Document Detail


Superhydrophobic films of electrospun fibers with multiple-scale surface morphology.
MedLine Citation:
PMID:  17569546     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Superhydrophobic nanofiber films were created from electrospun nanofibers with undulated surfaces at multiple scales in micrometers and nanometers. The electrospun nanofibers were produced out of aqueous solutions which contained water-soluble polymers and different colloids: monodisperse silica or polystyrene microspheres for larger particles and monodisperse silica nanoparticles for smaller particles. Various types of fibrous films were produced depending on the properties of the dispersing medium, the effects of additives, and the compositions of the bidisperse colloids. When polystyrene microspheres were used as sacrificial templates, macropores were left behind in the nanofibers during the removal of polystyrene microspheres by calcination. The nonwoven films of electrospun nanofibers, which were decorated with silica microspheres or macropores, could be continuously produced with considerable ease under a relatively wide range of operating conditions. The surface properties of the films were characterized by contact angle measurement and an X-ray photoelectron spectrometer. Through the surface modification of the electrospun nanofibers with fluorinated silane coupling agents, superhydrophobic surfaces with low sliding angles were successfully prepared.
Authors:
Jong-Min Lim; Gi-Ra Yi; Jun Hyuk Moon; Chul-Joon Heo; Seung-Man Yang
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-06-15
Journal Detail:
Title:  Langmuir : the ACS journal of surfaces and colloids     Volume:  23     ISSN:  0743-7463     ISO Abbreviation:  Langmuir     Publication Date:  2007 Jul 
Date Detail:
Created Date:  2007-07-10     Completed Date:  2007-10-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9882736     Medline TA:  Langmuir     Country:  United States    
Other Details:
Languages:  eng     Pagination:  7981-9     Citation Subset:  IM    
Affiliation:
National Creative Research Initiative Center for Integrated Optofluidic Systems and Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea.
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MeSH Terms
Descriptor/Qualifier:
Hydrophobicity
Membranes, Artificial*
Nanotubes / chemistry*
Polystyrenes / chemistry*
Silicon Dioxide / chemistry*
Chemical
Reg. No./Substance:
0/Membranes, Artificial; 0/Polystyrenes; 7631-86-9/Silicon Dioxide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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