The effect of multi-wall carbon nanotube morphology on electrical and mechanical properties of polyurethane nanocomposites

Jatin Sethi; Essi Sarlin; Seyyed Shayan Meysami; Reija Suihkonen; Arunjunai Raja Shankar Santha Kumar; Mari Honkanen; Pasi Keinänen; Nicole Grobert; Jyrki Vuorinen

doi:10.1016/j.compositesa.2017.08.014

The effect of multi-wall carbon nanotube morphology on electrical and mechanical properties of polyurethane nanocomposites

Jatin Sethi, Essi Sarlin, Seyyed Shayan Meysami, Reija Suihkonen, Arunjunai Raja Shankar Santha Kumar, Mari Honkanen, Pasi Keinänen, Nicole Grobert, Jyrki Vuorinen

Research output: Contribution to journal › Article › Scientific › peer-review

34 Citations (Scopus)

Abstract

In this study, we examine the effect of multi-wall carbon nanotubes (MWCNT) morphology on electrical and mechanical properties of MWCNT-filled polyurethane (PU) nanocomposites. The main objective of this study is to understand the role of aspect ratio and length of MWCNTs in determining the performance of nanocomposites. Highly aligned MWCNTs were prepared by aerosol-assisted chemical vapour deposition method and compared to commercially available MWCNTs in PU matrix for ease of dispersibility and performance. We observed opposing influence of the MWCNT on electrical and mechanical behaviour of the nanocomposites. The electrical properties were proportional to length of the MWCNTs whereas the mechanical properties were dependent on the aspect ratio of the MWCNTs. Moreover, thicker nanotubes (approximately 40 nm) with a higher aspect ratio (approximately 225) are less prone to shortening and impart better tensile and storage modulus along with improved electrical and therefore are more suitable for the MWCNT nanocomposites.

Original language	English
Pages (from-to)	305-313
Number of pages	9
Journal	Composites Part A: Applied Science and Manufacturing
Volume	102
DOIs	https://doi.org/10.1016/j.compositesa.2017.08.014
Publication status	Published - 1 Nov 2017
Publication type	A1 Journal article-refereed

Keywords

A. Carbon nanotubes and nanofibres
A. Nanocomposites
B. Electrical properties
B. Mechanical properties

Publication forum classification

Publication forum level 2

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials

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10.1016/j.compositesa.2017.08.014

Cite this

Sethi, J., Sarlin, E., Meysami, S. S., Suihkonen, R., Santha Kumar, A. R. S., Honkanen, M., Keinänen, P., Grobert, N., & Vuorinen, J. (2017). The effect of multi-wall carbon nanotube morphology on electrical and mechanical properties of polyurethane nanocomposites. Composites Part A: Applied Science and Manufacturing, 102, 305-313. https://doi.org/10.1016/j.compositesa.2017.08.014

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Sethi, J, Sarlin, E, Meysami, SS, Suihkonen, R, Santha Kumar, ARS, Honkanen, M, Keinänen, P, Grobert, N & Vuorinen, J 2017, 'The effect of multi-wall carbon nanotube morphology on electrical and mechanical properties of polyurethane nanocomposites', Composites Part A: Applied Science and Manufacturing, vol. 102, pp. 305-313. https://doi.org/10.1016/j.compositesa.2017.08.014

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AU - Sethi, Jatin

AU - Sarlin, Essi

AU - Meysami, Seyyed Shayan

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AU - Santha Kumar, Arunjunai Raja Shankar

AU - Honkanen, Mari

AU - Keinänen, Pasi

AU - Grobert, Nicole

AU - Vuorinen, Jyrki

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AB - In this study, we examine the effect of multi-wall carbon nanotubes (MWCNT) morphology on electrical and mechanical properties of MWCNT-filled polyurethane (PU) nanocomposites. The main objective of this study is to understand the role of aspect ratio and length of MWCNTs in determining the performance of nanocomposites. Highly aligned MWCNTs were prepared by aerosol-assisted chemical vapour deposition method and compared to commercially available MWCNTs in PU matrix for ease of dispersibility and performance. We observed opposing influence of the MWCNT on electrical and mechanical behaviour of the nanocomposites. The electrical properties were proportional to length of the MWCNTs whereas the mechanical properties were dependent on the aspect ratio of the MWCNTs. Moreover, thicker nanotubes (approximately 40 nm) with a higher aspect ratio (approximately 225) are less prone to shortening and impart better tensile and storage modulus along with improved electrical and therefore are more suitable for the MWCNT nanocomposites.

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The effect of multi-wall carbon nanotube morphology on electrical and mechanical properties of polyurethane nanocomposites

Abstract

Keywords

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