Preparation and characterization of poly(vinyl alcohol) / starchcomposite films reinforced with graphene and graphene oxide

The main objective of this research is to characterize the graphene oxide (GO) prepared by using modified Hummer‟s method with some modifications which was then used in the poly(vinyl alcohol) (PVA)/starch blends biocomposite film. Results from Fourier transform infrared, scanning electron microscop...

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Main Author:	Md. Tia, Sakinah
Format:	Thesis
Language:	English
Published:	2017
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/77902/1/SakinahMdTiaMFChE20171.pdf
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spelling	my-utm-ep.779022018-07-18T04:11:18Z Preparation and characterization of poly(vinyl alcohol) / starchcomposite films reinforced with graphene and graphene oxide 2017-03 Md. Tia, Sakinah TP Chemical technology The main objective of this research is to characterize the graphene oxide (GO) prepared by using modified Hummer‟s method with some modifications which was then used in the poly(vinyl alcohol) (PVA)/starch blends biocomposite film. Results from Fourier transform infrared, scanning electron microscopy-electron dispersive x-ray and x-ray diffraction analyses showed the presence of oxygen functional groups which confirmed the transformation of graphene (G) to GO. PVA/starch film was prepared via casting method at room temperature. The G and GO were added into PVA/starch film with different loadings from 0.5 to 4.0 wt% to determine the best optimum loading that would give the best result of mechanical, thermal and morphological properties. From the scanning electron microscopy, PVA/starch/GO film showed a smoother surface due to the GO filler being more uniformly dispersed in the matrix of PVA/starch film compared to G. The thermal properties, tensile strength, elongation at break and Young‟s modulus of PVA/starch/G and PVA/starch/GO films showed improvement with increasing filler loading until 2.0 wt%. However, PVA/starch/GO showed better improvements compared to PVA/starch/G. Water barrier properties analysis showed that PVA/starch/GO film had better water resistance than to PVA/starch/G film. From the soil burial test, the biodegradability of films showed that G and GO filler do not gave any significant influence on the biodegradability of film. The addition of 2.0 wt% of filler loading was found to be the best loading to improve the properties of the films, with PVA/starch/GO showed better properties compared to PVA/starch/G film. 2017-03 Thesis http://eprints.utm.my/id/eprint/77902/ http://eprints.utm.my/id/eprint/77902/1/SakinahMdTiaMFChE20171.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:105153 masters Universiti Teknologi Malaysia, Faculty of Chemical and Energy Engineering Faculty of Chemical and Energy Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Md. Tia, Sakinah Preparation and characterization of poly(vinyl alcohol) / starchcomposite films reinforced with graphene and graphene oxide
description	The main objective of this research is to characterize the graphene oxide (GO) prepared by using modified Hummer‟s method with some modifications which was then used in the poly(vinyl alcohol) (PVA)/starch blends biocomposite film. Results from Fourier transform infrared, scanning electron microscopy-electron dispersive x-ray and x-ray diffraction analyses showed the presence of oxygen functional groups which confirmed the transformation of graphene (G) to GO. PVA/starch film was prepared via casting method at room temperature. The G and GO were added into PVA/starch film with different loadings from 0.5 to 4.0 wt% to determine the best optimum loading that would give the best result of mechanical, thermal and morphological properties. From the scanning electron microscopy, PVA/starch/GO film showed a smoother surface due to the GO filler being more uniformly dispersed in the matrix of PVA/starch film compared to G. The thermal properties, tensile strength, elongation at break and Young‟s modulus of PVA/starch/G and PVA/starch/GO films showed improvement with increasing filler loading until 2.0 wt%. However, PVA/starch/GO showed better improvements compared to PVA/starch/G. Water barrier properties analysis showed that PVA/starch/GO film had better water resistance than to PVA/starch/G film. From the soil burial test, the biodegradability of films showed that G and GO filler do not gave any significant influence on the biodegradability of film. The addition of 2.0 wt% of filler loading was found to be the best loading to improve the properties of the films, with PVA/starch/GO showed better properties compared to PVA/starch/G film.
format	Thesis
qualification_level	Master's degree
author	Md. Tia, Sakinah
author_facet	Md. Tia, Sakinah
author_sort	Md. Tia, Sakinah
title	Preparation and characterization of poly(vinyl alcohol) / starchcomposite films reinforced with graphene and graphene oxide
title_short	Preparation and characterization of poly(vinyl alcohol) / starchcomposite films reinforced with graphene and graphene oxide
title_full	Preparation and characterization of poly(vinyl alcohol) / starchcomposite films reinforced with graphene and graphene oxide
title_fullStr	Preparation and characterization of poly(vinyl alcohol) / starchcomposite films reinforced with graphene and graphene oxide
title_full_unstemmed	Preparation and characterization of poly(vinyl alcohol) / starchcomposite films reinforced with graphene and graphene oxide
title_sort	preparation and characterization of poly(vinyl alcohol) / starchcomposite films reinforced with graphene and graphene oxide
granting_institution	Universiti Teknologi Malaysia, Faculty of Chemical and Energy Engineering
granting_department	Faculty of Chemical and Energy Engineering
publishDate	2017
url	http://eprints.utm.my/id/eprint/77902/1/SakinahMdTiaMFChE20171.pdf
_version_	1747817859061383168

Preparation and characterization of poly(vinyl alcohol) / starchcomposite films reinforced with graphene and graphene oxide

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