棉织物的TiO_2/ZnO水溶胶-凝胶抗菌整理

Anti-bacterial finish of cotton fabric with TiO_2/ZnO hydrosol-gel method

在TiO2／ZnO水溶胶对纺织品抗菌整理中，探讨了水溶胶中TiO2与ZnO物质的量之比、TiO2／ZnO水溶胶的浓度、掺杂类型、掺杂Ag^＋浓度、掺杂La^3＋浓度、陈化时间以及外部测试的光源环境对其抗菌整理效果的影响。优化的TiO2／ZnO水溶胶抗菌整理工艺配方为：水溶胶中TiO2／ZnO物质的量之比为2：1，复合水溶胶适宜的摩尔浓度为0．2—0．3mol／L；掺0．5％La^3＋或0．5％Ag^＋到TiO2／ZnO水溶胶中，对金黄葡萄球菌和大肠埃希菌的抑菌率明显高于未掺杂的TiO2／ZnO复合水溶胶。

In anti-bacterial finish of textiles with TiO2/ZnO hydrosol, the factors affecting anti-bacterial properties are discussed, such as molar ratio of TiO2/ZnO hydrosol, concentration of TiO2/ZnO hydrosol, types of doping, doping concentration of Ag^＋ and La^3＋, aging time and lighting conditions. The optimal recipe of TiO2/ZnO hydrosol is molar ratio of 2：1 and concentration of 0.2-0.3 mol/L. Doping 0.5% La^3＋ or 0.5% Ag^＋ to TiO2/ZnO hydrosol, the anti-bacterial effects on staphylococcus aureus and escherichia coil are significantly higher than those of undoped TiO2/ZnO composite hydrosol.