Explanation of the Mechanism of Action of New Science Series Coating Antimold Agents

Anti mold agents are a type of polymer material additive that can inhibit mold growth and kill mold, which can prevent polymer materials from fungal erosion and maintain good appearance and physical and mechanical properties. Whether it is water-based coating or solvent based coating, it is easy to be attacked by mold and algae in the environment, especially in the high temperature and humidity environment, causing discoloration of the coating film, Polymer degradation, etc., and losing its use value.

Coatings are contaminated by microorganisms, resulting in decreased viscosity, pigment deposition, odor, gas generation, container expansion, pH drift, and system damage, which is called spoilage. In solvent based coatings, the problem of corruption is not prominent. Mold erodes the coating, causing discoloration, stickiness, perforation, damage, and peeling, loss of adhesion, affecting the protective performance of the coating and the cleanliness and appearance of the material, reducing mechanical properties, shortening service life, and posing a threat to environmental hygiene.

The natural macromolecular materials used in the paint contain Casein, soybean protein, alginic acid, starch, natural gum, cellulose derivatives, fat and other substances that can be absorbed by mold, and are vulnerable to mold damage. Most synthetic polymer materials have strong antibacterial properties, while some varieties (such as polyurethane, polyacrylate, polyvinyl acetate, polyvinyl alcohol, perchloroethylene, vinylidene chloride, etc.) have poor bacterial resistance and are easily decomposed by mold due to their structure. The additives used in coatings (such as plasticizers, heat stabilizers, light stabilizers, organic fillers, colorants, etc.) are not only the source of nutrients for mold, but many varieties are also colonizing substances. The addition of these additives is often the main cause of bacterial damage to coatings and coatings. The dust adsorbed on the surface of the coating is also a nutrient source for the growth of mold.

Mechanism of action

Bacteria causing lotion and paint corruption, including flavobacterium odoratum, enterobacter aerogenes, pseudomonas, Escherichia coli, and fecal streptococcus; The main bacteria causing the film mildew are Aspergillus versicolor, Cladosporium cladosporium, Paecilomyces wannii, Penicillium purpureum, etc. Mold is a diverse group of microorganisms, distributed in soil, water, animals and plant life, or air, almost everywhere. Mold relies on absorbing nutrients from other objects to survive in a parasitic or saprophytic manner, secreting various enzymes that break down organic matter into easily digestible nutrients. As long as there is minimal nutrition, mold can grow and reproduce at an appropriate temperature (26-32 ℃) and relative humidity (>85%). The fungicidal effect of coating antifungal agents on fungi is achieved by entering the cell membrane of spores, hindering their germination or killing them. The toxic effects of mold inhibitors on mold include the following ways: eliminating or inhibiting the activity of various metabolic enzymes in mold cells; React with the amino or thiol groups of enzyme proteins to inhibit or disrupt their function; Inhibiting RNA synthesis during spore germination, thereby preventing spore germination; Accelerate the promotion of the phosphate oxidation-reduction system to disrupt cell function; Destroy the energy release system within mold cells; Inhibiting Electron transfer system and Transaminase system.

Epilogue

With the development of the coating industry and the progress of coating technology, the application field of coatings is gradually expanding, especially in the fields of light industrial appliances, building decoration, shipbuilding and aerospace, material anti-corrosion, and ocean development. The issue of corruption and mold formation in coatings and coatings is increasingly being valued, and research on coating mold inhibitors has been developed accordingly. The research and development trend of antifungal agents for coatings is to combine multiple antifungal agents, develop composite antifungal agents, achieve "1+1>2", improve antifungal and bactericidal performance, reduce toxic and harmful substances, overcome resistance, extend shelf life, have a wider range of applications, and save the development cost of new antifungal products. Develop more efficient, low toxicity, safe, and broad-spectrum mold inhibitors.

Both oil-based coatings and water-based coatings have corresponding systems of anti-mold agents. Customers can contact our company to discuss the application of anti-mold agents.

Nantong Boda Biochemical Co., Ltd. was founded in 2003. At the beginning of its establishment, it was committed to creating a technical enterprise that specializes in the production, manufacturing, and sales of various types of microbicides, preservatives, mold inhibitors, disinfectants, and other microbial inhibitory agents. With strong professional technical strength, scientific quality control methods, and a comprehensive customer service system as the backing, the company is widely used in cosmetics, washing products, wipes, paper making, fibers, coatings Sterilization, anti-corrosion, and mold prevention in fields such as adhesives, wood, leather, industrial water treatment, and industrial additives.