Department of Mechanical Engineering, Wichita State University, 1845 Fairmount, Wichita, Kansas 67260, United States.
Langmuir. 2011 Jan 18;27(2):504-7. doi: 10.1021/la103661c. Epub 2010 Dec 20.
Polystyrene (PS) and polyvinyl chloride (PVC) fibers incorporated into TiO(2) nanoparticles and graphene nanoflakes were fabricated by an electrospinning technique, and then the surface morphology and superhydrophobicity of these electrospun nanocomposite fibers were investigated. Results indicated that the water contact angle of the nanocomposite fiber surfaces increases to 178° on the basis of the fiber diameter, material type, nanoscale inclusion, heat treatment, and surface porosity/roughness. This is a result of the formation of the Cassie-Baxter state in the fibers via the nanoparticle decoration, bead formation, and surface energy of the nanofiber surface. Consequently, these superhydrophobic nanocomposite fibers can be utilized in designing photoelectrodes of dye-sensitized solar cells (DSSCs) as self-cleaning and anti-icing materials for the long-term efficiency of the cells.
聚苯乙烯（PS）和聚氯乙烯（PVC）纤维被掺入到 TiO(2)纳米颗粒和石墨烯纳米片中，通过静电纺丝技术进行制备，然后对这些静电纺纳米复合纤维的表面形态和超疏水性进行了研究。结果表明，在纤维直径、材料类型、纳米级包含物、热处理和表面孔隙率/粗糙度的基础上，纳米复合纤维表面的水接触角增加到 178°。这是通过纳米颗粒装饰、珠形成和纳米纤维表面的表面能在纤维中形成 Cassie-Baxter 状态的结果。因此，这些超疏水纳米复合纤维可用于设计染料敏化太阳能电池（DSSC）的光电极，作为自清洁和抗结冰材料，以提高电池的长期效率。
