Antifogging and icing-delay properties of composite micro- and nanostructured surfaces

Mengxi Wu, Lei Wang, Mingqian Zhang, Lei Jiang, Yongmei Zheng

Research output: Contribution to journalArticleResearchpeer-review

117 Citations (Scopus)

Abstract

A composite micro/nanostrucutred (MN) surface was designed using poly(vinylidene difluoride) (PVDF) polymer in combination with ZnO materials via heat-pattern-transfer and crystal-growth techniques. The surface, composed of ZnO nanohairs over PVDF microratchets (i.e., ZP-MN), displays excellent antifogging and icing-delay properties. Condensed water droplets can be easily shed from the ZP-MN surface at −5 °C for ∼1600 s via a slight wind or tilting. The droplets do not completely freeze on the ZP-MN surface at −10 °C until ∼7360 s. This investigation offers a way to design a structured surface that possesses anti-icing ability, which is significant because it can be extended to fields such as microdevices, engineering systems, and engines that operate in a cold or humid environment.
Original languageEnglish
Pages (from-to)3963-3968
Number of pages6
JournalACS Applied Materials & Interfaces
Volume6
Issue number6
DOIs
Publication statusPublished - 26 Mar 2014
Externally publishedYes

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