Effect of graphene on mechanical properties and flame retardancy of polycarbonate/ acrylonitrile butadiene styrene nanocomposites

Polycarbonate/acrylonitrile butadiene styrene (PC/ABS) nanocomposite containing graphene nanoplatelets (GNPs) as a nanofiller and bisphenol A bis(diphenyl phosphate) (BDP) as a flame retardant was prepared using a counter-rotating twin-screw extruder followed by injection molding. The mechanical pro...

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Main Author:	Heidarpour, Raheleh
Format:	Thesis
Language:	English
Published:	2014
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/50824/25/RahelehHeidarpourMFChE2014.pdf
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spelling	my-utm-ep.508242020-07-13T01:13:53Z Effect of graphene on mechanical properties and flame retardancy of polycarbonate/ acrylonitrile butadiene styrene nanocomposites 2014-01 Heidarpour, Raheleh TP Chemical technology Polycarbonate/acrylonitrile butadiene styrene (PC/ABS) nanocomposite containing graphene nanoplatelets (GNPs) as a nanofiller and bisphenol A bis(diphenyl phosphate) (BDP) as a flame retardant was prepared using a counter-rotating twin-screw extruder followed by injection molding. The mechanical properties of the nanocomposites were studied through the tensile, flexural and impact testing. The thermal characteristics of the nanocomposites were evaluated through thermogravimetric analysis (TGA). The morphological behavior of the samples was observed via Field Emission Scanning Electron Microscopy (FESEM). The chemical structural of the PC/ABS nanocomposites were investigated by Fourier trans-form infrared (FTIR). Flammability of the nanocomposite has been measured using the Limiting Oxygen Index (LOI) and UL94. The tensile strength, Young's modulus and flexural properties of PC/ABS blend improved when GNPs and BDP was incorporated. The maximum tensile strength, Young's modulus and flexural properties have been observed for the nanocomposite with 3wt.% GNPs content. The thermal stability of PC/ABS/BDP and its nanocomposite were significantly improved compared with pure one, when the GNPs loading was only 1wt.% the 20% weight loss temperature (T10) increased 23 oC. The char residual of PC/ABS/GNPs3 dramatically increased by 64 % with incorporation of 10 wt.% BDP. A synergism in LOI and UL94 were observed for PC/ABS/GNPs3/ BDP10 compared to PC/ABS + BDP. FESEM results showed well dispersion of GNPs in PC/ABS blend. Besides the intercalation of GNPs was observed when BDP added to the nanocomposite. The FTIR spectra showed that the addition of GNPs in PC/ABS matrix did not result in any significant change in its chemical structure however some hydrogen bonding reactions between GNPs and PC/ABS blend is proposed. 2014-01 Thesis http://eprints.utm.my/id/eprint/50824/ http://eprints.utm.my/id/eprint/50824/25/RahelehHeidarpourMFChE2014.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:86918 masters Universiti Teknologi Malaysia, Faculty of Chemical Engineering Faculty of Chemical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Heidarpour, Raheleh Effect of graphene on mechanical properties and flame retardancy of polycarbonate/ acrylonitrile butadiene styrene nanocomposites
description	Polycarbonate/acrylonitrile butadiene styrene (PC/ABS) nanocomposite containing graphene nanoplatelets (GNPs) as a nanofiller and bisphenol A bis(diphenyl phosphate) (BDP) as a flame retardant was prepared using a counter-rotating twin-screw extruder followed by injection molding. The mechanical properties of the nanocomposites were studied through the tensile, flexural and impact testing. The thermal characteristics of the nanocomposites were evaluated through thermogravimetric analysis (TGA). The morphological behavior of the samples was observed via Field Emission Scanning Electron Microscopy (FESEM). The chemical structural of the PC/ABS nanocomposites were investigated by Fourier trans-form infrared (FTIR). Flammability of the nanocomposite has been measured using the Limiting Oxygen Index (LOI) and UL94. The tensile strength, Young's modulus and flexural properties of PC/ABS blend improved when GNPs and BDP was incorporated. The maximum tensile strength, Young's modulus and flexural properties have been observed for the nanocomposite with 3wt.% GNPs content. The thermal stability of PC/ABS/BDP and its nanocomposite were significantly improved compared with pure one, when the GNPs loading was only 1wt.% the 20% weight loss temperature (T10) increased 23 oC. The char residual of PC/ABS/GNPs3 dramatically increased by 64 % with incorporation of 10 wt.% BDP. A synergism in LOI and UL94 were observed for PC/ABS/GNPs3/ BDP10 compared to PC/ABS + BDP. FESEM results showed well dispersion of GNPs in PC/ABS blend. Besides the intercalation of GNPs was observed when BDP added to the nanocomposite. The FTIR spectra showed that the addition of GNPs in PC/ABS matrix did not result in any significant change in its chemical structure however some hydrogen bonding reactions between GNPs and PC/ABS blend is proposed.
format	Thesis
qualification_level	Master's degree
author	Heidarpour, Raheleh
author_facet	Heidarpour, Raheleh
author_sort	Heidarpour, Raheleh
title	Effect of graphene on mechanical properties and flame retardancy of polycarbonate/ acrylonitrile butadiene styrene nanocomposites
title_short	Effect of graphene on mechanical properties and flame retardancy of polycarbonate/ acrylonitrile butadiene styrene nanocomposites
title_full	Effect of graphene on mechanical properties and flame retardancy of polycarbonate/ acrylonitrile butadiene styrene nanocomposites
title_fullStr	Effect of graphene on mechanical properties and flame retardancy of polycarbonate/ acrylonitrile butadiene styrene nanocomposites
title_full_unstemmed	Effect of graphene on mechanical properties and flame retardancy of polycarbonate/ acrylonitrile butadiene styrene nanocomposites
title_sort	effect of graphene on mechanical properties and flame retardancy of polycarbonate/ acrylonitrile butadiene styrene nanocomposites
granting_institution	Universiti Teknologi Malaysia, Faculty of Chemical Engineering
granting_department	Faculty of Chemical Engineering
publishDate	2014
url	http://eprints.utm.my/id/eprint/50824/25/RahelehHeidarpourMFChE2014.pdf
_version_	1747817542746898432

Effect of graphene on mechanical properties and flame retardancy of polycarbonate/ acrylonitrile butadiene styrene nanocomposites

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