Facile fabrication of durable superhydrophobic fabrics by silicon polyurethane membrane for oil/water separation

作     者：Taoyan Mao Runhui Xiao Peng Liu Jiale Chen Junqiang Luo Su Luo Fengwei Xie Cheng Zheng Taoyan Mao;Runhui Xiao;Peng Liu;Jiale Chen;Junqiang Luo;Su Luo;Fengwei Xie;Cheng Zheng

作者机构：School of Chemistry and Chemical EngineeringGuangzhou UniversityGuangzhou 510006China Guangdong Debao Environmental Technology Research Co.LtdGuangzhou 510300China School of EngineeringNewcastle UniversityNewcastle upon Tyne NE17RUUnited Kingdom Guangzhou Vocational College of Science and TechnologyGuangzhou 510550China 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2023年第55卷第3期

页      面：73-83页

核心收录：

学科分类：0821[工学-纺织科学与工程] 083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 0703[理学-化学] 082102[工学-纺织材料与纺织品设计] 

基　　金：the financial support provided by the National Natural Science Foundation of China (21808044) 

主　　题：Superhydrophobic fabrics Silicon polyurethane membrane Durability Separation Polymers Waster water 

摘      要：Nowadays, oil contamination has become a major reason for water pollution, and presents a global environmental challenge. Although many efforts have been devoted to the fabrication of oil/water separation materials, their practical applications are still hindered by their weak durability, poor chemical tolerance,environmental resistance, and potential negative impact on health and the environment. To overcome these drawbacks, this work offers a facile method to fabricate the eco-friendly and durable oil/water separation membrane fabrics by alkaline hydrolysis and silicon polyurethane coating. The X-ray photoelectron spectroscopy, scanning electron microscopy, and atomic force microscopy results demonstrate that silicon polyurethane membrane could be coated onto the surface of hydrolyzed polyester fabric and form a micro-/nano-scaled hierarchical structure. Based on this, the modified fabric could have a stable superhydrophobic property with a water contact angle higher than 150°, even after repeated washing and mechanical abrasion 800 times, as well as chemical corrosion. Moreover, the modified fabrics show excellent oil/water separation efficiency of up to 99% for various types of oil–water mixture. Therefore, this durable, eco-friendly and cost-efficient superhydrophobic fabric has great potential in large-scale oil/water separation.