Competing Effects of Radio Frequency Fields on Carbon Nanotube/Resin Systems: Alignment versus Heating
Abstract: This work shows that radio‐frequency (RF) fields can simultaneously align carbon nanotubes (CNTs) dispersed in a resin and induce Joule heating to cure the resin. The timescales of alignment and curing using RF heating are numerically computed and compared at different field strengths in order to determine a temperature where alignment happens before the matrix crosslinks. Composites are experimentally fabricated at the desired target temperature and are optically analyzed and quantified; the CNT network is successfully aligned in the direction of the applied electric field. This methodology can be used to create composites where the local alignment can be varied across the sample. Composites fabricated using RF fields have higher electrical conductivity in the direction of the aligned CNTs than an oven‐cured, randomly aligned sample. Also, RF‐cured nanocomposites exhibit higher tensile strength and modulus in the direction of alignment compared to an oven‐cured sample. Finally, it is further demonstrated how this methodology can be coupled with a direct ink writing additive manufacturing process to induce alignment in any desired direction, even orthogonal to the shear forces in the extrusion direction.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Competing Effects of Radio Frequency Fields on Carbon Nanotube/Resin Systems: Alignment versus Heating ; day:19 ; month:07 ; year:2023 ; extent:9
Macromolecular materials and engineering ; (19.07.2023) (gesamt 9)
- Urheber
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Sarmah, Anubhav
Mee, Raymond D.
Arole, Kailash
Chi, David
Harkin, Ethan M.
Dasari, Smita Shivraj
Wright, Aniela J. K.
Tran, Thang Q.
Rout, Ankush
Green, Micah J.
- DOI
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10.1002/mame.202300174
- URN
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urn:nbn:de:101:1-2023072015230386573863
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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14.08.2025, 10:52 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Sarmah, Anubhav
- Mee, Raymond D.
- Arole, Kailash
- Chi, David
- Harkin, Ethan M.
- Dasari, Smita Shivraj
- Wright, Aniela J. K.
- Tran, Thang Q.
- Rout, Ankush
- Green, Micah J.
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