Miscibility, mechanical, and thermal properties of polylactic acid/polypropylene carbonate (PLA/PPC) blends prepared by melt-mixing method

Haneef, I.N.H.M. and Buys, Yose Fachmi and Shaffiar, Norhashimah and Syed Shaharuddin, Sharifah Imihezri and Muhamad Khairussaleh, Nor Khairusshima (2018) Miscibility, mechanical, and thermal properties of polylactic acid/polypropylene carbonate (PLA/PPC) blends prepared by melt-mixing method. In: 6th International Conference on Recent Advances in Materials, Minerals & Environment (RAMM 2018), 27th-29th November 2018, Penang, Malaysia.

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Abstract

In this project, Polylactic acid (PLA) and Polypropylene carbonate (PPC) blends were prepared using melt-mixing method to overcome its brittleness. The tensile test results showed that the elongation at break increased from 6% of the neat PLA to 13% as 7.5% of PPC was added. A more significant increase of elongation at break of the blends from 13% to 68% was observed as the amount of PPC was increased to 15%. The highest elongation at break achieved up to 173% when 30% of PPC was added. From differential scanning calorimetry (DSC) analysis, two glass transition temperatures () were observed. As the amount of PPC increased, of PLA was shifted to a lower temperature and vice versa, indicating PLA and PPC were partially miscible. Scanning Electron Microscopy (SEM) verified PPC, with a uniform size, were homogeneously distributed in PLA matrix. Finally, Fourier Transform Infrared (FTIR) measurement revealed that there was a shift of wavenumber from 2997 cm1 and 2949 cm-1 to 2990 cm-1 and 2960 cm-1 which explained that there was a possible intermolecular interaction between –CH of PLA and –O-C or –O=C of PPC which influenced the partial miscible of the blends.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	6994/74227
Uncontrolled Keywords:	Polylactic acid; Polypropylene carbonate; Biodegradable polymers, Melt-mixing, Miscibility, Mechanical property
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Dr Nor Khairusshima Muhamad Khairussaleh
Date Deposited:	17 Sep 2019 10:51
Last Modified:	17 Sep 2019 10:53
URI:	http://irep.iium.edu.my/id/eprint/74227

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