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Nanogrooved Carbon Microtubes for Wet Three-Dimensional Printing of Conductive Composite Structures

Lookup NU author(s): Dr Shayan SeyedinORCiD

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Abstract

Recent advances in three‐dimensional (3D) printing have enabled the fabrication of interesting structures which are not achievable using traditional fabrication approaches. The 3D printing of carbon microtube composite inks allows fabrication of conductive structures for practical applications in soft robotics and tissue engineering. However, it is challenging to achieve 3D printed structures from solution‐based composite inks, which requires an additional process to solidify the ink. Here, we introduce a wet 3D printing technique which uses a coagulation bath to fabricate carbon microtube composite structures. We show that through a facile nanogrooving approach which introduces cavitation and channels on carbon microtubes, enhanced interfacial interactions with a chitosan polymer matrix are achieved. Consequently, the mechanical properties of the 3D printed composites improve when nanogrooved carbon microtubes are used, compared to untreated microtubes. We show that by carefully controlling the coagulation bath, extrusion pressure, printing distance and printed line distance, we can 3D print composite lattices which are composed of well‐defined and separated printed lines. The conductive composite 3D structures with highly customised design presented in this work provide a suitable platform for applications ranging from soft robotics to smart tissue engineering scaffolds.

Publication metadata

Author(s): Nasri-Nasrabadi B, Kaynak A, Seyedin S, Komeily-Nia Z, Kouzani AZ

Publication type: Article

Publication status: Published

Journal: Polymer International

Year: 2019

Volume: 68

Issue: 5

Pages: 922-928

Print publication date: 01/05/2019

Online publication date: 25/01/2019

Acceptance date: 21/01/2019

ISSN (print): 0959-8103

ISSN (electronic): 1097-0126

Publisher: Wiley

URL: https://doi.org/10.1002/pi.5782

DOI: 10.1002/pi.5782

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