High-efficiency environment-friendly antibacterial mould-proof inorganic composite nano paint and preparation method thereof

An inorganic composite, antibacterial and antifungal technology, which is applied in antifouling/underwater coatings, coatings, latex paints, etc., can solve the problems of large specific surface area and difficulty in effective dispersion of nanoparticles, achieve easy dispersion, and improve anti-aging performance , the effect of preventing carbonization

Active Publication Date: 2012-04-18
广东腐蚀科学与技术创新研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Inorganic composite nano-antibacterial coatings have the advantages of being safe and non-toxic to the human body, strong antibacterial and anti-mildew ability, wide antibacterial range, small odor, light appearance color, good thermal stability, washable, long storage

Method used

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  • High-efficiency environment-friendly antibacterial mould-proof inorganic composite nano paint and preparation method thereof
  • High-efficiency environment-friendly antibacterial mould-proof inorganic composite nano paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0059] Example 1

[0060] Weigh 840g of deionized water in a 2000ml beaker, stir at a high speed under the condition of 1000rpm with a high-speed disperser, add a polymer dispersant (in this embodiment, the polymer dispersant adopts Disperbyk192 of German Byk Chemical Company) 60g, add respectively 70g of magnesium oxide powder, 20g of zinc oxide powder and 10g of titanium oxide powder with an average particle size of 50nm were dispersed for 60 minutes, and the mixture was subjected to planetary ball milling for 5 hours at a speed of 300rpm to form a highly dispersed inorganic composite nano concentrated slurry. According to the original ratio, wherein the weight ratio of nano-magnesium oxide is 7%, the weight ratio of nano-zinc oxide is 2%, the weight ratio of nano-titanium oxide is 1%, the total weight ratio of composite powder is 10%, and the weight ratio of polymer dispersant is 6%.

[0061] The inorganic composite nano-concentrated slurry is added into nutrient broth med...

Example Embodiment

[0063] Example 2

[0064] Weigh 700g of deionized water in a 2000ml beaker, stir at a high speed under the condition of 2000rpm with a high-speed disperser, add a polymer dispersant (in this embodiment, the polymer dispersant adopts Disperbyk192 of German Byk Chemical Company) 100g, add respectively 40g of magnesium oxide powder, 120g of zinc oxide powder and 40g of titanium oxide powder with an average particle size of 60nm were dispersed for 120min, and the mixture was subjected to planetary ball milling for 10h at a ball mill speed of 500rpm to form a highly dispersed inorganic composite nano concentrated slurry. According to the original proportion, wherein the weight ratio of nano-magnesium oxide is 4%, the weight ratio of nano-zinc oxide is 12%, the weight ratio of nano-titanium oxide is 4%, the total weight ratio of composite powder is 20%, and the weight ratio of polymer dispersant is 10%.

[0065] The inorganic composite nano-concentrated slurry is added into nutrien...

Example Embodiment

[0067] Example 3

[0068] The difference from Example 1 is:

[0069] Take by weighing 800g of deionized water in a 2000ml beaker, stir at a high speed under the condition of 2500rpm with a high-speed disperser, add a polymer dispersant (in this embodiment, the polymer dispersant adopts Disperbyk192 of German Byk Chemical Company) 80g, add respectively 84g of magnesium oxide powder, 24g of zinc oxide powder, 10.8g of titanium oxide powder and 1.2g of copper oxide powder with an average particle size of 40nm, dispersed for 100min, the mixture was subjected to planetary ball milling for 8h, and the speed of the ball mill was 600rpm to form a highly dispersed inorganic composite nano concentration pulp. According to the original ratio, wherein the weight ratio of nano-magnesium oxide is 8.4%, the weight ratio of nano-zinc oxide is 2.4%, the weight ratio of nano-titanium oxide is 1.08%, the weight ratio of nano-copper oxide is 0.12%, and the total weight ratio of composite powder ...

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Abstract

The invention relates to a paint technology, an environment-friendly technology and an antibacterial mould-proof technology, in particular to high-efficiency environment-friendly antibacterial mould-proof inorganic composite nano paint and a preparation method thereof. The high-efficiency environment-friendly antibacterial mould-proof inorganic composite nano paint comprises the following components in percentage by weight: 0.5 to 5 percent of wetting dispersant, 0.01 to 20 percent of inorganic composite nano antibacterial agent concentrated pulp, 0.5 to 10 percent of hydrophobing agent, 0.5 to 10 percent of anionic powder, 0.5 to 8 percent of film-forming aid, 0.1 to 2 percent of anti-settling agent, 0.8 to 10 percent of antifreezing agent, 0.1 to 3 percent of defoaming agent, 4 to 30 percent of pigment, 0 to 30 percent of filler, 15 to 45 percent of emulsion, 0.1 to 4 percent of thickening agent, 0.1 to 3 percent of flatting agent, 0 to 3 percent of pH regulator and 0.5 to 45 percent of water. The high-efficiency environment-friendly antibacterial mould-proof inorganic composite nano paint is mainly prepared by adding the inorganic composite nano antibacterial agent into the basic materials, so that the paint has the coating characteristic of high performance, is low is cost, and has a function of purifying air, can eliminate harmful gas volatile organic compounds (VOC), formaldehyde and the like and also has a durable and high-efficiency antibacterial mould-proof function, so that the sterilizing rate within 6 hours reaches 100 percent and the mould-proof grade reaches the first grade. By the high-efficiency environment-friendly antibacterial mould-proof inorganic composite nano paint and the preparation method thereof, self-cleaning performance, hydrophobicity, scrubbing resistance, dirt resistance and weather resistance of the coating are improved; and the high-efficiency and durable antibacterial and mould-proof effect is achieved.

Description

technical field [0001] The invention relates to coating technology, environmental protection technology and antibacterial and anti-mildew technology, in particular to a high-efficiency environmental-friendly anti-bacterial and anti-mildew inorganic composite nano coating and a preparation method thereof. Background technique [0002] Latex paint is a kind of water-based paint, which contains very low organic volatile matter, meets the requirements of environmental protection, and belongs to "green paint". It has been greatly developed since the latex paint was produced, and people continue to find ways to improve the performance of latex paint from different aspects. The emergence of nano-materials has brought opportunities for the improvement of the performance of latex paints. For example, the Chinese invention patent CN1277234A discloses an architectural coating containing 0.5-1.5% silicon-based oxides, which improves the suspension, bonding strength, and aging resistance...

Claims

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Application Information

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IPC IPC(8): C09D5/14C09D5/02C09D133/04C09D133/00
Inventor 吴进怡柴柯
Owner 广东腐蚀科学与技术创新研究院
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