Journal article
One-Step Bottom-Up Growth of Highly Liquid Repellent Worm-Like Surfaces on Planar Substrates
Advanced materials interfaces, v 9(9), pp 2101961-n/a
07 Feb 2022
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Highly liquid repellent (superhydrophobic, superoleophobic) surfaces are fabricated using mostly top-down approaches and liquid-based processing. Top-down approaches, like lithography and templating, are highly process-intensive, while liquid-based processing, like etching and fluoropolymer solution coating, rely on solvents that often damage the substrate. Ultimately, to suppress liquids from spreading, the goal is to create a surface with low surface energy and a hierarchically roughened topology. Here, a bottom-up approach that achieves these two prerequisite criteria in one single step is demonstrated. Relying on a liquid-free initiated chemical vapor deposition (iCVD) process, worm-like protrusions of a semicrystalline fluoropolymer (poly(perfluorodecyl acrylate)) directly grow on flat substrates without prior surface pretreatment. The nano/microworm surfaces display super-liquid repellency (>150 degrees contact angle) to water and oil. Worm formation (as opposed to conformal thin film formation) is attributed to preferential crystal nucleation, orientation, and growth on the substrate plane.
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Details
- Title
- One-Step Bottom-Up Growth of Highly Liquid Repellent Worm-Like Surfaces on Planar Substrates
- Creators
- Zhengtao Chen - Drexel UniversityTien H. Nguyen - Drexel UniversityShayna M. Rumrill - Drexel UniversityKenneth K. S. Lau - Drexel University
- Publication Details
- Advanced materials interfaces, v 9(9), pp 2101961-n/a
- Publisher
- Wiley
- Number of pages
- 13
- Grant note
- CBET-1510888; CMMI-1950964 / U.S. National Science Foundation; National Science Foundation (NSF) NNCI-2025608 / NSF National Nanotechnology Coordinated Infrastructure Program P200A190027 / U.S. Department of Education; US Department of Education
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000751802200001
- Scopus ID
- 2-s2.0-85124468473
- Other Identifier
- 991019168820904721
UN Sustainable Development Goals (SDGs)
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Chemistry, Multidisciplinary
- Materials Science, Multidisciplinary