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Dry powder coating with lasting antibacterial and mildew-proof effects and preparation method thereof

An antibacterial and antifungal, dry powder coating technology, applied in powder coatings, antifouling/underwater coatings, coatings, etc., can solve the problems of loss of antibacterial activity, influence of bactericidal effect, strict use conditions, etc., to improve durability and stability Sexuality, good breathing and humidity control function, antibacterial and antifungal effect and stable effect

Active Publication Date: 2020-04-21
HUIZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a loading agent for antibacterial materials, in addition to high cost, silver ions are very unstable in aqueous solution, and are easily oxidized into silver simple substance or combined with other anions to lose antibacterial activity; in the prior art, zinc oxide and titanium dioxide are also used As inorganic antibacterial materials, zinc oxide and titanium dioxide have strong bactericidal ability and high bactericidal efficiency, but they need photocatalysis to work, and the use conditions are strict, and the bactericidal effect is affected by the use conditions

Method used

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  • Dry powder coating with lasting antibacterial and mildew-proof effects and preparation method thereof
  • Dry powder coating with lasting antibacterial and mildew-proof effects and preparation method thereof
  • Dry powder coating with lasting antibacterial and mildew-proof effects and preparation method thereof

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Embodiment

[0027] The following table is the formula table (unit: %) of three examples of dry powder coatings with long-lasting antibacterial and antifungal effects of the present invention.

[0028] components Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 shell powder 40% 45% 50% 40% 40% 40% lime 20 15 10 20 20 20 Inorganic antifungal and antibacterial agent A 10%, its copper ion content is 9% / 7%, its copper ion content is 7% 14%, its copper ion content is 8.5% / 7%, its copper ion content is 8.5% Inorganic antifungal and antibacterial agent B / 15%, its copper ion content is 15% 8%, its copper ion content is 12% / 14%, its copper ion content is 13% 7%, its copper ion content is 13% Titanium dioxide 20 15 10 15 15 15 Hydroxyethyl cellulose 0.4 0.5 0.6 0.5 0.5 0.5 Redispersible rubber powder 9.6 9.5 14.4 10.5 10.5 10.5。

[0029] The preparation method of the inorga...

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Abstract

The invention belongs to the technical field of dry powder coatings. The invention discloses a dry powder coating with lasting antibacterial and mildew-proof effects. The dry powder coating comprisesthe following components in percentage by weight: 40-50% of shell powder, 10-20% of lime, 10-15% of an inorganic antibacterial and mildew-proof agent, 10-20% of titanium dioxide, 0.4-0.6% of hydroxyethyl cellulose and 5-15% of redispersible rubber powder. The dry powder coating disclosed by the invention has efficient and lasting antibacterial and mildew-proof capabilities, is enhanced in antibacterial and mildew-proof effects after meeting water, is safe and environment-friendly, does not contain VOC, has the functions of adsorbing and decomposing harmful gas, realizing air permeability and regulating humidity, is suitable for various places, and has the antibacterial and mildew-proof capabilities which are not influenced by the environment.

Description

technical field [0001] The invention belongs to the technical field of dry powder coatings, and relates to a dry powder coating with long-lasting antibacterial and antifungal effects and a preparation method thereof. Background technique [0002] In humid areas, harmful bacteria and molds are easy to breed on the surface of wall coatings, endangering human health. Most of the existing antibacterial and antifungal coatings use organic antibacterial materials, but their stability and heat resistance are poor, they are easy to decompose, their service life is short, and some of them have toxic side effects and even cause cancer. Among the existing inorganic antibacterial agents, silver ions, copper ions and zinc ions are the most widely used, and their antibacterial activities are silver ions > copper ions > zinc ions. Silver ion has become the dominant metal ion antibacterial agent because of its strong antibacterial activity. However, as a loading agent for antibacter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/14C09D5/03
CPCC09D1/00C09D5/14C09D5/03
Inventor 郑钊豪唐伟东李雅洁吴梓浩洪创斌
Owner HUIZHOU UNIV
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