Effect of HNT on mechanical and thermal properties of poly(lactic acid)/polypropylene carbonate blends

Haneef, Intan Najwa Humaira Mohamed and Buys, Yose Fachmi and Shaffiar, Norhashimah Mohd and Shaharuddin, Sharifah Imihezri Syed and Hamid, Abdul Malek Abdul and Sabri, Mohd Faizul Mohd and Afifi, Amalina Muhammad (2021) Effect of HNT on mechanical and thermal properties of poly(lactic acid)/polypropylene carbonate blends. Polimery, 66 (9). pp. 459-465. ISSN 0032-2725, DOI https://doi.org/10.14314/polimery.2021.9.2.

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In this work, the influence of halloysite nanotubes (HNTs) on the mechanical and thermal properties of the poly(lactic acid)/polypropylene carbonate (PLA/PPC 70/30) blend was studied. The HNT was incorporated into the PLA/PPC blend by melt mixing. It was found that addition of 2-6 wt % HNT successfully improved the tensile and flexural strength as well as the flexural and Young's moduli of PLA/PPC blend, due to the reinforcing effect. Although the elongation at break decreases with increasing HNT content, its value is much higher than that of pure PLA. Moreover, the addition of HNT did not affect the miscibility of PLA and PPC, since two glass transition temperatures were observed in the DSC thermograms. However, a higher content of HNT may improve the compatibility between PLA and PPC as evidenced by the lower difference between the glass transition temperature of PPC and PLA and reduced crystallinity resulting in higher tensile strength of nanocomposites.

Item Type: Article
Funders: Faculty of Engineering, University of Malaya
Uncontrolled Keywords: PLA; PPC; HNT; Mechanical properties; Thermal properties
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Depositing User: Ms Zaharah Ramly
Date Deposited: 28 Mar 2022 07:36
Last Modified: 28 Mar 2022 07:36
URI: http://eprints.um.edu.my/id/eprint/28578

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