Influence of surfactant type on the dispersion state and properties of graphene nanoplatelets reinforced aluminium matrix nanocomposites

Graphene dispersion in aluminium matrix is a critical concern for the attainment of composite improved mechanical and tribological properties which hinders broad applications of Al nanocomposites. Herein, graphene nanoplatelets (GNPs) dispersion in Al matrix achieved by colloidal processing, i.e., c...

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Main Authors: Baig, Z., Mamat, O., Mustapha, M., Sarfraz, M.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.19364 /
Published: Taylor and Francis Inc. 2017
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85033450399&doi=10.1080%2f1536383X.2017.1362396&partnerID=40&md5=7b884ac374dc6b9e93de96cef0fd2bf8
http://eprints.utp.edu.my/19364/
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spelling utp-eprints.193642018-04-20T00:25:50Z Influence of surfactant type on the dispersion state and properties of graphene nanoplatelets reinforced aluminium matrix nanocomposites Baig, Z. Mamat, O. Mustapha, M. Sarfraz, M. Graphene dispersion in aluminium matrix is a critical concern for the attainment of composite improved mechanical and tribological properties which hinders broad applications of Al nanocomposites. Herein, graphene nanoplatelets (GNPs) dispersion in Al matrix achieved by colloidal processing, i.e., combining sonication and surfactant dispersing aid. In this work, the performance of the two types of surfactant (anionic, sodium dodecyl benzene sulfonate (SDBS), and nonionic polymeric, ethyl cellulose (EC)) were evaluated for effective GNPs dispersion in a solvent and Al matrix. Surfactant assisted GNPs solvent dispersion characterized through sedimentation test and UV-vis spectroscopy to optimize surfactant concentration. Density, hardness, wear properties and microstructural characterizations of GNPs/Al powder and sintered discs were performed to gauge the effect of surfactant type. It was found that surfactant addition enhances dispersion ability of GNPs than neat GNPs but at low GNPs fractions. The results show that EC assisted GNPs/Al nanocomposites of 0.5 wt GNPs concentration has shown an increase in hardness (31) and reduce wear rate (98). Whereas, 0.3 wt SDBS assisted GNPs/Al nanocomposites shown maximal increases in hardness (18) and reduce wear rate (98) as compared to pure aluminium, respectively. Conclusively, it has been revealed that polymeric EC based surfactant GNPs owing to steric repulsion shows better dispersion effect resulting in high density and improved wear resistance and performed better than SDBS based surfactant GNPs in Al matrix. © 2017 Taylor & Francis Group, LLC. Taylor and Francis Inc. 2017 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85033450399&doi=10.1080%2f1536383X.2017.1362396&partnerID=40&md5=7b884ac374dc6b9e93de96cef0fd2bf8 Baig, Z. and Mamat, O. and Mustapha, M. and Sarfraz, M. (2017) Influence of surfactant type on the dispersion state and properties of graphene nanoplatelets reinforced aluminium matrix nanocomposites. Fullerenes Nanotubes and Carbon Nanostructures, 25 (9). pp. 545-557. http://eprints.utp.edu.my/19364/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Graphene dispersion in aluminium matrix is a critical concern for the attainment of composite improved mechanical and tribological properties which hinders broad applications of Al nanocomposites. Herein, graphene nanoplatelets (GNPs) dispersion in Al matrix achieved by colloidal processing, i.e., combining sonication and surfactant dispersing aid. In this work, the performance of the two types of surfactant (anionic, sodium dodecyl benzene sulfonate (SDBS), and nonionic polymeric, ethyl cellulose (EC)) were evaluated for effective GNPs dispersion in a solvent and Al matrix. Surfactant assisted GNPs solvent dispersion characterized through sedimentation test and UV-vis spectroscopy to optimize surfactant concentration. Density, hardness, wear properties and microstructural characterizations of GNPs/Al powder and sintered discs were performed to gauge the effect of surfactant type. It was found that surfactant addition enhances dispersion ability of GNPs than neat GNPs but at low GNPs fractions. The results show that EC assisted GNPs/Al nanocomposites of 0.5 wt GNPs concentration has shown an increase in hardness (31) and reduce wear rate (98). Whereas, 0.3 wt SDBS assisted GNPs/Al nanocomposites shown maximal increases in hardness (18) and reduce wear rate (98) as compared to pure aluminium, respectively. Conclusively, it has been revealed that polymeric EC based surfactant GNPs owing to steric repulsion shows better dispersion effect resulting in high density and improved wear resistance and performed better than SDBS based surfactant GNPs in Al matrix. © 2017 Taylor & Francis Group, LLC.
format Article
author Baig, Z.
Mamat, O.
Mustapha, M.
Sarfraz, M.
spellingShingle Baig, Z.
Mamat, O.
Mustapha, M.
Sarfraz, M.
Influence of surfactant type on the dispersion state and properties of graphene nanoplatelets reinforced aluminium matrix nanocomposites
author_sort Baig, Z.
title Influence of surfactant type on the dispersion state and properties of graphene nanoplatelets reinforced aluminium matrix nanocomposites
title_short Influence of surfactant type on the dispersion state and properties of graphene nanoplatelets reinforced aluminium matrix nanocomposites
title_full Influence of surfactant type on the dispersion state and properties of graphene nanoplatelets reinforced aluminium matrix nanocomposites
title_fullStr Influence of surfactant type on the dispersion state and properties of graphene nanoplatelets reinforced aluminium matrix nanocomposites
title_full_unstemmed Influence of surfactant type on the dispersion state and properties of graphene nanoplatelets reinforced aluminium matrix nanocomposites
title_sort influence of surfactant type on the dispersion state and properties of graphene nanoplatelets reinforced aluminium matrix nanocomposites
publisher Taylor and Francis Inc.
publishDate 2017
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85033450399&doi=10.1080%2f1536383X.2017.1362396&partnerID=40&md5=7b884ac374dc6b9e93de96cef0fd2bf8
http://eprints.utp.edu.my/19364/
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score 11.62408

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