Comparison of Three Methods for Generating Superhydrophobic, Superoleophobic Nylon Nonwoven Surfaces (Postprint)

摘要

This research deals with creating a superhydrophobic/superoleophobic surface by preparing a metastable Cassie -Baxter (CB) surface. To create a CB surface it is essential to have low surface energy and properly constructed surface morphology. We have explored three different techniques to achieve superhydrophobicity and superoleophobicity using hydroentangled nylon nonwoven fabric: pulsed plasma polymerization of 1H,1H,2H,2Hperfluorodecyl acrylate (PFAC8), microwave-assisted condensation of 1H,1H,2H,2H- perfluorodecyltrimethoxysilane (FS), and FS condensation through wet processing. Nonwoven fabric materials prepared using these three techniques were superhydrophobic and superoleophobic as shown by their very high contact angles for both water (contact angles of 168 -174 degrees) and dodecane (contact angles of 153 -160 degrees). The measured contact angles agree with the predicted values obtained through designing a CB surface.