The antimicrobial agent is one type of preservative, and the effect of its use needs to be evaluated in combination with each formulation. There are generally two methods for evaluating low antimicrobial resistance, namely controlled laboratory evaluation and field field experiments. Controlled laboratory evaluation is used to quickly determine the ability to resist microbial attack. Through careful and controlled research, the degree to which polymers are susceptible to erosion can be quickly and easily detected.
With certain control measures, the rate of migration of antimicrobial agents, the "natural" erosion resistance of preservative-free plastics and the effects of different amounts of preservative production can be detected. In order to improve the antibacterial ability of injection molded products, there are mainly two problems to be considered. The first is the type of additives used in the formulation. Reducing the amount of additives known to be susceptible to microbial attack can give plastics a certain antibacterial capability.
The second is to choose an effective antimicrobial agent. In general, in order for the preservative to exert its effectiveness and prevent the growth of microorganisms on the surface of the polymer, a sufficient amount of the preservative should be allowed to migrate to the surface of the polymer. However, the speed of migration should not be too fast or ooze out of the polymer, so as not to reduce the service life of injection molded products.https://www.china-zhufengchem.com/