Staff View: From carbon nanotubes and silicate layers to graphene platelets for polymer nanocomposites

From carbon nanotubes and silicate layers to graphene platelets for polymer nanocomposites

In spite of extensive studies conducted on carbon nanotubes and silicate layers for their polymer-based nanocomposites, the rise of graphene now provides a more promising candidate due to its exceptionally high mechanical performance and electrical and thermal conductivities. The present study devel...

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Main Authors:	Zaman - izzuddin@uthm.edu.my, Izzuddin, Kuan, Hsu-Chiang, Dai, Jingfei, Nobuyuki, Kawashima, Michelmore, Andrew, Sovi, Alex, Dong, Songyi, Lee, Luong, Jun, Ma
Format:	Article
Language:	English
Published:	The Royal Society of Chemistry 2012
Subjects:	TP1080-1185 Polymers and polymer manufacture
Online Access:	http://eprints.uthm.edu.my/5645/1/AJ%202017%20%28873%29.pdf http://eprints.uthm.edu.my/5645/ https://dx.doi.org/10.1039/c2nr30837a
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spelling	my.uthm.eprints.56452022-01-19T07:27:21Z http://eprints.uthm.edu.my/5645/ From carbon nanotubes and silicate layers to graphene platelets for polymer nanocomposites Zaman - izzuddin@uthm.edu.my, Izzuddin Kuan, Hsu-Chiang Dai, Jingfei Nobuyuki, Kawashima Michelmore, Andrew Sovi, Alex Dong, Songyi Lee, Luong Jun, Ma TP1080-1185 Polymers and polymer manufacture In spite of extensive studies conducted on carbon nanotubes and silicate layers for their polymer-based nanocomposites, the rise of graphene now provides a more promising candidate due to its exceptionally high mechanical performance and electrical and thermal conductivities. The present study developed a facile approach to fabricate epoxy–graphene nanocomposites by thermally expanding a commercial product followed by ultrasonication and solution-compounding with epoxy, and investigated their morphologies, mechanical properties, electrical conductivity and thermal mechanical behaviour. Graphene platelets (GnPs) of 3.57 0.50 nm in thickness were created after the expanded product was dispersed in tetrahydrofuran using 60 min ultrasonication. Since epoxy resins cured by various hardeners are widely used in industries, we chose two common hardeners: polyoxypropylene (J230) and 4,40 -diaminodiphenylsulfone (DDS). DDS-cured nanocomposites showed a better dispersion and exfoliation of GnPs, a higher improvement (573%) in fracture energy release rate and a lower percolation threshold (0.612 vol%) for electrical conductivity, because DDS contains benzene groups which create p–p interactions with GnPs promoting a higher degree of dispersion and exfoliation of GnPs during curing. This research pointed out a potential trend where GnPs would replace carbon nanotubes and silicate layers for many applications of polymer nanocomposites. The Royal Society of Chemistry 2012 Article PeerReviewed text en http://eprints.uthm.edu.my/5645/1/AJ%202017%20%28873%29.pdf Zaman - izzuddin@uthm.edu.my, Izzuddin and Kuan, Hsu-Chiang and Dai, Jingfei and Nobuyuki, Kawashima and Michelmore, Andrew and Sovi, Alex and Dong, Songyi and Lee, Luong and Jun, Ma (2012) From carbon nanotubes and silicate layers to graphene platelets for polymer nanocomposites. Nanoscale, 4 (NIL). pp. 4578-4586. ISSN 2040-3364 https://dx.doi.org/10.1039/c2nr30837a
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	TP1080-1185 Polymers and polymer manufacture
spellingShingle	TP1080-1185 Polymers and polymer manufacture Zaman - izzuddin@uthm.edu.my, Izzuddin Kuan, Hsu-Chiang Dai, Jingfei Nobuyuki, Kawashima Michelmore, Andrew Sovi, Alex Dong, Songyi Lee, Luong Jun, Ma From carbon nanotubes and silicate layers to graphene platelets for polymer nanocomposites
description	In spite of extensive studies conducted on carbon nanotubes and silicate layers for their polymer-based nanocomposites, the rise of graphene now provides a more promising candidate due to its exceptionally high mechanical performance and electrical and thermal conductivities. The present study developed a facile approach to fabricate epoxy–graphene nanocomposites by thermally expanding a commercial product followed by ultrasonication and solution-compounding with epoxy, and investigated their morphologies, mechanical properties, electrical conductivity and thermal mechanical behaviour. Graphene platelets (GnPs) of 3.57 0.50 nm in thickness were created after the expanded product was dispersed in tetrahydrofuran using 60 min ultrasonication. Since epoxy resins cured by various hardeners are widely used in industries, we chose two common hardeners: polyoxypropylene (J230) and 4,40 -diaminodiphenylsulfone (DDS). DDS-cured nanocomposites showed a better dispersion and exfoliation of GnPs, a higher improvement (573%) in fracture energy release rate and a lower percolation threshold (0.612 vol%) for electrical conductivity, because DDS contains benzene groups which create p–p interactions with GnPs promoting a higher degree of dispersion and exfoliation of GnPs during curing. This research pointed out a potential trend where GnPs would replace carbon nanotubes and silicate layers for many applications of polymer nanocomposites.
format	Article
author	Zaman - izzuddin@uthm.edu.my, Izzuddin Kuan, Hsu-Chiang Dai, Jingfei Nobuyuki, Kawashima Michelmore, Andrew Sovi, Alex Dong, Songyi Lee, Luong Jun, Ma
author_facet	Zaman - izzuddin@uthm.edu.my, Izzuddin Kuan, Hsu-Chiang Dai, Jingfei Nobuyuki, Kawashima Michelmore, Andrew Sovi, Alex Dong, Songyi Lee, Luong Jun, Ma
author_sort	Zaman - izzuddin@uthm.edu.my, Izzuddin
title	From carbon nanotubes and silicate layers to graphene platelets for polymer nanocomposites
title_short	From carbon nanotubes and silicate layers to graphene platelets for polymer nanocomposites
title_full	From carbon nanotubes and silicate layers to graphene platelets for polymer nanocomposites
title_fullStr	From carbon nanotubes and silicate layers to graphene platelets for polymer nanocomposites
title_full_unstemmed	From carbon nanotubes and silicate layers to graphene platelets for polymer nanocomposites
title_sort	from carbon nanotubes and silicate layers to graphene platelets for polymer nanocomposites
publisher	The Royal Society of Chemistry
publishDate	2012
url	http://eprints.uthm.edu.my/5645/1/AJ%202017%20%28873%29.pdf http://eprints.uthm.edu.my/5645/ https://dx.doi.org/10.1039/c2nr30837a
_version_	1738581400718671872
score	13.211869

From carbon nanotubes and silicate layers to graphene platelets for polymer nanocomposites

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