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Femtosecond laser ablated durable superhydrophobic PTFE sheet for oil/water separation

  • Wentao Li
  • , Qing Yang
  • , Feng Chen
  • , Jiale Yong
  • , Yao Fang
  • , Jinglan Huo
  • Xi'an Jiaotong University

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations

Abstract

Femtosecond laser microfabrication has been attracting increasing interest of researchers in recent years, and been applied on interface science to control the wettability of solid surfaces. Herein, we fabricate a kind of rough microstructures on polytetrafluoroethylene (PTFE) sheet by femtosecond laser. The femtosecond laser ablated surfaces show durable superhydrophobicity and ultralow water adhesion even after storing in a harsh environment for a long time, including strong acid, strong alkali, and high temperature. A penetrating microholes array was further generated on the rough superhydrophobic PTFE sheet by a subsequent mechanical drilling process. The as-prepared material was successfully applied in the field of oil/water separation due to the inverse superhydrophobicity and superoleophilicity.

Original languageEnglish
Article number102563O
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume10256
DOIs
StatePublished - 2017
Event2nd International Conference on Photonics and Optical Engineering - Xi'an, China
Duration: 14 Oct 2016 → …

Keywords

  • Durability
  • Femtosecond laser
  • Oil/water separation
  • PTFE
  • Superhydrophobic

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