Preparation, Characterization and MicrotribolicalBehavior Study of PSS/TiO_2 OrderlyAlternating Nanocomposite Multilayer Films
ZHANG Shengmao1,2, ZHANG Zhijun1, DANG Hongxin1,2, LOU Wenjing1, LIU Weimin2(1. Laboratory of Special Functional Materials, Henan Univerion, Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences, Gansu Lanzhou 730000, China)
Multilayer ultrathin films composed of titanium dioxide nanosized particles and PSS had been fabricated on quartz substrates by a ironic self-assembly method. Contact angle measurements demonstrate that the water contact angle alternates regularly in accordance with molecules from the outermost layer of the films. The microtribological behavior of the thin films was studied by an AFM. The results indicate that the friction force decreases when the film number of layers increases.