Enhanced flexibility of biodegradable polylactic acid/starch blends using epoxidized palm oil as plasticizer

The brittleness of polylactic acid (PLA) has always limited its usage, although it has good mechanical strength. In this study, flexibility of PLA/starch (PSt) blend was enhanced using epoxidized palm oil (EPO) as the green plasticizer. The PLA/starch/EPO (PSE) blends were prepared while using th...

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Main Authors:	Awale, Raina Jama, Ali, Fathilah, Azmi, Azlin Suhaida, Mohamad Puad, Noor Illi, Anuar, Hazleen, Hassan, Azman
Format:	Article
Language:	English English English
Published:	MDPI AG 2018
Subjects:	TP Chemical technology TP1080 Polymers, plastics and their manufacture
Online Access:	http://irep.iium.edu.my/66144/ http://irep.iium.edu.my/66144/ http://irep.iium.edu.my/66144/ http://irep.iium.edu.my/66144/1/66144_Enhanced%20Flexibility.pdf http://irep.iium.edu.my/66144/2/66144_Enhanced%20Flexibility_SCOPUS.pdf http://irep.iium.edu.my/66144/13/66144_Enhanced%20flexibility%20of%20biodegradable%20polylactic_WOS.pdf

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recordtype	eprints
spelling	iium-661442019-01-30T03:10:18Z http://irep.iium.edu.my/66144/ Enhanced flexibility of biodegradable polylactic acid/starch blends using epoxidized palm oil as plasticizer Awale, Raina Jama Ali, Fathilah Azmi, Azlin Suhaida Mohamad Puad, Noor Illi Anuar, Hazleen Hassan, Azman TP Chemical technology TP1080 Polymers, plastics and their manufacture The brittleness of polylactic acid (PLA) has always limited its usage, although it has good mechanical strength. In this study, flexibility of PLA/starch (PSt) blend was enhanced using epoxidized palm oil (EPO) as the green plasticizer. The PLA/starch/EPO (PSE) blends were prepared while using the solution casting method by fixing the content of starch and varying ratio of EPO. The thermal properties, such as glass transition temperature (Tg), melting temperature (Tm), and crystallization temperature (Tcc) were decreased by increasing the amount of EPO into PSt, indicating that EPO increases the chain mobility. Thermogravimetric analysis (TGA) showed that thermal degradation resistance of PSE was higher when compared to PSt. The mechanical testing revealed that EPO at all contents improved the mechanical properties, such as increment of the elongation-at-break and impact strength. Whereas, dynamic mechanical analysis showed that the addition of filler into PLA decreased the storage modulus of PLA. The carbonyl group of the aliphatic ester remained the same in the PSE blends. The morphological study verified the ductility of PSE blends surface when compared to the brittle surface of PSt. As for the soil burial tests, EPO accelerated the degradation of blends. From these results, it can be concluded that EPO improved the flexibility of PLA blends. MDPI AG 2018-09-02 Article PeerReviewed application/pdf en http://irep.iium.edu.my/66144/1/66144_Enhanced%20Flexibility.pdf application/pdf en http://irep.iium.edu.my/66144/2/66144_Enhanced%20Flexibility_SCOPUS.pdf application/pdf en http://irep.iium.edu.my/66144/13/66144_Enhanced%20flexibility%20of%20biodegradable%20polylactic_WOS.pdf Awale, Raina Jama and Ali, Fathilah and Azmi, Azlin Suhaida and Mohamad Puad, Noor Illi and Anuar, Hazleen and Hassan, Azman (2018) Enhanced flexibility of biodegradable polylactic acid/starch blends using epoxidized palm oil as plasticizer. Polymers, 10 (9). pp. 1-12. ISSN 2073-4360 https://www.mdpi.com/2073-4360/10/9/977 10.3390/polym10090977
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	TP Chemical technology TP1080 Polymers, plastics and their manufacture
spellingShingle	TP Chemical technology TP1080 Polymers, plastics and their manufacture Awale, Raina Jama Ali, Fathilah Azmi, Azlin Suhaida Mohamad Puad, Noor Illi Anuar, Hazleen Hassan, Azman Enhanced flexibility of biodegradable polylactic acid/starch blends using epoxidized palm oil as plasticizer
description	The brittleness of polylactic acid (PLA) has always limited its usage, although it has good mechanical strength. In this study, flexibility of PLA/starch (PSt) blend was enhanced using epoxidized palm oil (EPO) as the green plasticizer. The PLA/starch/EPO (PSE) blends were prepared while using the solution casting method by fixing the content of starch and varying ratio of EPO. The thermal properties, such as glass transition temperature (Tg), melting temperature (Tm), and crystallization temperature (Tcc) were decreased by increasing the amount of EPO into PSt, indicating that EPO increases the chain mobility. Thermogravimetric analysis (TGA) showed that thermal degradation resistance of PSE was higher when compared to PSt. The mechanical testing revealed that EPO at all contents improved the mechanical properties, such as increment of the elongation-at-break and impact strength. Whereas, dynamic mechanical analysis showed that the addition of filler into PLA decreased the storage modulus of PLA. The carbonyl group of the aliphatic ester remained the same in the PSE blends. The morphological study verified the ductility of PSE blends surface when compared to the brittle surface of PSt. As for the soil burial tests, EPO accelerated the degradation of blends. From these results, it can be concluded that EPO improved the flexibility of PLA blends.
format	Article
author	Awale, Raina Jama Ali, Fathilah Azmi, Azlin Suhaida Mohamad Puad, Noor Illi Anuar, Hazleen Hassan, Azman
author_facet	Awale, Raina Jama Ali, Fathilah Azmi, Azlin Suhaida Mohamad Puad, Noor Illi Anuar, Hazleen Hassan, Azman
author_sort	Awale, Raina Jama
title	Enhanced flexibility of biodegradable polylactic acid/starch blends using epoxidized palm oil as plasticizer
title_short	Enhanced flexibility of biodegradable polylactic acid/starch blends using epoxidized palm oil as plasticizer
title_full	Enhanced flexibility of biodegradable polylactic acid/starch blends using epoxidized palm oil as plasticizer
title_fullStr	Enhanced flexibility of biodegradable polylactic acid/starch blends using epoxidized palm oil as plasticizer
title_full_unstemmed	Enhanced flexibility of biodegradable polylactic acid/starch blends using epoxidized palm oil as plasticizer
title_sort	enhanced flexibility of biodegradable polylactic acid/starch blends using epoxidized palm oil as plasticizer
publisher	MDPI AG
publishDate	2018
url	http://irep.iium.edu.my/66144/ http://irep.iium.edu.my/66144/ http://irep.iium.edu.my/66144/ http://irep.iium.edu.my/66144/1/66144_Enhanced%20Flexibility.pdf http://irep.iium.edu.my/66144/2/66144_Enhanced%20Flexibility_SCOPUS.pdf http://irep.iium.edu.my/66144/13/66144_Enhanced%20flexibility%20of%20biodegradable%20polylactic_WOS.pdf
first_indexed	2023-09-18T21:33:51Z
last_indexed	2023-09-18T21:33:51Z
_version_	1777412689836900352

Enhanced flexibility of biodegradable polylactic acid/starch blends using epoxidized palm oil as plasticizer

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