PREPARATION AND ANTIBACTERIAL EFFECT OF ORGANICALLY MODIFIED SILICATE SUPPORTING SILVER

• Main Authors: Mei-Jei Liu, 劉銘傑
• Other Authors: Kuo-Hui Wu
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/98015369692817887442

碩士 === 國防大學中正理工學院 === 應用化學研究所 === 96 === Silver ions have long been known to have strong inhibitory and bactericidal effects as well as a broad spectrum of antibacterial activities. The silver-based antibacterial composites have to release the Ag+ to a pathogenic environment in order to be effective. For improving the anticorrosive and antibacterial properties of organically modified silicate, the sol-gel method is used to obtain Ag doped siloxane solution by adding Ag into siloxane coupling agent, and then antibacterial and anticorrosive film is prepared on the aluminum alloy surface by spin coating. The effect of siloxane coupling agent and silver content on the antibacterial and anticorrosive efficacy of composite is investigated. The characterization of the composites is discussed on the basis of the structural characterization, including SEM, TEM and NMR. Additionally, electrochemical analysis and accelerated corrosion testing will be used to investigate the corrosion resistance of the composites. Taking Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus and Bacillus subtilis as target bacteria, suspension quantitative bactericidal test and inhibitory test are carried out.