Microstructure of fibres pressure-spun from polyacrylonitrile–graphene oxide composite mixtures

Amalina Amir; Harshit Porwal; Suntharavathanan Mahalingam; Xiaowen Wu; Tongfei Wu; Biqiong Chen; Tanveer A. Tabish; Mohan Edirisinghe

doi:10.1016/j.compscitech.2020.108214

Microstructure of fibres pressure-spun from polyacrylonitrile–graphene oxide composite mixtures

Amalina Amir, Harshit Porwal, Suntharavathanan Mahalingam, Xiaowen Wu, Tongfei Wu, Biqiong Chen, Tanveer A. Tabish, Mohan Edirisinghe^*

^*Corresponding author for this work

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

6 Citations (Scopus)

118 Downloads (Pure)

Abstract

Suspensions containing 8 and 10 wt% polyacrylonitrile (PAN) and 1, 2, 3, 5, 7 and 10 wt% graphene oxide (GO) were prepared using a special mixing routine and fibres were generated from these mixtures by pressurised gyration. The combination of pressure and gyration speed was effective in controlling the fibre morphology and fibre diameter which ranged from 1 to 20 μm. Fibres were pyrolysed to remove the polymer and only the 10 wt% PAN fibres survived. The microstructure of the pre- and post-pyrolysis products were characterised by scanning electron microscopy, both with and without focussed ion beam etching, Fourier-transformed infrared and Raman spectroscopies. Pyrolysed fibre electrical conductivities were measured and only those containing 1 and 2 wt% GO were conductive.

Original language	English
Article number	108214
Journal	Composites Science and Technology
Volume	197
Early online date	11 May 2020
DOIs	https://doi.org/10.1016/j.compscitech.2020.108214
Publication status	Published - 08 Sept 2020

ASJC Scopus subject areas

Ceramics and Composites
General Engineering

Access to Document

10.1016/j.compscitech.2020.108214Licence: Unspecified

Microstructure of fibres pressure-spun from polyacrylonitrile–graphene oxide composite mixtures
Copyright 2020 Elsevier. This manuscript is distributed under a Creative Commons Attribution-NonCommercial-NoDerivs License (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits distribution and reproduction for non-commercial purposes, provided the author and source are cited.
Accepted author manuscript, 3.81 MBLicence: Unspecified

Cite this

@article{7a51cde3b55a4873bbd21e2414733727,

title = "Microstructure of fibres pressure-spun from polyacrylonitrile–graphene oxide composite mixtures",

abstract = "Suspensions containing 8 and 10 wt% polyacrylonitrile (PAN) and 1, 2, 3, 5, 7 and 10 wt% graphene oxide (GO) were prepared using a special mixing routine and fibres were generated from these mixtures by pressurised gyration. The combination of pressure and gyration speed was effective in controlling the fibre morphology and fibre diameter which ranged from 1 to 20 μm. Fibres were pyrolysed to remove the polymer and only the 10 wt% PAN fibres survived. The microstructure of the pre- and post-pyrolysis products were characterised by scanning electron microscopy, both with and without focussed ion beam etching, Fourier-transformed infrared and Raman spectroscopies. Pyrolysed fibre electrical conductivities were measured and only those containing 1 and 2 wt% GO were conductive.",

author = "Amalina Amir and Harshit Porwal and Suntharavathanan Mahalingam and Xiaowen Wu and Tongfei Wu and Biqiong Chen and Tabish, {Tanveer A.} and Mohan Edirisinghe",

year = "2020",

month = sep,

day = "8",

doi = "10.1016/j.compscitech.2020.108214",

language = "English",

volume = "197",

journal = "Composites Science and Technology",

issn = "0266-3538",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Microstructure of fibres pressure-spun from polyacrylonitrile–graphene oxide composite mixtures

AU - Amir, Amalina

AU - Porwal, Harshit

AU - Mahalingam, Suntharavathanan

AU - Wu, Xiaowen

AU - Wu, Tongfei

AU - Chen, Biqiong

AU - Tabish, Tanveer A.

AU - Edirisinghe, Mohan

PY - 2020/9/8

Y1 - 2020/9/8

N2 - Suspensions containing 8 and 10 wt% polyacrylonitrile (PAN) and 1, 2, 3, 5, 7 and 10 wt% graphene oxide (GO) were prepared using a special mixing routine and fibres were generated from these mixtures by pressurised gyration. The combination of pressure and gyration speed was effective in controlling the fibre morphology and fibre diameter which ranged from 1 to 20 μm. Fibres were pyrolysed to remove the polymer and only the 10 wt% PAN fibres survived. The microstructure of the pre- and post-pyrolysis products were characterised by scanning electron microscopy, both with and without focussed ion beam etching, Fourier-transformed infrared and Raman spectroscopies. Pyrolysed fibre electrical conductivities were measured and only those containing 1 and 2 wt% GO were conductive.

AB - Suspensions containing 8 and 10 wt% polyacrylonitrile (PAN) and 1, 2, 3, 5, 7 and 10 wt% graphene oxide (GO) were prepared using a special mixing routine and fibres were generated from these mixtures by pressurised gyration. The combination of pressure and gyration speed was effective in controlling the fibre morphology and fibre diameter which ranged from 1 to 20 μm. Fibres were pyrolysed to remove the polymer and only the 10 wt% PAN fibres survived. The microstructure of the pre- and post-pyrolysis products were characterised by scanning electron microscopy, both with and without focussed ion beam etching, Fourier-transformed infrared and Raman spectroscopies. Pyrolysed fibre electrical conductivities were measured and only those containing 1 and 2 wt% GO were conductive.

U2 - 10.1016/j.compscitech.2020.108214

DO - 10.1016/j.compscitech.2020.108214

M3 - Article

AN - SCOPUS:85086071142

SN - 0266-3538

VL - 197

JO - Composites Science and Technology

JF - Composites Science and Technology

M1 - 108214

ER -

Microstructure of fibres pressure-spun from polyacrylonitrile–graphene oxide composite mixtures

Abstract

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this