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Reversible Superhydrophobicity to Superhydrophilicity Transition by Extending and Unloading an Elastic Polyamide Film
Author(s) -
Zhang Jilin,
Lu Xiaoying,
Huang Weihuan,
Han Yanchun
Publication year - 2005
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200400512
Subject(s) - superhydrophilicity , polyamide , wetting , materials science , composite material , net (polyhedron) , extension (predicate logic) , computer science , mathematics , geometry , programming language
Summary: Reversible switching between superhydrophobic and superhydrophilic wettability of a polyamide film with a triangular net‐like structure can be achieved by biaxially extending and unloading the elastic film. Both the change of the average side‐length of the triangular net‐like structure upon biaxial extension and unloading, and the surface tension of the water droplet, are believed to be responsible for the reversible switching between superhydrophobicity and superhydrophilicity.Change in structure and wettability of the triangular net‐like polyamide film upon extension and unloading.