Multifunctional nanocomposites based on a polyamide 6/polyamide 12 blend and multi‐walled carbon nanotubes

T. Arnal; P. Eisenberg; M. J. Abad; A. Ares‐Pernas; Celina Raquel Bernal

doi:10.1002/pen.26611

journal article Feb 04, 2024

Multifunctional nanocomposites based on a polyamide 6/polyamide 12 blend and multi‐walled carbon nanotubes

T. Arnal

P. Eisenberg M. J. Abad A. Ares‐Pernas Celina Raquel Bernal

Polymer Engineering & Science Vol. 64 No. 3 pp. 1246-1257 · Wiley

View at Publisher Save 10.1002/pen.26611

Abstract

AbstractNanocomposites based on an immiscible blend of polyamide 6 (PA6) and polyamide 12 (PA12) 50/50 wt.% with different contents of multi‐walled carbon nanotubes (MWCNTs) were prepared by extrusion followed by compression molding. These materials have been proved to be electrically conductive in previous investigations for the range of filler content assayed. The morphology of the nanocomposites was analyzed using scanning electron microscopy, both on cryo‐fractured and postmortem uniaxial tensile samples. Rheological measurements were performed along with differential scanning calorimetry, to assess the materials microstructure and thermal transitions. Furthermore, uniaxial tensile tests were carried out to determine mechanical properties such as stiffness, strength, and strain at break and to investigate the effect of MWCNTs on these properties. Finally, fracture tests were also conducted to evaluate how incorporating MWCNTs affected nanocomposites toughening capabilities. The obtained results suggest a notable improvement in the mechanical properties in the nanocomposites with low amounts of nanofiller. This expands their potential applications as conductive polymer composites (CPCs) and positions them as promising multifunctional materials.Highlights
CPCs based on a PA blend and MWCNTs were successfully obtained.
CNTs strongly affected the blend morphology and rheological properties.
CNTs significantly modified the crystallization behavior of PA6.
Ductility greatly improved at low CNT contents but decreased at high loadings.
Stiffness increased steadily with increasing CNT content.

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Metrics

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Citations

41

References

Details

Published: Feb 04, 2024
Vol/Issue: 64(3)
Pages: 1246-1257
License: View

Authors

T

T. Arnal

Universidad de Buenos Aires Facultad de Ingeniería Buenos Aires Argentina; CONICET – Universidad de Buenos Aires Instituto de Tecnología en Polímeros y Nanotecnología (ITPN) Buenos Aires Argentina

P

P. Eisenberg

Instituto de Investigación e Ingeniería Ambiental 3iA, EHyS Universidad Nacional de San Martín Buenos Aires Argentina

M

M. J. Abad

Universidade da Coruña, Campus Industrial de Ferrol, CITENI‐Grupo de Polímeros A Coruña Spain

A

A. Ares‐Pernas

Universidade da Coruña, Campus Industrial de Ferrol, CITENI‐Grupo de Polímeros A Coruña Spain

C

Celina Raquel Bernal

Universidad de Buenos Aires Facultad de Ingeniería Buenos Aires Argentina; CONICET – Universidad de Buenos Aires Instituto de Tecnología en Polímeros y Nanotecnología (ITPN) Buenos Aires Argentina

Funding

Agencia Nacional de Promoción Científica y Tecnológica Award: PICT 2018 4217

Universidad de Buenos Aires Award: UBACyT 2023 20020220100207BA

Cite This Article

T. Arnal, P. Eisenberg, M. J. Abad, et al. (2024). Multifunctional nanocomposites based on a polyamide 6/polyamide 12 blend and multi‐walled carbon nanotubes. Polymer Engineering & Science, 64(3), 1246-1257. https://doi.org/10.1002/pen.26611

Multifunctional nanocomposites based on a polyamide 6/polyamide 12 blend and multi‐walled carbon nanotubes

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