Version 1
: Received: 22 July 2024 / Approved: 23 July 2024 / Online: 24 July 2024 (11:51:05 CEST)
How to cite:
Briesemeister, M.; Gómez-Sánchez, J. A.; Bertemes-Filho, P.; Pezzin, S. H. PVC/CNT Electrospun Composites: Morphology, Thermal and Impedance Spectra. Preprints2024, 2024071875. https://doi.org/10.20944/preprints202407.1875.v1
Briesemeister, M.; Gómez-Sánchez, J. A.; Bertemes-Filho, P.; Pezzin, S. H. PVC/CNT Electrospun Composites: Morphology, Thermal and Impedance Spectra. Preprints 2024, 2024071875. https://doi.org/10.20944/preprints202407.1875.v1
Briesemeister, M.; Gómez-Sánchez, J. A.; Bertemes-Filho, P.; Pezzin, S. H. PVC/CNT Electrospun Composites: Morphology, Thermal and Impedance Spectra. Preprints2024, 2024071875. https://doi.org/10.20944/preprints202407.1875.v1
APA Style
Briesemeister, M., Gómez-Sánchez, J. A., Bertemes-Filho, P., & Pezzin, S. H. (2024). PVC/CNT Electrospun Composites: Morphology, Thermal and Impedance Spectra. Preprints. https://doi.org/10.20944/preprints202407.1875.v1
Chicago/Turabian Style
Briesemeister, M., Pedro Bertemes-Filho and Sérgio Henrique Pezzin. 2024 "PVC/CNT Electrospun Composites: Morphology, Thermal and Impedance Spectra" Preprints. https://doi.org/10.20944/preprints202407.1875.v1
Abstract
PVC/CNT membranes were electrospun, and subsequently characterized by thermal analyses (TGA and DSC), transmission and scanning electron microscopies (TEM and FEG) and electrical impedance spectroscopy (EIS). TEM images show that most of the nanotubes were encapsulated, inside the fibers and oriented along them. FEG showed no significant differences in the average diameters. The CNTs caused a significant reduction (up to 20 °C) in the glass transition temperature (Tg) in relation to the resin and a positive impact on thermal stability. Nyquist plots is possible to observe a charge transfer resistance of 38 and 40 Mohm, respectively, for pure PVC and PVC/CNT 3%. It is suggested the high porosity and encapsulation of CNTs in the fibers prevents the formation of a percolation network. The present study aims to evaluate the effect of the encapsulation of CNTs in morphology, thermal and impedance spectra of electrospun composites.
Chemistry and Materials Science, Polymers and Plastics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
