以棉织物为主要材料,十六烷基三甲氧基硅烷(HDTMS)为低表面能物质,采用纤维素酶刻蚀法和浸涂法制备出了超疏水棉织物。制备的超疏水棉织物具有良好的超疏水性(接触角154.4°)、耐洗涤性和抗污性,以该材料作为分离膜的油水分离装置实现了多种油水混合物的高效分离,并且具有良好的重复使用性,对四氯化碳-水、正十六烷-水混合液重复工作循环25次后的分离效率仍能达到95%以上。该实验方法对环境友好、安全性高、成本低,具有一定的应用价值。
Using cotton fabric as the main material and hexadecyltrimethoxysilane (HDTMS) as low-surface-energy substance,a superhydrophobic cotton fabric was prepared by cellulase etching method and dip coating method.The prepared superhydrophobic cotton fabric had good superhydrophobicity (contact angle of 154.4°),washability,and stain resistance.The oil-water separation device using this material as a separation membrane achieved efficient separation of various oil-water mixtures,and had good reusability.The separation efficiency of carbon tetrachloride-water and n-hexadecane-water mixtures could still reach over 95% after 25 repeated working cycles.The experimental design is environmentally friendly,highly safe,and cost-effective,and has certain practical value.
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基金资助
国家自然科学基金(32170100);教育部产学合作协同育人项目(230907709274723);国家一流本科课程-新能源材料项目(2023241384);中山大学广东新材料产业基地联合研究中心项目(20177611071010008)
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