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MDPI
Materials
,  volume 14 ,  issue 23 ,  pages 7428

Formation of polymer-carbon nanotube composites by two-step supercritical fluid treatment

Publication type: Journal Article
Publication date: 2021-12-03
MDPI
scimago Q2
wos Q2
SJR: 0.614
CiteScore: 6.4
Impact factor: 3.2
ISSN: 19961944
DOI:  10.3390/ma14237428
PubMed ID:  34885587
General Materials Science
Abstract
An approach for polymer-carbon nanotube (CNT) composite preparation is proposed based on a two-step supercritical fluid treatment. The first step, rapid expansion of a suspension (RESS) of CNTs in supercritical carbon dioxide, is used to de-bundle CNTs in order to simplify their mixing with polymer in solution. The ability of RESS pre-treatment to de-bundle CNTs and to cause significant bulk volume expansion is demonstrated. The second step is the formation of polymer-CNT composite from solution via supercritical antisolvent (SAS) precipitation. SAS treatment allows avoiding CNT agglomeration during transition from a solution into solid state due to the high speed of phase transition. The combination of these two supercritical fluid methods allowed obtaining a polycarbonate-multiwalled carbon nanotube composite with tensile strength two times higher compared to the initial polymer and enhanced elasticity.
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GOST |
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GOST Copy
Vorobei A. M. et al. Formation of polymer-carbon nanotube composites by two-step supercritical fluid treatment // Materials. 2021. Vol. 14. No. 23. p. 7428.
GOST all authors (up to 50) Copy
Vorobei A. M., Ustinovich K. B., Chernyak S. A., Savilov S. V., Parenago O. O., Kiselev M. G. Formation of polymer-carbon nanotube composites by two-step supercritical fluid treatment // Materials. 2021. Vol. 14. No. 23. p. 7428.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.3390/ma14237428
UR - https://doi.org/10.3390/ma14237428
TI - Formation of polymer-carbon nanotube composites by two-step supercritical fluid treatment
T2 - Materials
AU - Vorobei, A M
AU - Ustinovich, Konstantin B
AU - Chernyak, Sergei A.
AU - Savilov, Sergei V
AU - Parenago, O O
AU - Kiselev, Mikhail G
PY - 2021
DA - 2021/12/03
PB - MDPI
SP - 7428
IS - 23
VL - 14
PMID - 34885587
SN - 1996-1944
ER -
BibTex |
Cite this
BibTex (up to 50 authors) Copy
@article{2021_Vorobei,
author = {A M Vorobei and Konstantin B Ustinovich and Sergei A. Chernyak and Sergei V Savilov and O O Parenago and Mikhail G Kiselev},
title = {Formation of polymer-carbon nanotube composites by two-step supercritical fluid treatment},
journal = {Materials},
year = {2021},
volume = {14},
publisher = {MDPI},
month = {dec},
url = {https://doi.org/10.3390/ma14237428},
number = {23},
pages = {7428},
doi = {10.3390/ma14237428}
}
MLA
Cite this
MLA Copy
Vorobei, A. M., et al. “Formation of polymer-carbon nanotube composites by two-step supercritical fluid treatment.” Materials, vol. 14, no. 23, Dec. 2021, p. 7428. https://doi.org/10.3390/ma14237428.