title: Fabrication of Superhydrophobic Surfaces with Controllable Electrical Conductivity and Water Adhesion.
abstract: A facile and versatile strategy for fabricating superhydrophobic surfaces with controllable electrical conductivity and water adhesion is reported. "Vine-on-fence"-structured and cerebral cortex-like superhydrophobic surfaces are constructed by filtering a suspension of multiwalled carbon nanotubes (MWCNTs), using polyoxymethylene nonwovens as the filter paper. The nonwovens with micro- and nanoporous two-tier structures act as the skeleton, introducing a microscale structure. The MWCNTs act as nanoscale structures, creating hierarchical surface roughness. The surface topography and the electrical conductivity of the superhydrophobic surfaces are controlled by varying the MWCNT loading. The vine-on-fence-structured surfaces exhibit "sticky" superhydrophobicity with high water adhesion. The cerebral cortex-like surfaces exhibit self-cleaning properties with low water adhesion. The as-prepared superhydrophobic surfaces are chemically resistant to acidic and alkaline environments of pH 2-12. They therefore have potential in applications such as droplet-based microreactors and thin-film microextraction. These findings aid our understanding of the role that surface topography plays in the design and fabrication of superhydrophobic surfaces with different water-adhesion properties.
authors.affiliation: College of Material, Chemistry and Chemistry Engineering, Hangzhou Normal University , Hangzhou 310036, People's Republic of China.
authors.forename: Lijun
authors.initials: L
authors.lastname: Ye
authors.affiliation: College of Material, Chemistry and Chemistry Engineering, Hangzhou Normal University , Hangzhou 310036, People's Republic of China.
authors.forename: Jipeng
authors.initials: J
authors.lastname: Guan
authors.affiliation: College of Material, Chemistry and Chemistry Engineering, Hangzhou Normal University , Hangzhou 310036, People's Republic of China.
authors.forename: Zhixiang
authors.initials: Z
authors.lastname: Li
authors.affiliation: College of Material, Chemistry and Chemistry Engineering, Hangzhou Normal University , Hangzhou 310036, People's Republic of China.
authors.forename: Jingxin
authors.initials: J
authors.lastname: Zhao
authors.affiliation: College of Material, Chemistry and Chemistry Engineering, Hangzhou Normal University , Hangzhou 310036, People's Republic of China.
authors.forename: Cuicui
authors.initials: C
authors.lastname: Ye
authors.affiliation: College of Material, Chemistry and Chemistry Engineering, Hangzhou Normal University , Hangzhou 310036, People's Republic of China.
authors.forename: Jichun
authors.initials: J
authors.lastname: You
authors.affiliation: College of Material, Chemistry and Chemistry Engineering, Hangzhou Normal University , Hangzhou 310036, People's Republic of China.
authors.forename: Yongjin
authors.identifier: 0000-0001-6666-1336
authors.initials: Y
authors.lastname: Li