Preparation method of antibiotic anti-fungus agent for building surface

Abstract

The invention relates to a method for preparing an antibacterial and antifungal agent on the surface of buildings, adding film-forming aids, nano-TiO2, dispersants, emulsifiers, multifunctional auxiliary agents and antifungal agents to coating emulsions for architectural coatings. The weight percentage of each component is controlled as follows: 20%-90% of coating emulsion, 0.1%-5% of nano-TiO2, 0.1%-10% of film-forming aid, and 0.05%-0.5% of dispersant , 0.1% to 1% emulsifier, 0.1% to 1% multifunctional additive, 0.1% to 10% anti-mold additive, and 5% to 70% water. The antibacterial and antifungal agent prepared by the present invention can be sprayed on the surface of buildings at any time to renew the catalytic antibacterial and antifungal coating. The catalysis and antifungal agent have synergistic bactericidal and antifungal effects, can remove volatile gases such as formaldehyde VOC, and have a simple preparation method, few additives, and low production cost.

Description

technical field [0001] The invention relates to a preparation method of an antibacterial and antifungal agent, in particular to the preparation of an antibacterial and antifungal agent containing nano-titanium dioxide. The obtained antimicrobial and antifungal agent can be used for antibacterial and antifungal of building interior and exterior walls and deodorization. Background technique [0002] Nano-TiO2 is a non-eluting antibacterial agent based on photocatalytic reaction to decompose organic matter and has antibacterial effect. It has good chemical stability, non-toxicity, low heavy metal content, broad-spectrum and long-term antibacterial properties. The more widely used in people's daily life. Among them, in the aspect of building interior and exterior wall coatings, there are many antibacterial coatings prepared by using nano-titanium dioxide. The components include: film-forming agent silicon-acrylic emulsion 20% to 25%, nitrogen-doped nano-TiO 2 20%~10%, ordinar...

AI Technical Summary

Problems solved by technology

Obtain a composite antibacterial film with a thickness of 100-400 nanometers, which has good antibacterial performance, but the film-forming process of this product is complicated, it is not easy to update, and generally only has antibacterial function, no deodorizing effect

[0004] In the 200610089126.6 patent application, the applicant disclosed a compound antibacterial and antifungal agent of titanium dioxide and polysaccharides, which can be used to directly spray the surface of general articles to form a film for antibacterial and antifungal, but for interior and exterior walls and other building surfaces, Due to the need for certain adhesion and bonding strength, the antifungal agent cannot be used for direct spraying on the surface of buildings

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