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Super matte outer wall flat paint and preparation method thereof

An exterior wall, flat coating technology, applied in coatings, conductive coatings, paints containing biocides, etc., can solve the problems of unstable storage, easy settling, easy to generate a large amount of dust, etc., and achieve good long-term weather resistance and gloss retention. Excellent color retention, outstanding yellowing resistance, and good color retention

Active Publication Date: 2019-05-24
广东巴德富新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the preparation and production of this kind of coating, it is usually necessary to make the matting powder into a slurry before use, which invisibly complicates the process and increases the production cost. At the same time, the matting powder is prone to generate a lot of dust during use, which not only affects the environment , but also easily inhaled into the human body to affect the health
In addition, the matt paint made of matting powder usually has disadvantages such as unstable storage and easy settlement, which cause certain difficulties for transportation and storage

Method used

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  • Super matte outer wall flat paint and preparation method thereof
  • Super matte outer wall flat paint and preparation method thereof
  • Super matte outer wall flat paint and preparation method thereof

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preparation example Construction

[0043] In addition, the present invention also provides a kind of preparation method of described ultra-matte exterior wall flat paint, comprising the following steps:

[0044] 1) Weigh the amount of water in the formula, add cellulose, and disperse at a speed of 200-400r / min for 2-5min;

[0045] 2) Add multifunctional additives in the formula amount, increase the dispersion speed to 500-1000r / min, and disperse for 5 minutes to make the system uniformly dispersed;

[0046] 3) Add the formula amount of dispersant, wetting agent and defoamer in sequence, and maintain the dispersion speed of 500-1000r / min for 10-15min;

[0047] 4) Add heavy calcium carbonate, titanium dioxide, and aluminum silicate in the prescribed amount in sequence, and maintain the speed of 1500-2000r / min to disperse for 20-40min;

[0048] 5) Reduce the speed to 1200~1500r / min, and continue to disperse for 5~10min;

[0049] 6) Add antifreeze, preservatives, and film-forming aids in sequence according to the...

Embodiment 1

[0053] A kind of ultra-matt exterior wall flat paint, comprising the following raw materials in parts by weight: 15 parts of water, 0.1 part of cellulose, 0.5 part of dispersant, 0.1 part of wetting agent, 0.1 part of defoamer, multifunctional auxiliary agent 0.05 parts, 15 parts of heavy calcium carbonate, 5 parts of titanium dioxide, 1 part of aluminum silicate, 1 part of covering polymer, 1 part of antifreeze, 0.05 parts of preservative, 1 part of coalescent, 10 parts of pure acrylic emulsion , 5 parts of pure acrylic emulsion, 0.1 part of thickener.

[0054] The cellulose is hydroxyethyl cellulose. The dispersant is ammonium polycarboxylate.

[0055] The wetting agent adopts APEO-free nonionic surfactant; the defoamer adopts mineral oil.

[0056] The multi-functional auxiliary agent adopts straight-chain alkanol amine; the covering polymer adopts Dow Chemical's Uchuang E, which is a polymer emulsion with a hollow structure.

[0057] Described antifreeze adopts propylene...

Embodiment 2

[0070] A kind of ultra-matt exterior wall flat paint, comprising the following raw materials in parts by weight: 25 parts of water, 0.3 part of cellulose, 0.7 part of dispersant, 0.3 part of wetting agent, 0.3 part of defoamer, multifunctional auxiliary agent 0.1 part, 25 parts of heavy calcium carbonate, 10 parts of titanium dioxide, 3 parts of aluminum silicate, 3 parts of covering polymer, 3 parts of antifreeze, 0.1 part of preservative, 3 parts of film-forming aid, 15 parts of pure acrylic emulsion , 10 parts of pure acrylic emulsion, 0.3 parts of thickener.

[0071] The cellulose is hydrophobically modified hydroxyethyl cellulose. The dispersant is a polymer of polycarboxylate sodium salt.

[0072] The wetting agent adopts APEO-free nonionic surfactant; the defoamer adopts organic silicon.

[0073] The multi-functional auxiliary agent adopts organic amine; the covering polymer adopts Dow Chemical's Uchuang E, which is a polymer emulsion with a hollow structure.

[0074...

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Abstract

The invention discloses super matte outer wall flat paint, which comprises the following raw materials in parts by weight: 15-35 parts of water, 0.1-0.5 part of cellulose, 0.5-1 part of a dispersing agent, 0.1-0.5 part of a wetting agent, 0.1-0.5 part of a defoaming agent, 0.05-0.2 part of a multifunctional auxiliary agent, 15-40 parts of heavy calcium carbonate, 5-20 parts of titanium dioxide, 1-5 parts of aluminum silicate, 1-5 parts of a covering polymer, 1-5 parts of an antifreezing agent, 0.05-0.2 part of a preservative, 1-5 parts of a film forming auxiliary agent, 10-20 parts of a pure acrylic emulsion I, 5-15 parts of a pure acrylic emulsion II and 0.1-0.5 part of a thickening agent. The super matte outer wall flat paint can achieve a super matte gloss effect on the premise of not adding matting powder, and simultaneously has excellent stain resistance, yellowing resistance, water permeability, storage stability and the like.

Description

technical field [0001] The invention relates to an ultra-matte flat paint for exterior walls and a preparation method thereof, belonging to the field of architectural paints. Background technique [0002] Water-based architectural coatings can be divided into matte, soft, silky, semi-gloss and high-gloss coatings from low to high according to the reflection of the dry film on light at a specific angle. Non-matte coatings with high gloss usually have bright colors, bright luster, etc., and are loved by consumers to a certain extent, and they also occupy a certain share in the coatings market. However, high-gloss glossy coatings will have serious reflections after film formation. Long-term exposure to this environment will cause certain damage to our eyes. With the improvement of living standards, people are more and more concerned about the safety of their environment. Safety, as well as considerations for one's own health, low-gloss paint with a soft appearance is highly re...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D5/24C09D5/16C09D7/61
Inventor 赵露露王亚飞欧广志
Owner 广东巴德富新材料有限公司
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