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Waterborne Nano Polyacrylate Wood Coatings

A technology of polyacrylate and wood coatings, applied in the field of coatings, can solve the problems of not being able to completely replace solvent-based wood coatings, limitations in physical and chemical properties, and damage to human health, and achieve improved scratch resistance and good scratch resistance , Improve the effect of whiteness

Active Publication Date: 2017-01-11
CHENGDU ZHANCHEN PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Solvent-based wood coatings contain a large amount of harmful substances, seriously pollute the environment, damage human health, and waste resources
Due to the limitations of physical and chemical properties of existing water-based wood coatings, there is no technical basis for completely replacing solvent-based wood coatings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: water-based nano polyacrylate wood coating

[0030] Nano Acrylic Copolymer Emulsion 45%,

[0031] Nano Waterborne Polyurethane Dispersion 15%,

[0032] Defoamer 1 0.5%,

[0033] Defoamer 2 0.3%

[0034] Dispersant 1 1%,

[0035] Wetting agent 0.3%,

[0036] Leveling agent 0.2%,

[0037] Nano Titanium Dioxide 3%,

[0038] Titanium dioxide 16%,

[0039] Matting agent 0.8%,

[0040] Wax Dispersion, 3%,

[0041] Thickener 1 0.3%,

[0042] Thickener 2 0.4%,

[0043] Thickener 3 0.3%,

[0044] Coalescing aid 1 0.3%,

[0045] Coalescent 2 2.6%,

[0046] Coalescing aid 3 3%,

[0047] PH regulator 0.2%,

[0048] Deionized water 7.8%.

[0049] Production process: Add deionized water, thickener, defoamer, dispersant, and wetting agent in sequence → stir at medium speed for 5 minutes until uniform → add nano-titanium dioxide and titanium dioxide in sequence at low speed → stir at high speed for 15 minutes to sand Grind until the fineness is ≤20 micron...

Embodiment 2

[0051] Embodiment 2: water-based nano polyacrylate wood coating

[0052] Nano Acrylic Copolymer Emulsion 40%,

[0053] Nano Waterborne Polyurethane Dispersion 16%,

[0054] Defoamer 1 0.5%,

[0055] Defoamer 2 0.3%

[0056] Dispersant 1 1%,

[0057] Wetting agent 0.3%,

[0058] Leveling agent 0.2%,

[0059] Nano Titanium Dioxide 3%,

[0060] Titanium dioxide 20%,

[0061] Matting agent 0.8%,

[0062] Wax dispersion, 2%,

[0063] Thickener 1 0.5%,

[0064] Thickener 2 0.4%,

[0065] Thickener 3 0.3%,

[0066] Coalescing aid 1 0.3%,

[0067] Coalescent 2 2.6%,

[0068] Coalescing aid 3 3%,

[0069] PH regulator 0.2%,

[0070] Deionized water 8.6%.

[0071]Production process: Add deionized water, thickener, defoamer, dispersant, and wetting agent in sequence → stir at medium speed for 5 minutes until uniform → add nano-titanium dioxide and titanium dioxide in sequence at low speed → stir at high speed for 15 minutes to sand Grind to a fineness of ≤20 microns → ad...

Embodiment 3

[0073] Embodiment 3: water-based nano polyacrylate wood coating

[0074] Nano Acrylic Copolymer Emulsion 40%,

[0075] Nano Waterborne Polyurethane Dispersion 18%,

[0076] Defoamer 1 0.4%,

[0077] Defoamer 2 0.6%

[0078] Dispersant 1 1.5%,

[0079] Wetting agent 0.5%,

[0080] Leveling agent 0.2%,

[0081] Nano Titanium Dioxide 4%,

[0082] Titanium dioxide 17%,

[0083] Matting agent 0.8%,

[0084] Wax Dispersion, 4%,

[0085] Thickener 1 0.3%,

[0086] Thickener 2 0.5%,

[0087] Thickener 3 0.3%,

[0088] Coalescing aid 1 0.2%,

[0089] Coalescing aid 2 2%,

[0090] Coalescing aid 3 3%,

[0091] PH regulator 0.2%,

[0092] Deionized water 6.5%.

[0093] Production process: Add deionized water, thickener, defoamer, dispersant, and wetting agent in sequence → stir at medium speed for 5 minutes until uniform → add nano-titanium dioxide and titanium dioxide in sequence at low speed → stir at high speed for 15 minutes to sand Grind to a fineness of ≤20 microns...

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PUM

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Abstract

The invention discloses a water-based nano polyacrylate wood paint which is composed of the following raw materials in percentage by weight: 40-50% of nano acrylic acid copolymer emulsion, 15-25% of nano water-based polyurethane dispersion, 0.3-1% of defoaming agent 1, 0.2-0.8% of defoaming agent 2, 1-3% of dispersing agent, 0.3-0.5% of wetting agent, 0.2-0.5% of leveling agent, 3-5% of nano titanium dioxide, 16-20% of titanium white, 0.2-2% of matting agent, 1-5% of wax dispersion, 0.3-1% of thickener 1, 0.3-1% of thickener 2, 0.3-1% of thickener 3, 0.1-0.5% of film-forming assistant 1, 2-5% of film-forming assistant 2, 2-5% of film-forming assistant 3, 0.1-0.5% of pH regulator and 8-10% of deionized water, totaling 100%. The paint film has the advantages of favorable whiteness, favorable leveling property, smooth hand feeling and favorable anti-scratch effect; and the hardness can reach 2H scratch or so at 25 DEG C for 7 days, the impact resistance can reach 50 kg.cm, and the water resistance can reach 250 hours.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to a water-based nano polyacrylate wood coating. Background technique [0002] Solvent-based wood coatings contain a large amount of harmful substances, seriously pollute the environment, damage human health, and waste resources greatly. Existing water-based wood coatings do not have the technical basis to completely replace solvent-based wood coatings due to their limitations in physical and chemical properties. Compared with traditional wood coatings, there is still a certain gap. With the stricter restrictions on volatile organic compounds and toxic substances in various countries, as well as the development of water-based resins, formulation optimization and suitable additives, the market share of water-based paints will continue to grow. Improvement, the odorless and environmental protection of water-based wood lacquer itself also make this kind of products become the main trend of fut...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/12C09D175/04C09D7/12
CPCC08K2201/011C08K2201/014C08L2205/03C09D7/61C09D133/12C08L75/04C08L91/06C08K13/02C08K2003/2241
Inventor 刘智勇兰春风陈寿生
Owner CHENGDU ZHANCHEN PAINT