@Article{JFBI-1-165, author = {Lijing Wang}, title = {Preparation and Characteristics of a New Antibacterial Cotton Fiber Bonding a Gemini-type Quaternary Ammonium Salt}, journal = {Journal of Fiber Bioengineering and Informatics}, year = {2008}, volume = {1}, number = {2}, pages = {165--172}, abstract = {Two kinds of antibacterial cotton fiber (called as C_{14} and C_t) were prepared by bonding a gemini-type quaternary ammonium compound with a hydroxyl group in their spacer chain [1,5-bis(tetradecyl dimethyl ammonium iodide)-3- pentanol (called as DAP_{14})] and a mono-type quaternary ammonium compound [N-tetradecyldimethyl (3-trimethoxysilylpropyl) ammonium chloride (called as TMMP)], respectively, to the surface of cotton fiber using a coupling agent, tetraethoxysilane. Antibacterial characteristic of C_{14} was investigated comparatively with C_t. The experimental results indicated that C14 has higher antimicrobial activity than Ct against a broad range of microorganism, and average net bactericidal ratio against 15 strains of gram-negative, gram-positive bacteria and yeasts is 98.0% at 30°C and pH 6.0, which are 25.2 and 17.2 percentage point higher than those of C_t at treated time of 30min and 60min, respectively. Antibacterial activity of C_{14} was hardly influenced by environmental pH and temperature, and could not be removed from the surfaces of cotton fiber by repeated washing with water.}, issn = {2617-8699}, doi = {https://doi.org/10.3993/jfbi09200810}, url = {http://global-sci.org/intro/article_detail/jfbi/5036.html} }