A free-standing superhydrophobic film for highly efficient removal of water from turbine oil

查看全文 作　　者：Fan [1]Shu;Meng [1]Wang;Jinbo [2]Pang;Ping [1]Yu

机构地区：[1]College of Chemistry and Molecular Sciences,Wuhan University,Wuhan 430072,China;[2]Institute for Advanced Interdisciplinary Research (iAIR),University of Jinan,Jinan 250022,China

出　　处：《Frontiers of Chemical Science and Engineering》索引2019年第13卷第2期,共7页

摘　　要：A free-standing superhydrophobic film is prepared by sequentially dip-coating a commercially available filter paper with nano SiO2 suspension, epoxy emulsion, and octyltrimethoxysilane solution. A surface with micro- or nano-roughness is formed because SiO2 nanoparticles are uniformly and firmly adhered on the backbone of the filter paper by the cured epoxy resin. Furthermore, the surface energy is significantly reduced because of introducing octytrimethoxysilane. Such a surface structure makes the prepared film a superhydrophobic material. Due to its free-standing nature, this superhydrophobic film can be used to remove water from turbine oil by filtration. The efficiency of water removal is high (up to 94.1%), and the filtration process is driven solely by gravity without extra energy consumption. Because of the facile fabrication process and the high efficiency of water removal, this free-standing superhydrophobic film may find application in power industry. 关键词：SUPERHYDROPHOBICITY nanoparticles DIP coating EPOXY EMULSION turbine oil

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A free-standing superhydrophobic film for highly efficient removal of water from turbine oil

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