The antibacterial agents used in medical multi-layer boards mainly include inorganic antibacterial agents (such as silver ions, zinc ions, copper ions and their oxides) and organic antibacterial agents (such as pyridinylguanidines, quaternary ammonium salts). Their mechanism of action is to inhibit bacteria by destroying their cell structure or metabolic processes, and they need to meet the requirements of medical scenarios such as high efficiency, long-lasting effect, and safety. The following is an introduction to the antibacterial agents used in medical multi-layer boards:

The function of adding antibacterial and antifungal agents to PU polyurethane leather

In the fast-paced modern life, people's demands for clothing have gradually shifted from merely providing warmth and covering the body to pursuing functionality and health. Among them, the antibacterial and deodorizing function, which is directly related to the health and comfort experience of the wearer, has become an important development direction in the field of clothing fabrics. Antibacterial deodorizing auxiliaries, as the core material for achieving this function, are bringing revolutionary changes to the textile industry through continuous technological innovation.

It has good compatibility with water-based slurries (such as acrylate, polyvinyl alcohol, starch) and does not affect the viscosity, fluidity and other properties of the slurry. It is applicable to various processing techniques such as dip rolling, coating and spraying. Ii. Working Principle

Waterborne polyurethane coating antibacterial and antifungal agents are chemical additives added to waterborne polyurethane coatings to inhibit or kill bacteria, mold and other microorganisms, prevent the coating from moldy and deteriorating, and protect the coating and substrate from microbial erosion. This type of additive achieves anti-mold and antibacterial effects by disrupting the cellular structure of microorganisms, interfering with metabolic processes, or forming protective films. Its core functions, common types, and practical applications are as follows

Wristbands and watch straps, as close-fitting items that are in long-term contact with the skin and prone to sweat and environmental moisture, are high-frequency scenarios for the growth of bacteria and mold (for instance, the oils and dander in sweat provide nutrients for microorganisms, and a humid environment accelerates the reproduction of mold, which may lead to skin discomfort, unpleasant odors or mold growth of materials).

Disposable tableware: After adding antibacterial and antifungal agents to foaming materials such as polystyrene foam board (EPS), it can inhibit the growth of microorganisms caused by food residues, extend the shelf life of tableware, and at the same time reduce the risk of material degradation caused by mold erosion. Packaging field

Zinc pyrithione (ZPT) has a good antibacterial effect on cat litter. Its antibacterial and antifungal properties can effectively inhibit the growth of bacteria and mold in cat litter, thereby reducing odor and the risk of urinary tract diseases in cats.