

The invention relates to a water-based crylic acid wood lacquer composite, comprising 40-90 parts of acrylic resin emulsion or acrylic resin sol, 1-15 parts of film coalescing aid, 1-20 parts of deionized water, 0.01-1 part of defoaming agent, 0.01-2 parts of flatting agent, 0.01-25 parts of nanometer titanium dioxide, 0.01-8 parts of bamboo charcoal powder, 0-2 parts of thickening agent, 0-0.5 part of preservative, 0-0.05 part of essence, 0-0.5 part of pH stabilizing agent, 0-50 parts of pigment, 0-30 parts of padding and 0-10 parts of wax emulsion; wherein the acrylic resin emulsion or acrylic resin sol takes water as a dispersion medium and the solid content is 40wt%-60wt%; and the nanometer titanium dioxide also takes water as the dispersion medium, the effective solid content is 15-25%, the pH value is 7-10 and the grain size is 1-100 nanometers. In the composite of the invention, the nanometer titanium dioxide sol has the characteristics of very high dispersibility and stability, can maximize the photocatalytic function of the nanometer material; and meanwhile, the bamboo charcoal in the composite has very good adsorption function, can effective adsorb formaldehyde released from timbers and air and promote fixation and decomposition of the formaldehyde.

Description

technical field [0001] The invention relates to a formaldehyde-resistant waterborne acrylic wood paint composition. Background technique [0002] Water-based wood lacquer is favored by people because it does not contain organic solvents, is safe, environmentally friendly and healthy, and has been successfully developed and put into the market in large quantities to meet people's decoration and decoration needs. Among them, water-based acrylic wood paint has better gloss and color retention properties. However, poor-quality wood, furniture, and paints will contain formaldehyde, and formaldehyde has been considered the biggest killer in the process of home decoration and decoration. The formaldehyde released into the air not only affects the air quality, but also seriously affects people's health, especially the elderly, children and patients with poor resistance, and the release period is as long as ten years. Therefore, the coatings industry adopts various new technologies...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/12C09D133/00
Inventor 杨少武陈春连刘祥艾小芳
Owner 江苏大象东亚制漆有限公司
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