Home > Knowledge > Content

Antibacterial ability and important properties of antimicrobial agents

Mar 14, 2019

In order to improve the antimicrobial agents of the plastic during the operation of the antimicrobial agent, there are mainly two problems in the operation, and the first is the type of the auxiliary used in the formulation. Reducing the amount of additives known to be susceptible to microbial attack can give plastics a certain antibacterial capability. Plasticizers are used to improve the flexibility of PVC. Considering its antibacterial properties when using plasticizers, it will help to reduce the degree of plastic corrosion.

Some of the plasticizers in the operation of the antimicrobial agents, such as its phthalates, polyesters, citrates and oxygenated hydrocarbons, only slightly increase the corrosion resistance of the soft polyvinyl chloride; Diesters, sebacates, and pentaerythritol esters have moderate levels of ablation, and sebacates, epoxidized fats (bean oil and tall oil), and glycolates are similar. . The use of non-migratory plasticizers such as tris-toluene phosphate and polyester also helps to reduce the nutrients on which the microbes depend on the surface of the polymer.

The antimicrobial agents is effective in the use of a preservative, and in order to allow the preservative to function effectively to prevent the growth of microorganisms on the surface of the polymer during operation, the preservative should be allowed to migrate to the surface of the polymer in an amount sufficient. However, the speed of migration should not be too fast or ooze out of the polymer to avoid reducing the service life of plastic products. It is also important that a certain amount of preservative does not migrate to play its role.