UV weathering effect on antibacterial performance in silicone rubber compounds
Conference proceedings article
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Publication Details
Author list: Taptim K., Sombatsompop N.
Publisher: Trans Tech Publications
Publication year: 2012
Volume number: 410
Start page: 325
End page: 328
Number of pages: 4
ISBN: 9783037853160
ISSN: 1022-6680
eISSN: 1662-8985
Languages: English-Great Britain (EN-GB)
Abstract
Silicone rubber compounded with three different types of antibacterial agents: namely; nano-Ag colloids, Silver substituted Zeolite compound (SSZ) and 2-Hydroxypropyl-3-Piperazinyl-Quinoline Carboxylic Acid Methacrylate (HPQM) were prepared and changes in antibacterial performance were assessed before and after exposure to UV light at different aging times. Drop plate and halo tests were performed to study the antibacterial performance of silicone rubber compounds. The results indicated that antibacterial activity of silicone compound changed when the UV aging time was increased. The antibacterial activity of the rubber added with HPQM extremely decreased considered by the inhibition zone and %reductions of Staphylococcus aureus and Escherichia coli bacteria for any given contact times. On the other hand, the UV light did not affect the antibacterial activity of silicone rubber compounds added with nano-Ag colloids and SSZ agents.
Keywords
Silicone rubber, UV weathering Aging
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