Piezo-driven jet valve dispensing of carbon nanotube-loaded composites
Optimisation and characterisation
Publication date
2021-12-01
Document type
Forschungsartikel
Author
Genco, Taha
Linke, Max
Lammering, Rolf
Organisational unit
Publisher
Taylor & Francis
Series or journal
Nanocomposites
ISSN
Periodical volume
7
Periodical issue
1
First page
200
Last page
214
Peer-reviewed
✅
Part of the university bibliography
✅
Funding(s)
Language
English
Keyword
Carbon nanotube-based inks
Jet dispensing
Dispersion
Carbon nanotube-loaded composites
Electrical testing
Mechanical testing
Sheet resistance
Design of experiments
Abstract
A new class of single walled carbon nanotubes (SWCNT)/epoxy resin ink in dimethylacetamide is successfully printed using a piezo-driven jet valve dispensing system for the fabrication of flexible nanocomposites. The optimised ink prepared by solution mixing method with a viscosity (28.54 mPa⋅s), surface tension (31.3 mN/m), density (0.964 g/cm³), and 0.25 wt% SWCNT is obtained through design-of-experiments. The optimisation process is carried out focusing on the ink ejectability and the electrical properties of the resulting nanocomposites. An investigation of the electrical properties of the printed structures on glass and paper substrates is performed by analysing their sheet resistances. The resulting nanocomposite exhibits sheet resistances of 15 × 10² kΩ/sq and 0.11 kΩ/sq printed on glass and paper, respectively. Finally, the interlaminar fracture properties of the nanocomposites when integrated into glass fiber reinforced polymers are investigated. The median change of the energy release ratio GII,c is about 3%, with almost constant standard deviation.
Description
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/)
Version
Published version
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