The mechanical, thermal and morphological properties of graphene nanoplatelets filled poly(lactic acid)/epoxidized palm oil blends / Buong Woei Chieng ... [et al.]

Poly(lactic acid) (PLA)-based nanocomposites filled with graphene nanoplatelets (xGnP) that contains epoxidized palm oil (EPO) as plasticizer were prepared by melt blending method. PLA was first plasticized by EPO to improve its flexibility and thereby overcome its problem of brittleness. Then, xGnP...

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Main Authors:	Buong, Woei Chieng, Ibrahim, Nor Azowa, Wan Yunus, Wan Md Zin, Hussein, Mohd Zobir
Format:	Article
Language:	English
Published:	Research Management Institute (RMI) 2014
Subjects:	Carbon disulfide. Graphene. Carbon Polylactic acid Plasticizers
Online Access:	http://ir.uitm.edu.my/id/eprint/12426/ http://ir.uitm.edu.my/id/eprint/12426/1/AJ_BUONG%20WOEI%20CHIENG%20SRJ%2014%201.pdf

id	uitm-12426
recordtype	eprints
spelling	uitm-124262016-05-26T02:30:22Z http://ir.uitm.edu.my/id/eprint/12426/ The mechanical, thermal and morphological properties of graphene nanoplatelets filled poly(lactic acid)/epoxidized palm oil blends / Buong Woei Chieng ... [et al.] Buong, Woei Chieng Ibrahim, Nor Azowa Wan Yunus, Wan Md Zin Hussein, Mohd Zobir Carbon disulfide. Graphene. Carbon Polylactic acid Plasticizers Poly(lactic acid) (PLA)-based nanocomposites filled with graphene nanoplatelets (xGnP) that contains epoxidized palm oil (EPO) as plasticizer were prepared by melt blending method. PLA was first plasticized by EPO to improve its flexibility and thereby overcome its problem of brittleness. Then, xGnP was incoporated into plasticized PLA to enhance its mechanical properties. Plasticized and nanofilled PLA nanocomposites (PLA/EPO/xGnP) showed improvement in the elongation at break by 3322% and 61% compared to pristine PLA and PLA/EPO, respectively. The use of EPO and xGnP increases the mobility of the polymeric chains, thereby improving the flexibility and plastic deformation of PLA. The nanocomposites also resulted in an increase of up to 26.5% in the tensile strength compared with PLA/EPO blend. XRD pattern showed the presence of peak around 26.5° in PLA/EPO/xGnP nanocomposites which corresponds to characteristic peak of graphene nanoplatelets. Plasticized PLA reinforced with xGnP showed that increasing the xGnP content triggers a substantial increase in thermal stability. Crystallinity of the nanocomposites as well as cold crystallization and melting temperature did not show any significant changes upon addition of xGnP. However, there was a significant decrease of glass transition temperature up to 0.3wt% of xGnP incorporation. The TEM micrograph of PLA/EPO/xGnP shows that the xGnP was uniformly dispersed in the PLA matrix and no obvious aggregation was observed. Research Management Institute (RMI) 2014 Article PeerReviewed text en http://ir.uitm.edu.my/id/eprint/12426/1/AJ_BUONG%20WOEI%20CHIENG%20SRJ%2014%201.pdf Buong, Woei Chieng and Ibrahim, Nor Azowa and Wan Yunus, Wan Md Zin and Hussein, Mohd Zobir (2014) The mechanical, thermal and morphological properties of graphene nanoplatelets filled poly(lactic acid)/epoxidized palm oil blends / Buong Woei Chieng ... [et al.]. Scientific Research Journal, 11 (2). pp. 1-13. ISSN 1675-7009
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	Carbon disulfide. Graphene. Carbon Polylactic acid Plasticizers
spellingShingle	Carbon disulfide. Graphene. Carbon Polylactic acid Plasticizers Buong, Woei Chieng Ibrahim, Nor Azowa Wan Yunus, Wan Md Zin Hussein, Mohd Zobir The mechanical, thermal and morphological properties of graphene nanoplatelets filled poly(lactic acid)/epoxidized palm oil blends / Buong Woei Chieng ... [et al.]
description	Poly(lactic acid) (PLA)-based nanocomposites filled with graphene nanoplatelets (xGnP) that contains epoxidized palm oil (EPO) as plasticizer were prepared by melt blending method. PLA was first plasticized by EPO to improve its flexibility and thereby overcome its problem of brittleness. Then, xGnP was incoporated into plasticized PLA to enhance its mechanical properties. Plasticized and nanofilled PLA nanocomposites (PLA/EPO/xGnP) showed improvement in the elongation at break by 3322% and 61% compared to pristine PLA and PLA/EPO, respectively. The use of EPO and xGnP increases the mobility of the polymeric chains, thereby improving the flexibility and plastic deformation of PLA. The nanocomposites also resulted in an increase of up to 26.5% in the tensile strength compared with PLA/EPO blend. XRD pattern showed the presence of peak around 26.5° in PLA/EPO/xGnP nanocomposites which corresponds to characteristic peak of graphene nanoplatelets. Plasticized PLA reinforced with xGnP showed that increasing the xGnP content triggers a substantial increase in thermal stability. Crystallinity of the nanocomposites as well as cold crystallization and melting temperature did not show any significant changes upon addition of xGnP. However, there was a significant decrease of glass transition temperature up to 0.3wt% of xGnP incorporation. The TEM micrograph of PLA/EPO/xGnP shows that the xGnP was uniformly dispersed in the PLA matrix and no obvious aggregation was observed.
format	Article
author	Buong, Woei Chieng Ibrahim, Nor Azowa Wan Yunus, Wan Md Zin Hussein, Mohd Zobir
author_facet	Buong, Woei Chieng Ibrahim, Nor Azowa Wan Yunus, Wan Md Zin Hussein, Mohd Zobir
author_sort	Buong, Woei Chieng
title	The mechanical, thermal and morphological properties of graphene nanoplatelets filled poly(lactic acid)/epoxidized palm oil blends / Buong Woei Chieng ... [et al.]
title_short	The mechanical, thermal and morphological properties of graphene nanoplatelets filled poly(lactic acid)/epoxidized palm oil blends / Buong Woei Chieng ... [et al.]
title_full	The mechanical, thermal and morphological properties of graphene nanoplatelets filled poly(lactic acid)/epoxidized palm oil blends / Buong Woei Chieng ... [et al.]
title_fullStr	The mechanical, thermal and morphological properties of graphene nanoplatelets filled poly(lactic acid)/epoxidized palm oil blends / Buong Woei Chieng ... [et al.]
title_full_unstemmed	The mechanical, thermal and morphological properties of graphene nanoplatelets filled poly(lactic acid)/epoxidized palm oil blends / Buong Woei Chieng ... [et al.]
title_sort	mechanical, thermal and morphological properties of graphene nanoplatelets filled poly(lactic acid)/epoxidized palm oil blends / buong woei chieng ... [et al.]
publisher	Research Management Institute (RMI)
publishDate	2014
url	http://ir.uitm.edu.my/id/eprint/12426/ http://ir.uitm.edu.my/id/eprint/12426/1/AJ_BUONG%20WOEI%20CHIENG%20SRJ%2014%201.pdf
first_indexed	2023-09-18T22:49:15Z
last_indexed	2023-09-18T22:49:15Z
_version_	1777417433211994112

The mechanical, thermal and morphological properties of graphene nanoplatelets filled poly(lactic acid)/epoxidized palm oil blends / Buong Woei Chieng ... [et al.]

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