Gelation Performance of Cationic Gemini Silica Sol with Inorganic Salts and Its Antibacterial Property Analysis |
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Authors: | Haiyan Mao Kezhong Wang |
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Institution: | Key Laboratory of Eco-Textile, Ministry of Education , Jiangnan University , Wuxi , P. R. China |
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Abstract: | Cationic gemini silica sol (CGSS) was prepared via sol-gel method with tetraethoxysilane (TEOS) as a precursor and ethylene-bis (octadecyl dimethyl ammonium chloride) (EBODAC) as an additive. Inorganic salts, such as NaCl, KCl, MgCl2, and CaCl2 boost the gelation process while FeCl3 delays this process. Antibacterial ratio of treated cotton achieves 90.6% under the baking condition of 160°C for 3 minutes and warp-wise strength, break elongation and whiteness are less impacted under this baking condition. The antibacterial rate of cotton treated by the sols with vinyl tris (β-methoxyethoxy) silane (VTMES) used as the coupling agent still reached up to 81.2% after washing 30 times. |
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Keywords: | Antibacterial cationic gemini surfactant gelation inorganic salts silica sol |
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