Effects of Calcination Temperature on Electrospun Silica Fibers

Pramuansub, Nuttaya; Jittangprasert, Piyada; Wanakamol, Panitarn

doi:10.4028/www.scientific.net/amr.488-489.602

Cited by 2 publications

(3 citation statements)

References 14 publications

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“…Nano Engineering and Materials Technologies range as previous work [12]. With EDS characterization, the fibers before calcination were found to consist of silicon, oxygen and carbon at atomic percentages of 34, 56, and 10 accordingly.…”

mentioning

confidence: 60%

“…Silica Fibers Fabrication via Electrospinning. Silica fibers have been fabricated according to the previous work [12]. Viscous liquid precursor was prepared via sol-gel reaction of tetraethyl orthosilicate (TEOS) supplied by Sigma-Aldrich, ethanol and hydrochloric acid (HCl) supplied by Carlo Erba Reagents, and de-ionized water (H2O).…”

Section: Methodsmentioning

confidence: 99%

“…It can produce fine fibers with diameter from a few tens of nanometers to a few micrometers [8][9]. Although ceramics materials and metal oxides are more difficult to prepare into viscous liquid form compared to polymeric materials, various metal oxides such as silica have been fabricated into submicron fibers via electrospinning [10][11][12]. Depending on precursor preparation, the diameters of electrospun silica fibers fall in the range of a few hundreds of nanometers.…”

Section: Introductionmentioning

confidence: 99%

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Preliminary Study on Tensile Properties of Electrospun Silica Fibers/Polypropylene Composites

Wanakamol

Boonyaratgalin

Supanam

2017

MSF

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Composites based on silica and glass fibers conventionally contain fibers with dimension in the range of a few micrometers to millimeters. Electrospinning technique allows fabrication of fibers in the submicron length scale. With smaller dimension, these fibers when applied as reinforcement in composites may yield interesting composite properties. In this paper, silica fibers fabricated via electrospinning were utilized as reinforcement in polypropylene-matrixed composites. The silica precursor was prepared by sol-gel reaction of tetraethyl orthosilicate, ethyl alcohol, de-ionized water and hydrochloric acid. Viscous silica precursor was made into fibers by electrospinning with electric field of 1 kV/cm. Electrospun non-woven fiber mats were stabilized at 200°C and calcined at 800°C to remove remaining organic residues. The fiber diameter average was 279±40 nm. In the process of making composites, the silica fiber mats were sandwiched between polypropylene sheets, and the layers were compression-molded together. The composite samples with varied silica fiber contents up to 2 wt% were mechanically tested. Tensile tests demonstrate slight increases in tensile modulus, tensile strength with increasing silica fiber content. However, silica fiber content within the experimental range does not have prominent effects on yield strength and strain at break.

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confidence: 60%

Section: Methodsmentioning

confidence: 99%