Preparation of Ultra-Fine Silica Fibers Using Electrospun Poly(Vinyl Alcohol)/Silatrane Composite Fibers as Precursor

Ultra‐fine composite fibers made from poly(vinyl alcohol) (PVA)/silatrane, an inexpensive and moisture‐stable silicon‐containing compound, were prepared by a combined sol–gel processing and electrospinning technique with average diameters ranging between 119 and 405 nm. These fibers were subsequentl...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2008-09, Vol.91 (9), p.2830-2835
Main Authors: Krissanasaeranee, Methira, Vongsetskul, Thammasit, Rangkupan, Ratthapol, Supaphol, Pitt, Wongkasemjit, Sujitra
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Calcination
Ceramic and carbon fibers
Ceramic industries
Ceramics
Chemical industry and chemicals
Composite materials
Cristobalite
Electrospinning
Exact sciences and technology
Fibers
Polyvinyl alcohol
Precursors
Silica
Silicon
Silicon dioxide
Sol gel process
Technical ceramics
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Summary:Ultra‐fine composite fibers made from poly(vinyl alcohol) (PVA)/silatrane, an inexpensive and moisture‐stable silicon‐containing compound, were prepared by a combined sol–gel processing and electrospinning technique with average diameters ranging between 119 and 405 nm. These fibers were subsequently converted to ultrafine silica fibers by calcination treatment, with the aim of producing a silica structure with a high surface area‐to‐mass ratio. Upon calcination at 500°C, the PVA/silica composite fibers were converted into amorphous silica fibers, while calcination of the composite fibers at temperatures ≥700°C resulted in the formation of cristobalite fibers. The average diameter of these silica fibers ranged between 162 and 213 nm.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1551-2916.2008.02589.x