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Facile preparation of superhydrophobic PDMS with patternable and controllable water adhesion characteristics
Zhou, Bingpu; Gao, Yibo; Mao, Yongyun; Wen, Weijia
2017-10
Source PublicationJOURNAL OF MATERIALS SCIENCE
ISSN0022-2461
Volume52Issue:19Pages:11428-11441
AbstractControl of water adhesion is important for superhydrophobic surfaces in various applications. In this work, we present a facile approach to prepare superhydrophobic polydimethylsiloxane (PDMS) with patternable and controllable water adhesion capabilities. Surface grafting of N-isopropylacrylamide was primarily exploited to regulate the PDMS template morphologies, either by tuning the ultraviolet irradiation duration or adopting repeated grafting process. The surface topologies of as-prepared PDMS templates can be flexibly constructed with roughness degrees ranging widely from 1.5 to 738.7 nm. Followed with covering of carbonyl iron particles (CIP) on the template surface, the duplicated PDMS substrate can thus recur the surface topology incorporated with CIP onto the upper surface, leading to the feasibility to regulate diverse water adhesion capabilities. Owing to the synergistic effect by the surface roughness and CIP incorporation, the water adhesion capabilities of the PDMS substrates can be flexibly tuned ranging from droplet pinning to excellent water repellency. The presented strategies were further developed to create PDMS substrates with patterned water adhesion for controllable micro-droplet transportation or rapidly programmable droplet localizations. We believe that the environmentally friendly method can offer as a convenient yet cost-effective tool for future microfluidic devices, biochemical analysis, etc.
DOI10.1007/s10853-017-1317-x
URLView the original
Indexed BySCI
Language英语
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000405306300024
PublisherSPRINGER
The Source to ArticleWOS
Fulltext Access
Citation statistics
Document TypeJournal article
CollectionUniversity of Macau
Recommended Citation
GB/T 7714
Zhou, Bingpu,Gao, Yibo,Mao, Yongyun,et al. Facile preparation of superhydrophobic PDMS with patternable and controllable water adhesion characteristics[J]. JOURNAL OF MATERIALS SCIENCE,2017,52(19):11428-11441.
APA Zhou, Bingpu,Gao, Yibo,Mao, Yongyun,&Wen, Weijia.(2017).Facile preparation of superhydrophobic PDMS with patternable and controllable water adhesion characteristics.JOURNAL OF MATERIALS SCIENCE,52(19),11428-11441.
MLA Zhou, Bingpu,et al."Facile preparation of superhydrophobic PDMS with patternable and controllable water adhesion characteristics".JOURNAL OF MATERIALS SCIENCE 52.19(2017):11428-11441.
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