Electrospun Teflon AF fibers for superhydrophobic membranes

作     者：Scheffler, Raymond Bell, Nelson S. Sigmund, Wolfgang 

作者机构：Univ Florida Dept Mat Sci & Engn Gainesville FL 32611 USA Sandia Natl Labs Albuquerque NM 87123 USA Hanyang Univ Dept Energy Engn Seoul 133791 South Korea 

出 版 物：《JOURNAL OF MATERIALS RESEARCH》 (材料研究杂志)

年 卷 期：2010年第25卷第8期

页      面：1595-1600页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：U.S. DOE [DE-AC04-94AL8500] 

主　　题：F Nanostructure Polymer 

摘      要：Superhydrophobic membranes have the potential to protect devices from incidental exposure to water. This paper reports on the processing of Teflon AF fluoropolymers through electrospinning. Teflon AF is difficult to electrospin due to its low dielectric constant and the low dielectric constants of the liquids in which it is soluble. The two approaches that have been utilized to produce fibers are direct electrospinning in Novec engineering liquids and core-shell electrospinning. Both methods produced superhydrophobic membranes. Fibers with an average diameter of 290 nm and average water contact angle of 151 degrees were obtained by core-shell electrospinning. One suggested application for electrospun superhydrophobic membranes is the lithium-air battery.