Premium
Preparation of Ultra‐Fine Silica Fibers Using Electrospun Poly(Vinyl Alcohol)/Silatrane Composite Fibers as Precursor
Author(s) -
Krissanasaeranee Methira,
Vongsetskul Thammasit,
Rangkupan Ratthapol,
Supaphol Pitt,
Wongkasemjit Sujitra
Publication year - 2008
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2008.02589.x
Subject(s) - calcination , vinyl alcohol , composite number , electrospinning , materials science , cristobalite , composite material , fiber , synthetic fiber , amorphous solid , chemical engineering , polymer chemistry , polymer , chemistry , catalysis , organic chemistry , quartz , engineering
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.