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Mildewproof antibacterial paint

An anti-mildew and antibacterial and coating technology, applied in the field of coatings, can solve the problems of application limitation, discoloration, easy to be oxidized, etc., and achieve the effects of improving anti-mildew and antibacterial performance, strong adsorption function, and improving safety performance.

Inactive Publication Date: 2017-01-25
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are three main categories of antibacterial agents for coatings: natural antibacterial agents, organic antibacterial agents and inorganic antibacterial agents. Among them, nano-silver is the most prominent among inorganic antibacterial agents. Due to the surface effect, its antibacterial ability is 200 times that of micron-sized silver particles. Above, the antibacterial performance is also far greater than the traditional silver ion fungicides, but, because of its active nature, it is easily oxidized in the air, causing discoloration, and its application is greatly limited. Therefore, there is an urgent need for a stable and good antibacterial agent. Effective anti-mildew and anti-bacterial coating

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A mildew-proof and antibacterial coating, the components contained in it and the mass percentages of each composition are as follows:

[0019] 15% water; 25% acrylic acid copolymer emulsion; 2% propylene glycol; 7% nano-titanium dioxide; 4% nano-zinc oxide; 9% medical stone with 325 mesh; 8% diatomite with 325 mesh; %; Mica powder 5%; Hydroxyethyl cellulose 1%; Lignin 9%; Organobentonite 0.1%; Mixture of solutions 0.2%; polyacrylic acid 0.1%.

Embodiment 2

[0021] A mildew-proof and antibacterial coating, the components contained in it and the mass percentages of each composition are as follows:

[0022] 16% of water; 28% of acrylic acid copolymer emulsion; 2.5% of propylene glycol; 8% of nano-titanium dioxide; 5.5% of nano-zinc oxide; 10% of medical stone with a mesh number of 500; %; Mica powder 6%; Hydroxyethyl cellulose 1.25%; Lignin 9.5%; Organobentonite 0.2%; The mixture of BK-887A and polyacrylic acid is 0.2%; the mixture of BK-887A and polyacrylic acid is 0.2%.

Embodiment 3

[0024] A mildew-proof and antibacterial coating, the components contained in it and the mass percentages of each composition are as follows:

[0025] 18% of water; 32% of acrylic acid copolymer emulsion; 2.5% of propylene glycol; 10% of nano-titanium dioxide; 7% of nano-zinc oxide; 11% of medical stone with a mesh number of 600; %; Mica powder 6%; Hydroxyethyl cellulose 1.25%; Lignin 9.5%; Organobentonite 0.2%; The mixture of WT-105A and BK-887A is 0.25%; the mixture of WT-105A and BK-887A is 0.2%.

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Abstract

The invention relates to an antifungal and antibacterial coating, which comprises the following components: water, acrylic acid copolymer emulsion, propylene glycol, nano-titanium dioxide, nano-zinc oxide, medical stone, diatomaceous earth, talcum powder, mica powder, and hydroxyethyl cellulose , lignin, anti-sedimentation agent, leveling agent, dispersant, defoamer, thickener. The coating has excellent anti-mildew and antibacterial performance and green environmental protection performance. Among them, the added nano-titanium dioxide directly attacks the bacterial cells through photocatalysis, causing the organic matter in the bacterial cells to degrade, achieving the effect of sterilization, and also has a self-cleaning effect; The added nano-zinc oxide achieves the purpose of sterilization through its strong oxidizing property; the added medical stone and diatomaceous earth have strong adsorption functions, and when used in conjunction with nano-titanium dioxide and nano-zinc dioxide, it can not only improve the anti-mold and anti-bacterial properties of the coating It can also improve the safety performance of the coating and meet the requirements of green environmental protection.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to an anti-mildew and antibacterial coating. Background technique [0002] The organic components in paints such as latex paints, water-based paints and oil-based resin topcoats provide a rich material basis for the growth and reproduction of microorganisms. Microbes use these nutrients to undergo biodegradation, biochemical synthesis, metabolism in the body, obtain energy, and transform them into various living substances of their own. The enzymes and organic acids produced in this process can make the organic matter in the coating and the substance after film formation Continuously damaged, with the continuous reproduction of microorganisms, the degree of damage to the paint is continuously accelerated, and its viscosity decreases, demulsification, delamination, sedimentation, corruption, odor, and loss of use value. After the paint film is attacked by microorganisms, the film...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D197/00C09D5/14C09D5/16C09D7/12
CPCC09D133/00C08K2201/011C08L2205/035C09D5/14C09D5/1618C09D7/61C09D7/62C09D7/65C09D7/70
Inventor 石彪陆文强邓云生冯双龙周大明梁丽媛孙萌
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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