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Morphological Analysis of Nanostructured PVDF β-Phase Films Obtained by Solution Blow Spinning
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Morphological Analysis of Nanostructured PVDF β-Phase Films Obtained by Solution Blow Spinning

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Abstract:

This work aimed to compare the characteristics of micro and nanofibers of the poly (vinylidene fluoride) - PVDF polymer obtained by the Solution Blow Spinning (SBS) method, and films with those produced by other techniques, such as: casting and hot pressing. Thermogravimetric analysis (TGA) revealed that the films are thermally stable up to a temperature of 420 ° C. X-ray diffractometry (XRD) indicated the presence of the crystalline phases α and β, the β phase being more evident for nanofibers and PVDF casting. The film obtained by SBS showed a greater contact angle, showing to be more hydrophobic. Strain tests showed that the nanofiber films showed a 72% rupture to rupture, about 1.7 and 3.1 times greater than those obtained by casting and hot pressing, respectively. There was also a decrease in the modulus of elasticity and the limit of tensile strength of nanofibers, compared to other films.

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Advanced Engineering Forum Vol. 41 View Preview

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Periodical:

Advanced Engineering Forum (Volume 41)

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1-10

DOI:

https://doi.org/10.4028/www.scientific.net/AEF.41.1

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Online since:

July 2021

Authors:

Gabriel C. Dias*, Lincon Zadorosny, Alex O. Sanches, Mirian C. Santos, Luiz F. Malmonge

Keywords:

Different Techniques, Nanofibers, PVDF, Solution Blow Spinning, β-Phase

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