Toughening of epoxies by covalently anchoring triazole-functionalized stacked-cup carbon nanofibers

Novel triazole-functionalized carbon nanofibers (m-CNFs) were prepared by one-step arylation with diazonium salts generated in situ. Microscopic observations indicate that m-CNFs exhibit significantly improved dispersibility in a high-performance epoxy resin compared with pristine CNFs (p-CNFs). The...

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Main Authors: Ding, Guoqiang, Huang, Shu, Dong, Yuliang, Lu, Xuehong, Liu, Wanshuang, Kong, Junhua, Toh, Eric Weilong, Zhou, Rui
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2013
Online Access:https://hdl.handle.net/10356/96761
http://hdl.handle.net/10220/10664
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-967612023-07-14T15:45:30Z Toughening of epoxies by covalently anchoring triazole-functionalized stacked-cup carbon nanofibers Ding, Guoqiang Huang, Shu Dong, Yuliang Lu, Xuehong Liu, Wanshuang Kong, Junhua Toh, Eric Weilong Zhou, Rui School of Materials Science & Engineering Novel triazole-functionalized carbon nanofibers (m-CNFs) were prepared by one-step arylation with diazonium salts generated in situ. Microscopic observations indicate that m-CNFs exhibit significantly improved dispersibility in a high-performance epoxy resin compared with pristine CNFs (p-CNFs). The results of DSC and SEM show evidence of interfacial reaction and a more robust interface between m-CNFs and the epoxy matrix. Thermal and mechanical properties of two CNF/epoxy composites were systematically studied at different filler loadings. The results show that both CNF fillers could reinforce the epoxy matrix without sacrificing their thermal properties. Benefiting from the improved dispersibility and interfacial interaction, the ability of m-CNFs in toughening the epoxy resin is clearly superior to p-CNFs. The addition of only 0.4 wt% m-CNFs gives 41 and 80% enhancement in critical stress intensity factor (KIC) and the critical strain energy release rate (GIC), respectively. Accepted version 2013-06-25T08:04:17Z 2019-12-06T19:34:43Z 2013-06-25T08:04:17Z 2019-12-06T19:34:43Z 2013 2013 Journal Article Liu, W., Kong, J., Toh, E. W., Zhou, R., Ding, G., Huang, S., et al. (2013). Toughening of epoxies by covalently anchoring triazole-functionalized stacked-cup carbon nanofibers. Composites Science and Technology, 85, 1-9. 0266-3538 https://hdl.handle.net/10356/96761 http://hdl.handle.net/10220/10664 10.1016/j.compscitech.2013.05.009 171907 en Composites science and technology © 2013 Elsevier Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Composites Science and Technology, Elsevier Ltd. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at DOI: [http://dx.doi.org/10.1016/j.compscitech.2013.05.009]. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
description Novel triazole-functionalized carbon nanofibers (m-CNFs) were prepared by one-step arylation with diazonium salts generated in situ. Microscopic observations indicate that m-CNFs exhibit significantly improved dispersibility in a high-performance epoxy resin compared with pristine CNFs (p-CNFs). The results of DSC and SEM show evidence of interfacial reaction and a more robust interface between m-CNFs and the epoxy matrix. Thermal and mechanical properties of two CNF/epoxy composites were systematically studied at different filler loadings. The results show that both CNF fillers could reinforce the epoxy matrix without sacrificing their thermal properties. Benefiting from the improved dispersibility and interfacial interaction, the ability of m-CNFs in toughening the epoxy resin is clearly superior to p-CNFs. The addition of only 0.4 wt% m-CNFs gives 41 and 80% enhancement in critical stress intensity factor (KIC) and the critical strain energy release rate (GIC), respectively.
author2 School of Materials Science & Engineering
author_facet School of Materials Science & Engineering
Ding, Guoqiang
Huang, Shu
Dong, Yuliang
Lu, Xuehong
Liu, Wanshuang
Kong, Junhua
Toh, Eric Weilong
Zhou, Rui
format Article
author Ding, Guoqiang
Huang, Shu
Dong, Yuliang
Lu, Xuehong
Liu, Wanshuang
Kong, Junhua
Toh, Eric Weilong
Zhou, Rui
spellingShingle Ding, Guoqiang
Huang, Shu
Dong, Yuliang
Lu, Xuehong
Liu, Wanshuang
Kong, Junhua
Toh, Eric Weilong
Zhou, Rui
Toughening of epoxies by covalently anchoring triazole-functionalized stacked-cup carbon nanofibers
author_sort Ding, Guoqiang
title Toughening of epoxies by covalently anchoring triazole-functionalized stacked-cup carbon nanofibers
title_short Toughening of epoxies by covalently anchoring triazole-functionalized stacked-cup carbon nanofibers
title_full Toughening of epoxies by covalently anchoring triazole-functionalized stacked-cup carbon nanofibers
title_fullStr Toughening of epoxies by covalently anchoring triazole-functionalized stacked-cup carbon nanofibers
title_full_unstemmed Toughening of epoxies by covalently anchoring triazole-functionalized stacked-cup carbon nanofibers
title_sort toughening of epoxies by covalently anchoring triazole-functionalized stacked-cup carbon nanofibers
publishDate 2013
url https://hdl.handle.net/10356/96761
http://hdl.handle.net/10220/10664
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