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Antibacterial anti-mildew self-cleaning nanometer antifouling coating material, preparation method and applications thereof

A technology for antibacterial, antifungal and antifouling coatings, applied in antifouling/underwater coatings, polyurea/polyurethane coatings, coatings, etc. , limited antibacterial and antifungal effects, and achieve excellent self-cleaning performance, long antibacterial cycle, and improved antibacterial and antifungal performance

Active Publication Date: 2019-06-04
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, adding a single type of certain antibacterial agent to the coating often does not achieve the desired antibacterial effect
If inorganic antibacterial agents are used, the coating has a good antibacterial or anti-mildew effect, but the metal ions will gradually lose, resulting in poor anti-bacterial and anti-mildew effects of the coating, and it is difficult to achieve both anti-bacterial and anti-mildew; if organic anti-bacterial agents are used , the antibacterial and anti-mildew effect of the coating is quick, but the disadvantage is that the anti-bacterial and anti-mildew effect is limited
In addition, the accumulation of pollutants such as dust and bacterial corpses on the surface of the coating will greatly reduce the antibacterial and antifungal properties of the coating.

Method used

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  • Antibacterial anti-mildew self-cleaning nanometer antifouling coating material, preparation method and applications thereof
  • Antibacterial anti-mildew self-cleaning nanometer antifouling coating material, preparation method and applications thereof
  • Antibacterial anti-mildew self-cleaning nanometer antifouling coating material, preparation method and applications thereof

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preparation example Construction

[0045] Another aspect of the embodiments of the present invention provides the preparation method of the aforementioned antibacterial, antifungal, self-cleaning nano-antifouling coating, which includes:

[0046] Disperse and mix organic fluorine resin and diluent evenly, then add organic-inorganic composite nano-antibacterial agent, nano-ceramic particles, nano-titanium dioxide, pigments and fillers, anti-sedimentation agent, dispersant and leveling agent, and mix evenly to form component A;

[0047] The A component and the B component curing agent are uniformly mixed to form an antibacterial, antifungal, self-cleaning nano antifouling coating.

[0048] In some specific embodiments, the preparation method may include:

[0049] Disperse and mix organic fluorine resin and diluent evenly, then add organic-inorganic composite nano-antibacterial agent, nano-ceramic particles, nano-titanium dioxide, pigments and fillers, anti-sedimentation agent, dispersant and leveling agent, stir ...

Embodiment 1

[0072] The present embodiment provides an antibacterial, mildew-proof, self-cleaning nano-antifouling coating (referred to as nano-antifouling coating), and its preparation method comprises:

[0073] (1) According to mass percentage (if not specified below, all refer to the mass percentage content of each component in A component), respectively take 40% of F-510 organic fluororesin, 10% of organic-inorganic composite nano antibacterial agent (nano Composition of silver and carboxybetaine type zwitterionic polymer with a mass ratio of 1:10), nano-ceramic particles 10% (a composition of nano-alumina and nano-zirconia with a mass ratio of 1:10), anatase type Nano titanium dioxide 5%, titanium dioxide 20%, organic bentonite 1%, dispersant 1%, leveling agent 1% and xylene 12%. Disperse and mix uniformly in a high-speed dispersing tank to prepare component A; take HDI as component B of isocyanate curing agent;

[0074] (2) Weigh 50% of component A and 50% of component B in the disp...

Embodiment 2

[0077] The present embodiment provides an antibacterial, mildew-proof, self-cleaning nano-antifouling coating (referred to as nano-antifouling coating), and its preparation method comprises:

[0078] (1) According to mass percentage (if not specified below, all refer to the mass percentage content of each component in A component), respectively take 50% of HY-F organic fluorosilicone resin and 1% of organic-inorganic composite nano-antibacterial agent ( Nano-silver and sulfobetaine-type zwitterionic polymer with a mass ratio of 0.1:1), nano-ceramic particles 5% (a composition of nano-alumina and nano-zirconia with a mass ratio of 0.1:1), anatase Type nano titanium dioxide 10%, talc powder 17%, anti-sedimentation agent 5%, dispersant 5%, silicone leveling agent 2% and n-butyl acetate 5%. Disperse and mix uniformly in a high-speed dispersing tank to prepare component A; take HDI three concrete as component B of isocyanate curing agent;

[0079] (2) Weigh 91% of A component and ...

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Abstract

The invention discloses an antibacterial anti-mildew self-cleaning nanometer antifouling coating material, a preparation method and applications thereof, wherein the coating material comprises a component A and a component B, the component A contains an organofluorine resin, an organic-inorganic composite nanometer antibacterial agent, a nanometer ceramic particle, nanometer titanium dioxide, a pigment filler, an anti-precipitating agent, a dispersing agent, a leveling agent and a diluent, and the component B comprises a curing agent. According to the present invention, the coating material has advantages of excellent antibacterial and anti-mildew performance and excellent self-cleaning property; by combining the composite antibacterial agent comprising nanometer silver and a zwitterionicpolymer with nanometer titanium dioxide, the synergistic bactericidal effect can be achieved; by combining a low surface energy organofluorine resin and a nanometer material, the coating has advantages of super-strong hydrophobicity and super-strong oil stain resistance, can greatly reduce the contact area between water stains, dust and microbial bodies and the surface of the matrix, can easily achieve the rapid shedding of surface pollutants, and has excellent self-cleaning property.

Description

technical field [0001] The invention relates to a nano-coating, in particular to an antibacterial, mildew-proof, self-cleaning nano-antifouling coating, a preparation method and application thereof, and belongs to the technical field of nanomaterial preparation. Background technique [0002] Human survival and health are always threatened by various bacteria and viruses. According to the U.S. Centers for Disease Control and Prevention’s health care committee, 30 places in 35 households in the United States were swabbed for bacteria and measured by the number of bacteria per square inch. It was found that there were about 3.2 million bacteria on the toilet, and nearly 120,000 bacteria on the bathtub. There are more than 6,000 bacteria on the bucket handle in the bathroom, about 560,000 bacteria in the kitchen drainpipe, and nearly 130,000 bacteria in kitchen sponges and rags, most of which are harmful to human life and health. In addition, the mold growth caused by the humid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/14C09D5/16C09D7/61
Inventor 刘志雄王立平田澍蒲吉斌赵文杰
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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