Silicone rubber/polyvinylpyrrolidone microfibers produced by coaxial electrospinning

Core‐shell structured silicone microfibers were prepared by coaxial electrospinning using polyvinylpyrrolidone (PVP) as the shell and silicone rubber (SR) as the core. The electrospinnability of SR at three time windows was evaluated and the electrospinning process was optimized accordingly. A posit...

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Bibliographic Details
Published in:Journal of applied polymer science 2013-05, Vol.128 (4), p.2273-2276
Main Authors: Lu, Shengguo, Duan, Xujia, Han, Yuwang, Huang, He
Format: Article
Language:English
Subjects:
Applied sciences
coaxial electrospinning
Electrospinning
Exact sciences and technology
Fibers
Fibers and threads
Forms of application and semi-finished materials
Immersion
Materials science
Microfibers
microstructure
nanocomposites
Polymer industry, paints, wood
Polymers
Polyvinylpyrrolidone
Shells
Silicone rubber
Silicones
Technology of polymers
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Summary:Core‐shell structured silicone microfibers were prepared by coaxial electrospinning using polyvinylpyrrolidone (PVP) as the shell and silicone rubber (SR) as the core. The electrospinnability of SR at three time windows was evaluated and the electrospinning process was optimized accordingly. A positive correlation was found between the fibrous morphology and the SR/PVP speed ratios. As the speed ratio increased, the composite fiber showed larger diameter and wider diameter distribution. For the fibers prepared at PVP/SR speed ratios of 1.7/2.5 and 3.5/2.5 (mL/h), the fibrous structure remained intact after immersion in water for 8 h. The pure SR microfiber could be made from the composite after immersion in water, which can be potentially used as stretchable and selectively permeable membranes for chemical protective applications and in plastics toughening. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
ISSN:0021-8995
1097-4628
DOI:10.1002/app.37848