Antimicrobial Equipment of Thermoplastics
Antimicrobial equipped polymers are used in many areas where as germ-free a surface as possible is required. Traditionally, antibacterial plastics are equipped with bio-stabilizers and antimicrobial additives. These active agents or additives kill viruses, bacteria, or fungi or inhibit their growth by releasing more or less toxic compounds. However, there are major drawbacks, such as developing resistances, a rapid decay of the effect, a concentration of pollutants, and the allergenic potential which restrict usage in the food industry or in medical engineering or make it altogether impossible.
Together with Munich Technical University, SKZ developed an antimicrobial plastic on the basis of titanium dioxide. The antimicrobial properties of the material developed are based on the photocatalytic activity of TiO2. In contrast to the usual TiO2 coatings, the nanoscaled additive was directly incorporated into the polymer matrix this time. The germ-reducing effect of nanocomposites on micro-organisms such as Eschericia coli (E. coli) could be proven by extensive microbiological tests.
The IGF project 399 ZN of the research association FSKZ was supported by AiF within the program for the promotion of industrial joint research and development (IGF) of the Federal Ministry of Economics and Energy. We kindly acknowledge the financial support.