Preparation of Hydrophobic Fly Ash by Surface Modification and Oil-water Separation Devices  

作　　者：于阳剑 刘鹏 WANG Fazhou HU Chuanlin YU Yangjian;LIU Peng;WANG Fazhou;HU Chuanlin(School of Chemistry,Chemical Engineering and Life Science,Wuhan University of Technology,Wuhan 430070,China;State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]School of Chemistry,Chemical Engineering and Life Science,Wuhan University of Technology,Wuhan 430070,China [2]State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology,Wuhan 430070,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2023年第3期695-700,共6页武汉理工大学学报（材料科学英文版）

基　　金：Hubei Technology Innovation Key Program (No.2018AAA004)。

摘　　要：A simple and effective superhydrophobic mesh was designed and made to separate oil-water mixture. Alkali-activated fly ash reacted with 1-bromooctadecane to prepare superhydrophobic modified fly ash (MFA) with low surface energy through Williamson ether synthesis. The MFA powder was then coated uniformly on a stainless steel mesh (SSM) along with the epoxy resin E44 and curing agent T31 to give the superhydrophobic MFA-modified stainless steel mesh (MFA-SSM). The MFA-SSM has a high static water contact angle (CA) of 150.1°and can separate various oil or organic solvent from water with>95%separation efficiency. The oil-water separation efficiency remained high after 30 runs of petroleum ether/water separation.The developed superhydrophobic stainless steel mesh is expected to have wider use in oil-water separation.

关 键 词：oil-water separation superhydrophobic stainless steel mesh Williamson ether synthesis 

分 类 号：X703[环境科学与工程—环境工程] TB34[一般工业技术—材料科学与工程] TQ536.4[化学工程—煤化学工程]