TY - JOUR T1 - Preparation and Characteristics of a New Antibacterial Cotton Fiber Bonding a Gemini-type Quaternary Ammonium Salt AU - Lijing Wang JO - Journal of Fiber Bioengineering and Informatics VL - 2 SP - 165 EP - 172 PY - 2008 DA - 2008/01 SN - 1 DO - http://doi.org/10.3993/jfbi09200810 UR - https://global-sci.org/intro/article_detail/jfbi/5036.html KW - quaternary ammonium salt KW - coupling KW - cotton fibers KW - anti-bacterial activity KW - washability KW - gemini AB - 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.

Lijing Wang. (1970). Preparation and Characteristics of a New Antibacterial Cotton Fiber Bonding a Gemini-type Quaternary Ammonium Salt. Journal of Fiber Bioengineering and Informatics. 1 (2). 165-172. doi:10.3993/jfbi09200810