Effect of thermoplastic polyurethane (TPU) on the thermal and mechanical properties of polylactic acid (PLA)/ curcumin blends

Syed Shaharuddin, Sharifah Imihezri and Adnan, Muhammad Danial Afiq and Muhamad Khairussaleh, Nor Khairusshima and Mohd Shaffiar, Norhashimah and Buys, Yose Fachmi (2018) Effect of thermoplastic polyurethane (TPU) on the thermal and mechanical properties of polylactic acid (PLA)/ curcumin blends. In: International Conference on Advances in Manufacturing and Materials Engineering (ICAMME 2017), 8 - 9 August 2017, Kuala Lumpur, Malaysia.

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Abstract

Polylactic acid (PLA) is known to be brittle by nature and thus limits the flexibility of the polymer. A possible solution to enhance the flexibility of PLA is to add a flexible polymeric based material such as thermoplastic polyurethane (TPU). In this study, 30-50 wt% of TPU was added into PLA/curcumin blends to improve its flexibility. Thermal analysis using differential scanning calorimetry shows that further additions of TPU at the expense of PLA did not affect the glass transition temperature, crystallisation temperature and melting temperature of the blends. Fibers of PLA/curcumin/TPU were successfully drawn and Single Fiber Tensile Test (SFTT) showed vast improvement in elongation at break. The initial addition of 30 wt% of TPU to the brittle PLA/curcumin composition causes a significant increase in elongation at break by 39 times and further additions at 50 wt %, the elongation at break increases by 105 times. However, with the increase in elongation, a decrease in strength and Young’s modulus was observed.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	4586/62739
Uncontrolled Keywords:	Thermoplastic polyurethane (TPU); Thermal and mechanical properties; Polylactic acid (PLA)/ curcumin blends
Subjects:	T Technology > TP Chemical technology > TP1080 Polymers, plastics and their manufacture
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Dr Yose Fachmi Buys
Date Deposited:	05 Apr 2018 16:02
Last Modified:	02 Aug 2018 12:12
URI:	http://irep.iium.edu.my/id/eprint/62739

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