Mechanical properties, morphology, and hydrolytic degradation behavior of polylactic acid / natural rubber blends

Due to its biodegradability and renewability, polylactic acid (PLA) has been receiving enormous attention as a potential candidate to replace petroleum based polymers. However, PLA has limitation due to its inherent brittleness. In order to overcome this limitation, blending PLA with elastomeric ma...

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Main Authors:	Buys, Yose Fachmi, Aznan, Aisyah Nur Atiqah, Anuar, Hazleen
Format:	Conference or Workshop Item
Language:	English English English
Published:	IOP Publishing Ltd. 2018
Subjects:	TP1080 Polymers, plastics and their manufacture
Online Access:	http://irep.iium.edu.my/62733/ http://irep.iium.edu.my/62733/ http://irep.iium.edu.my/62733/ http://irep.iium.edu.my/62733/7/62733_Mechanical%20properties%2C%20morphology%2C%20and%20hydrolytic_scopus.pdf http://irep.iium.edu.my/62733/13/62733_Mechanical%20properties%2C%20morphology%2C%20and%20hydrolytic_WoS.pdf http://irep.iium.edu.my/62733/19/62733_Mechanical%20properties%2C%20morphology%2C%20and%20hydrolytic.pdf

id	iium-62733
recordtype	eprints
spelling	iium-627332018-10-31T03:05:10Z http://irep.iium.edu.my/62733/ Mechanical properties, morphology, and hydrolytic degradation behavior of polylactic acid / natural rubber blends Buys, Yose Fachmi Aznan, Aisyah Nur Atiqah Anuar, Hazleen TP1080 Polymers, plastics and their manufacture Due to its biodegradability and renewability, polylactic acid (PLA) has been receiving enormous attention as a potential candidate to replace petroleum based polymers. However, PLA has limitation due to its inherent brittleness. In order to overcome this limitation, blending PLA with elastomeric materials such as natural rubber (NR) are commonly reported. In previous, several researches on PLA/NR blend had been reported, with most of them evaluated the mechanical properties. On the other hand, study of degradation behavior is significance of importance, as controlling materials degradation is required in some applications. This research studied the effect of blend composition on mechanical properties, morphology development, and hydrolytic degradation behavior of PLA/NR blends. Various compositions of PLA/NR blends were prepared by melt blending technique. Tensile test and impact test of the blends were performed to evaluate the mechanical properties. Addition of NR improved the elongation at break and impact strength of the blends, but reduced the tensile strength and stiffness of the specimens. Dynamic Mechanical Analysis (DMA) measurements of the blends displayed two peaks at temperature -70˚C which corresponded to Tg of NR and 65˚C which corresponded to Tg of PLA. Field Emission Scanning Electron Microscopy (FESEM) micrograph of 70/30 PLA/NR specimen also showed two distinct phases, which lead to indication that PLA/NR blends are immiscible. Hydrolytic degradation behavior was evaluated by measuring the remaining weight of the samples immersed in sodium hydroxide solution for a predetermined times. It was shown that the degradation behavior of PLA/NR blends is affected by composition of the blends, with 100 PLA and 70/30 PLA/NR blend showed the fastest degradation rate and 100 NR displayed the slowest one. IOP Publishing Ltd. 2018 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/62733/7/62733_Mechanical%20properties%2C%20morphology%2C%20and%20hydrolytic_scopus.pdf application/pdf en http://irep.iium.edu.my/62733/13/62733_Mechanical%20properties%2C%20morphology%2C%20and%20hydrolytic_WoS.pdf application/pdf en http://irep.iium.edu.my/62733/19/62733_Mechanical%20properties%2C%20morphology%2C%20and%20hydrolytic.pdf Buys, Yose Fachmi and Aznan, Aisyah Nur Atiqah and Anuar, Hazleen (2018) Mechanical properties, morphology, and hydrolytic degradation behavior of polylactic acid / natural rubber blends. In: International Conference on Advances in Manufacturing and Materials Engineering 2017, ICAMME 2017, 8 - 9 August 2017, Kuala Lumpur, Malaysia. http://iopscience.iop.org/article/10.1088/1757-899X/290/1/012077/meta 10.1088/1757-899X/290/1/012077
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	TP1080 Polymers, plastics and their manufacture
spellingShingle	TP1080 Polymers, plastics and their manufacture Buys, Yose Fachmi Aznan, Aisyah Nur Atiqah Anuar, Hazleen Mechanical properties, morphology, and hydrolytic degradation behavior of polylactic acid / natural rubber blends
description	Due to its biodegradability and renewability, polylactic acid (PLA) has been receiving enormous attention as a potential candidate to replace petroleum based polymers. However, PLA has limitation due to its inherent brittleness. In order to overcome this limitation, blending PLA with elastomeric materials such as natural rubber (NR) are commonly reported. In previous, several researches on PLA/NR blend had been reported, with most of them evaluated the mechanical properties. On the other hand, study of degradation behavior is significance of importance, as controlling materials degradation is required in some applications. This research studied the effect of blend composition on mechanical properties, morphology development, and hydrolytic degradation behavior of PLA/NR blends. Various compositions of PLA/NR blends were prepared by melt blending technique. Tensile test and impact test of the blends were performed to evaluate the mechanical properties. Addition of NR improved the elongation at break and impact strength of the blends, but reduced the tensile strength and stiffness of the specimens. Dynamic Mechanical Analysis (DMA) measurements of the blends displayed two peaks at temperature -70˚C which corresponded to Tg of NR and 65˚C which corresponded to Tg of PLA. Field Emission Scanning Electron Microscopy (FESEM) micrograph of 70/30 PLA/NR specimen also showed two distinct phases, which lead to indication that PLA/NR blends are immiscible. Hydrolytic degradation behavior was evaluated by measuring the remaining weight of the samples immersed in sodium hydroxide solution for a predetermined times. It was shown that the degradation behavior of PLA/NR blends is affected by composition of the blends, with 100 PLA and 70/30 PLA/NR blend showed the fastest degradation rate and 100 NR displayed the slowest one.
format	Conference or Workshop Item
author	Buys, Yose Fachmi Aznan, Aisyah Nur Atiqah Anuar, Hazleen
author_facet	Buys, Yose Fachmi Aznan, Aisyah Nur Atiqah Anuar, Hazleen
author_sort	Buys, Yose Fachmi
title	Mechanical properties, morphology, and hydrolytic degradation behavior of polylactic acid / natural rubber blends
title_short	Mechanical properties, morphology, and hydrolytic degradation behavior of polylactic acid / natural rubber blends
title_full	Mechanical properties, morphology, and hydrolytic degradation behavior of polylactic acid / natural rubber blends
title_fullStr	Mechanical properties, morphology, and hydrolytic degradation behavior of polylactic acid / natural rubber blends
title_full_unstemmed	Mechanical properties, morphology, and hydrolytic degradation behavior of polylactic acid / natural rubber blends
title_sort	mechanical properties, morphology, and hydrolytic degradation behavior of polylactic acid / natural rubber blends
publisher	IOP Publishing Ltd.
publishDate	2018
url	http://irep.iium.edu.my/62733/ http://irep.iium.edu.my/62733/ http://irep.iium.edu.my/62733/ http://irep.iium.edu.my/62733/7/62733_Mechanical%20properties%2C%20morphology%2C%20and%20hydrolytic_scopus.pdf http://irep.iium.edu.my/62733/13/62733_Mechanical%20properties%2C%20morphology%2C%20and%20hydrolytic_WoS.pdf http://irep.iium.edu.my/62733/19/62733_Mechanical%20properties%2C%20morphology%2C%20and%20hydrolytic.pdf
first_indexed	2023-09-18T21:28:52Z
last_indexed	2023-09-18T21:28:52Z
_version_	1777412376237178880

Mechanical properties, morphology, and hydrolytic degradation behavior of polylactic acid / natural rubber blends

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