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Covalently bonded interfaces for polymer/graphene composites

The interface is well known for taking a critical role in the determination of the functional and mechanical properties of polymer composites. Previous interface research has focused on utilising reduced graphene oxide that is limited by a low structural integrity, which means a high fraction is nee...

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Main Authors:	Ma, Jun, Meng, Qingshi, Michelmore, Andrew, Kawashima, Nobuyuki, Izzuddin, Zaman, Bengtsson, Carl, Kuan, Hsu-Chiang
Format:	Article
Language:	English
Published:	The Royal Society of Chemistry 2013
Subjects:	TJ Mechanical engineering and machinery TA401-492 Materials of engineering and construction. Mechanics of materials
Online Access:	http://eprints.uthm.edu.my/4572/1/AJ%202017%20%28193%29%20Covalently%20bonded%20interfaces%20for%20polymer.pdf http://eprints.uthm.edu.my/4572/ http://dx.doi.org/10.1039/c3ta01277h
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spelling	my.uthm.eprints.45722021-12-07T07:48:29Z http://eprints.uthm.edu.my/4572/ Covalently bonded interfaces for polymer/graphene composites Ma, Jun Meng, Qingshi Michelmore, Andrew Kawashima, Nobuyuki Izzuddin, Zaman Bengtsson, Carl Kuan, Hsu-Chiang TJ Mechanical engineering and machinery TA401-492 Materials of engineering and construction. Mechanics of materials The interface is well known for taking a critical role in the determination of the functional and mechanical properties of polymer composites. Previous interface research has focused on utilising reduced graphene oxide that is limited by a low structural integrity, which means a high fraction is needed to produce electrically conductive composites. By using 4,40-diaminophenylsulfone, we in this study chemically modiﬁed high-structural integrity graphene platelets (GnPs) of 2–4 nm in thickness, covalently bonded GnPs with an epoxy matrix, and investigated the morphology and functional and mechanical performance of these composites. This covalently bonded interface prevented GnPs stacking in the matrix. In comparison with unmodiﬁed composites showing no reduction in electrical volume resistivity, the interface-modiﬁed composite at 0.489 vol% GnPs demonstrates an eight-order reduction in the resistivity, a 47.7% further improvement in modulus and 84.6% in fracture energy release rate. Comparison of GnPs with clay and multi-walled carbon nanotubes shows that our GnPs are more advantageous in terms of performance and cost. This study provides a novel method for developing interface-tuned polymer/graphene composites. The Royal Society of Chemistry 2013 Article PeerReviewed text en http://eprints.uthm.edu.my/4572/1/AJ%202017%20%28193%29%20Covalently%20bonded%20interfaces%20for%20polymer.pdf Ma, Jun and Meng, Qingshi and Michelmore, Andrew and Kawashima, Nobuyuki and Izzuddin, Zaman and Bengtsson, Carl and Kuan, Hsu-Chiang (2013) Covalently bonded interfaces for polymer/graphene composites. Journal of Materials Chemistry A: materials for energy and sustainability (Journal of Materials Chemistry A), 1. pp. 4255-4264. ISSN 2050-7488 http://dx.doi.org/10.1039/c3ta01277h
institution	Universiti Tun Hussein Onn Malaysia
building	UTHM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tun Hussein Onn Malaysia
content_source	UTHM Institutional Repository
url_provider	http://eprints.uthm.edu.my/
language	English
topic	TJ Mechanical engineering and machinery TA401-492 Materials of engineering and construction. Mechanics of materials
spellingShingle	TJ Mechanical engineering and machinery TA401-492 Materials of engineering and construction. Mechanics of materials Ma, Jun Meng, Qingshi Michelmore, Andrew Kawashima, Nobuyuki Izzuddin, Zaman Bengtsson, Carl Kuan, Hsu-Chiang Covalently bonded interfaces for polymer/graphene composites
description	The interface is well known for taking a critical role in the determination of the functional and mechanical properties of polymer composites. Previous interface research has focused on utilising reduced graphene oxide that is limited by a low structural integrity, which means a high fraction is needed to produce electrically conductive composites. By using 4,40-diaminophenylsulfone, we in this study chemically modiﬁed high-structural integrity graphene platelets (GnPs) of 2–4 nm in thickness, covalently bonded GnPs with an epoxy matrix, and investigated the morphology and functional and mechanical performance of these composites. This covalently bonded interface prevented GnPs stacking in the matrix. In comparison with unmodiﬁed composites showing no reduction in electrical volume resistivity, the interface-modiﬁed composite at 0.489 vol% GnPs demonstrates an eight-order reduction in the resistivity, a 47.7% further improvement in modulus and 84.6% in fracture energy release rate. Comparison of GnPs with clay and multi-walled carbon nanotubes shows that our GnPs are more advantageous in terms of performance and cost. This study provides a novel method for developing interface-tuned polymer/graphene composites.
format	Article
author	Ma, Jun Meng, Qingshi Michelmore, Andrew Kawashima, Nobuyuki Izzuddin, Zaman Bengtsson, Carl Kuan, Hsu-Chiang
author_facet	Ma, Jun Meng, Qingshi Michelmore, Andrew Kawashima, Nobuyuki Izzuddin, Zaman Bengtsson, Carl Kuan, Hsu-Chiang
author_sort	Ma, Jun
title	Covalently bonded interfaces for polymer/graphene composites
title_short	Covalently bonded interfaces for polymer/graphene composites
title_full	Covalently bonded interfaces for polymer/graphene composites
title_fullStr	Covalently bonded interfaces for polymer/graphene composites
title_full_unstemmed	Covalently bonded interfaces for polymer/graphene composites
title_sort	covalently bonded interfaces for polymer/graphene composites
publisher	The Royal Society of Chemistry
publishDate	2013
url	http://eprints.uthm.edu.my/4572/1/AJ%202017%20%28193%29%20Covalently%20bonded%20interfaces%20for%20polymer.pdf http://eprints.uthm.edu.my/4572/ http://dx.doi.org/10.1039/c3ta01277h
_version_	1738581268187054080
score	13.211869

Covalently bonded interfaces for polymer/graphene composites

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