Antibacterial latex paint and preparation method thereof

A technology of latex paint and nano antibacterial agent, applied in the field of latex paint, can solve the problems of mold growth, poor craftsmanship, blackening and peeling off the paint film, and achieve the effect of inhibiting agglomeration, wide application field and good weather resistance.

Pending Publication Date: 2020-08-07
黄俊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some inferior architectural coatings, although they are called latex paints, do not use the above-mentioned emulsions at all, but use chemical raw materials such as polyvinyl alcohol, polyvinyl formal, and even starch as binders. It is polyvinyl formal, which often contains a large amount of free formaldehyde due to the unqualified synthesi

Method used

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  • Antibacterial latex paint and preparation method thereof
  • Antibacterial latex paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1:

[0021] This embodiment provides an antibacterial latex paint, the latex paint comprising the following parts by weight: 100 parts of water, 9 parts of hydroxyethyl cellulose, 100 parts of modified acrylic emulsion, 27 parts of alumina modified nano titanium dioxide, ZnO w 7 parts of nano antibacterial agent, 30 parts of nano silicon dioxide, 4 parts of dispersant, 0.2 part of polydimethylsiloxane, 1 part of propylene glycol methyl ether acetate.

[0022] The modified acrylic emulsion is an organic fluorine modified acrylic emulsion, which is specifically obtained by copolymerizing the following parts by mass of monomers: 24 parts of methyl methacrylate, 42 parts of butyl acrylate, 12 parts of methacrylic acid, and methacrylic acid 6 parts of hexafluorobutyl ester;

[0023] The alumina modified nano-titania is made of TiCl 4 , Al 2 (SO 4 ) 3 As raw material, Al prepared by co-precipitation method 2 O 3 / TiO 2 Nanoparticle

[0024] The average particle size of the n...

Example Embodiment

[0033] Example 2:

[0034] This embodiment provides an antibacterial latex paint. The latex paint includes the following parts by weight: 100 parts of water, 8 parts of hydroxyethyl cellulose, 90 parts of modified acrylic emulsion, 30 parts of alumina-modified nano titanium dioxide, ZnO w 7 parts of nano antibacterial agent, 26 parts of nano silicon dioxide, 2 parts of dispersant, 0.1 part of ethylene glycol siloxane, and 1 part of propylene glycol methyl ether acetate.

[0035] The modified acrylic emulsion is an organic fluorine modified acrylic emulsion, and the specific ratio is the same as in Example 1;

[0036] The alumina-modified nano-titania is the same as in Example 1;

[0037] The average particle size of the nano-silica is 24 nm;

[0038] ZnO w The nano antibacterial agent has a four-needle whisker structure;

[0039] The dispersant is a composite of sodium lauryl sulfate and 1-butyl-3-methylimidazole tetrafluoroborate, and the mass ratio of the two is 1:0.4.

[0040] The pre...

Example Embodiment

[0041] Example 3:

[0042] This embodiment provides an antibacterial latex paint. The latex paint includes the following parts by weight: 100 parts of water, 12 parts of hydroxyethyl cellulose, 115 parts of modified acrylic emulsion, 38 parts of alumina modified nano titanium dioxide, ZnO w 8 parts of nano antibacterial agent, 36 parts of nano silicon dioxide, 5 parts of dispersant, 0.3 parts of fluorosiloxane, and 2 parts of diethylene glycol butyl ether.

[0043] The modified acrylic emulsion is an organic fluorine modified acrylic emulsion, and the specific ratio is the same as in Example 1;

[0044] The alumina-modified nano-titania is the same as in Example 1;

[0045] The average particle size of the nano-silica is 17 nm;

[0046] ZnO w The nano antibacterial agent has a four-needle whisker structure;

[0047] The dispersant is a composite of sodium lauryl sulfate and 1-butyl-3-methylimidazole tetrafluoroborate, and the mass ratio of the two is 1:0.6;

[0048] The preparation metho...

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Abstract

The invention provides antibacterial latex paint. The latex paint is prepared from the following components, by weight: 100 parts of water, 8-13 parts of hydroxyethyl cellulose, 80-120 parts of modified acrylic emulsion, 25-40 parts of aluminum oxide modified nano titanium dioxide, 5-8 parts of a ZnOw nano antibacterial agent, 25-40 parts of nano silicon dioxide, 1-5 parts of a dispersing agent, 0.1-0.3 part of a defoaming agent and 0.5-3 parts of a coalescing agent. The antibacterial latex paint has the beneficial effects that (1), through the modification of the composite functional nano filler, the agglomeration of the nano antibacterial agent is effectively inhibited, and the antibacterial effect is improved; (2), due to the organic-fluorine-silicon-modified acrylic emulsion, the filmforming efficiency and quality are improved, and the stain resistance and weather resistance are improved; (3), an organic antibacterial agent is not used, so that the method is more environment-friendly; and (4), the emulsion paint prepared by the invention is simple to construct, smooth in paint surface, good in weather resistance and wide in application field.

Description

technical field [0001] The invention belongs to the technical field of latex paint, and in particular relates to an antibacterial latex paint and a preparation method thereof. Background technique [0002] Keeping the environment clean and pollution-free is a practical way to prevent bacteria and viruses from multiplying and preventing them from infecting humans. Using antibacterial materials is the simplest and most effective way to achieve a clean and pollution-free environment. [0003] Latex paint is a water-dispersible paint. It is based on synthetic resin emulsion, and the filler is refined by adding various additives after grinding and dispersing. Latex paint has many advantages that are different from traditional wall paints, such as easy to paint, fast drying, water-resistant paint film, and good scrub resistance. Latex paint is composed of emulsion, pigments, fillers, additives, fungicides and water. Some inferior architectural coatings, although they are called ...

Claims

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Application Information

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IPC IPC(8): C09D133/08C09D5/02C09D5/14C09D5/16C09D7/61
CPCC08K2003/2227C08K2003/2241C08K2201/003C08K2201/011C09D5/024C09D5/025C09D5/14C09D5/1668C09D5/1687C09D143/04C08K13/04C08K3/22C08K3/36C08K7/08
Inventor 不公告发明人
Owner 黄俊
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