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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Preparation, thermal and mechanical properties of poly (ether-imide) composite reinforced with carbon nanotube buckypaper

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Author(s):
Ribeiro, Bruno [1, 2] ; Corredor, Jefersson A. R. [1] ; Ardila, Laura [1] ; Santos, Luis F. P. [2] ; Costa, Michelle L. [2] ; Rezende, Mirabel C. [1] ; Botelho, Edson C. [2]
Total Authors: 7
Affiliation:
[1] Univ Fed Sao Paulo, Inst Ciencia & Tecnol, Sao Jose Dos Campos, SP - Brazil
[2] Univ Estadual Paulista, Dept Mat & Tecnol, Guaratinguete, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Journal of Applied Polymer Science; v. 137, n. 5 AUG 2019.
Web of Science Citations: 0
Abstract

Vacuum filtration technique was employed in order to prepare multiwalled carbon nanotube buckypapers (MWCNT-BP) through a well-dispersed suspension of MWCNT/H2O with the aid of Triton X-100 surfactant. The obtained BP (buckypaper) was then infiltrated with a solution of poly (ether-imide) (PEI) under vacuum conditions. The visual inspection demonstrated the importance of the centrifugation procedure before the vacuum filtration of the suspension, revealing a smooth surface of the as-prepared buckypaper. Thermogravimetric experiments (TGA) and scanning electron microscopy analyses have demonstrated the role of isopropyl alcohol in the removal of Triton X-100 from the nanotube network. SEM observations of the cross-section view of the samples revealed a porous network of the fabricated BP, and an impregnated structure of the PEI/BP composite, suggesting a good interfacial bonding between MWCNT and PEI. Moreover, significant improvements were achieved in mechanical and thermal properties of PEI matrix by the incorporation of BP, as the increase of both the storage modulus (42%) and the T-g (11 degrees C) for the PEI/BP composite. TGA have shown a significant increase in the onset decomposition temperature of the polymer by the incorporation of the BP. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48330. (AU)

FAPESP's process: 17/04740-0 - PREPARATION AND CHARACTERIZATION OF MULTIFUNCTIONAL NANOSTRUCTURED COMPOSITES BASED ON GLASS FIBER/EPOXI RESIN/CARBON NANOTUBE BUCKYPAPER LAMINATE
Grantee:Bruno Ribeiro
Support type: Scholarships in Brazil - Post-Doctorate