外文题目: A facile method to fabricate superamphiphobic polytetrafluoroethylene surface by femtosecond laser pulses
作者: Fan, Wenzhong; Qian, Jing; Bai, Feng; Li, Yangbo; Wang, Chengwei; Zhao, Quan-Zhong
刊名: Chem. Phys. Lett.
年: 2016 卷: 644 页： 261--266
英文关键词:

OIL-REPELLENT SURFACES; SUPEROLEOPHOBIC COATINGS; PTFE SURFACES; ABLATION; TEFLON; DEPOSITION; FILMS; WATER
英文摘要:
We report a simple method to fabricate superamphiphobic polytetrafluoroethylene (PTFE) surfaces by femtosecond laser direct irradiation. After femtosecond laser direct writing, a dual-scale composite structure combined a groove-like microstructure with a lamellar submicron structure forms on the PTFE surface, enhancing its hydrophobic properties with a contact angle increasing from 109 degrees to 156.88 degrees, as well as exhibiting transition from intrinsic oleophilicity to superoleophobicity. Meanwhile, the wett-ability of the surface can be tuned by changing the roughness and the interval between two adjacent micro-grooves. Furthermore, we also explain the relationship between the interval width and the contact angle using the Cassie-Baxter model. (C) 2015 Elsevier B.V. All rights reserved.


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.1016/j.cplett.2015.12.010


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