Preparation and Characteristics of a New Antibacterial Cotton Fiber Bonding a Gemini-type Quaternary Ammonium Salt
Year: 2008
Author: Lijing Wang
Journal of Fiber Bioengineering and Informatics, Vol. 1 (2008), Iss. 2 : pp. 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.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.3993/jfbi09200810
Journal of Fiber Bioengineering and Informatics, Vol. 1 (2008), Iss. 2 : pp. 165–172
Published online: 2008-01
AMS Subject Headings:
Copyright: COPYRIGHT: © Global Science Press
Pages: 8
Keywords: quaternary ammonium salt
Author Details
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