Tension gradient self-assembly to facilely fabricate polytetrafluoroethylene coatings for oil–water separation. (June 2019)

• Record Type: Journal Article
• Authors: Feng, Dong; Weng, Ding; Chen, Chaolang; Wang, Jiadao
• Is Part Of: MRS communications. Volume 9:Number 2(2019)
• Page Start: 690
• Page End: 696
• Publication Date: 2019-06
• Subjects: Materials -- Periodicals; 620.11
• DOI: 10.1557/mrc.2019.65
• Languages: English
• ISSNs: 2159-6859

Abstract

Abstract: Abstract : A facile and low-cost method based for tension gradient self-assembly was developed to prepare polytetrafluoroethylene (PTFE) nanofiber coatings on stainless-steel fiber felts. The PTFE particles were used as building blocks and the self-assembly process was analyzed thoroughly. After being sintered, the PTFE particles were transformed into PTFE nanofibers. The felts coated with the PTFE nanofibers exhibited superhydrophobicity and superoleophilicity, and could separate a series of oil–water mixtures with high efficiency and good reusability. The coated felts also presented excellent chemical and thermal stabilities. Over all, this approach could easily fabricate ultra-robust oil–water separation materials suitable for industrial applications.