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Ultrafine PDMS fibers: Preparation from in situ curing-electrospinning and mechanical characterization

Niu,H, Wang,H, Zhou,H and Lin,T 2014, Ultrafine PDMS fibers: Preparation from in situ curing-electrospinning and mechanical characterization, RSC Advances, vol. 4, no. 23, pp. 11782-11787, doi: 10.1039/c4ra00232f.

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Title Ultrafine PDMS fibers: Preparation from in situ curing-electrospinning and mechanical characterization
Author(s) Niu,HORCID iD for Niu,H orcid.org/0000-0002-8442-7444
Wang,H
Zhou,H
Lin,TORCID iD for Lin,T orcid.org/0000-0002-1003-0671
Journal name RSC Advances
Volume number 4
Issue number 23
Start page 11782
End page 11787
Total pages 6
Publisher Royal Society of Chemistry
Place of publication London, Eng.
Publication date 2014
ISSN 2046-2069
Keyword(s) Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Chemistry
NANOFIBROUS MEMBRANES
MICROFLUIDIC DEVICES
CONTROLLED-RELEASE
HIGH-FLUX
MICROFIBERS
FABRICATION
SCAFFOLDS
LAYERS
CELL
Summary Polydimethylsiloxane (PDMS) fibers with unexpected elasticity were prepared by a modified core-shell electrospinning method using a commercially-available liquid PDMS precursor (Sylgard 184) and polyvinylpyrrolidone (PVP) as core and sheath materials, respectively. The liquid PDMS precursor was crosslinked in situ to form a solid core when the newly-electrospun core-sheath nanofibers were deposited onto a hot-plate electrode collector. After dissolving the PVP sheath layer off the fibers, net PDMS fibers showed larger average diameter than core-sheath fibers, with an average diameter around 1.35 μm. The tensile properties of both single fibers and fibrous mats were measured. Single PDMS fibers had a tensile strength and elongation at break of 6.0 MPa and 212%, respectively, which were higher than those of PDMS cast film (4.9 MPa, 93%). The PDMS fiber mat had larger elongation at break than the single PDMS fibers, which can be drawn up to 403% their original length. Cyclic loading tests indicated a Mullin effect on the PDMS fiber mats. Such a superior elastic feature was attributed to the PDMS molecular orientation within fibers and the randomly-orientated fibrous structure. Highly-elastic, ultrafine PDMS fibers may find applications in strain sensors, biomedical engineering, wound healing, filtration, catalysis, and functional textiles. © The Royal Society of Chemistry 2014.
Language eng
DOI 10.1039/c4ra00232f
Field of Research 100708 Nanomaterials
100707 Nanomanufacturing
Socio Economic Objective 860406 Synthetic Fibres, Yarns and Fabrics
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Royal Society of Chemistry
Persistent URL http://hdl.handle.net/10536/DRO/DU:30070134

Document type: Journal Article
Collection: Institute for Frontier Materials
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