What are mildew preventatives? — Guangyuan Ruifeng New Materials

Category: Anti-mildew and antibacterial agent

Release Time: 2020-07-10

Summary: Mildewcides are a class of high-molecular-weight material additives that can inhibit the growth and kill mildew, protecting high-molecular-weight materials from fungal erosion and maintaining good appearance and physical and mechanical properties.

Mildewcides are a class of high-molecular-weight material additives that can inhibit the growth and kill mildew, protecting high-molecular-weight materials from fungal erosion and maintaining good appearance and physical and mechanical properties.

Mildewcides can be divided into three categories: organic, inorganic, and natural. Commonly used organic mildewcides include: diphenyl, orthophenylphenol, 2-pyridinethiol-1-zinc oxide, etc. Commonly used inorganic mildewcides include: ammonium persulfate, calcium phosphate, zinc ions, silver ions, copper ion compounds, etc. Natural mildewcides include: mustard extract, mugwort, etc.

There are currently more than 500 types of mildewcides. Mildewcides used in food, fruits, feed, and cosmetics must not be harmful to humans and animals, have a long shelf life, and have a broad spectrum against mildew. Mildewcides used in coatings and adhesives require good dispersibility and a long shelf life. Mildewcides sprayed or brushed on the edges of bathrooms, plastic doors and windows, etc., require water insolubility and good weather resistance. Generally speaking, organic mildewcides have stronger mildew-proofing ability than inorganic mildewcides.

The film-forming substances of coatings are composed of various natural and synthetic high-molecular compounds, which are subject to the destructive effects of environmental factors such as oxygen, heat, light, and chemical corrosives, and are also subject to the destruction of various organisms such as mildew. When coatings are contaminated by microorganisms, phenomena such as decreased viscosity, pigment sedimentation, odor generation, gas generation, container expansion, pH drift, and system destruction occur, which is called spoilage. In solvent-based coatings, the problem of spoilage is not prominent. Mildew erosion of coatings causes discoloration, stickiness, perforation, destruction, and peeling of the coatings, resulting in loss of adhesion, affecting the protective performance and cleanliness and appearance of the materials, reducing mechanical properties, shortening service life, and causing environmental health hazards.

The natural high-molecular materials used in coatings contain casein, soybean protein, alginate, starch, natural rubber, cellulose derivatives, fats, etc., which can be absorbed by mildew and are easily damaged by mildew. Most synthetic high-molecular materials have strong antibacterial properties, while some varieties (such as polyurethane, polyacrylate, polyvinyl acetate, polyvinyl alcohol, perchloroethylene, vinyl chloride, etc.) have poor bacterial resistance due to their structure and are easily decomposed by mildew.

Additives used in coatings (such as plasticizers, heat stabilizers, light stabilizers, organic fillers, colorants, etc.) are both nutrient sources for mildew and many varieties are also colonization substances. The addition of these additives is often the main cause of mildew damage to coatings and coatings. Dust and other substances adsorbed on the surface of the coating are also nutrient sources for mildew growth.

Guangan Ruifeng New Materials Co., Ltd. specializes in the production of mildewcides and has mature production processes to meet your needs.

Keywords: What are mildew preventatives? — Guangyuan Ruifeng New Materials

Related Solutions

Previous: How to Choose Anti-mildew and Antibacterial Agents (Part 1) - Guangyuan Ruifeng New Materials

Next: RFD-10, an antifungal and antibacterial agent, is a green and environmentally friendly material specifically designed for soft plastics - Guangyuan Ruifeng New Materials

Guangan///Guangyuan,Guoyuan///Guangyuan,Ganguan///Guangyuan

Sorry，当前栏目暂无内容!

您可以查看其他栏目或返回 首页

Sorry，The current column has no content!

You can view other columns or return Home