UPM Institutional Repository

Effect of plasticizers on physical, thermal, and tensile properties of thermoplastic films based on Dioscorea hispida starch


Kamaruddin, Zatil Hazrati and Salit, Mohd Sapuan and Mohamed Yusoff, Mohd Zuhri and Jumaidin, Ridhwan (2021) Effect of plasticizers on physical, thermal, and tensile properties of thermoplastic films based on Dioscorea hispida starch. International Journal of Biological Macromolecules, 185. 219 - 228. ISSN 0141-8130


This study examines the effects of varying the concentrations of sorbitol (S) and glycerol (G) on the physical, morphological, thermal, and mechanical properties of Dioscorea hispida, starch-based films. In this context, the films of Dioscorea hispida starch were developed using solution casting technique with glycerol (G), sorbitol (S), and a mixture of sorbitol-glycerol (SG) as plasticizers at the ratios of 0, 30, 45, and 60 wt%. The films' moisture contents were increased when increasing the plasticizer contents. The tensile strengths were decreased, but elongations at break were increased; 7.38%–11.54% for G-plasticized films, 10.17%–15.76% for S-plasticized films, and 14.41%– 16.10% for SG-plasticized films with increasing plasticizer concentrations of the film samples. Varying plasticizer concentrations exhibited a minor effect on the S-plasticized film's thermal properties. Significant decrement in the glass transition temperatures of Dioscorea hispida starch films was observed when the plasticizer contents were raised from 30% to 60%. Significantly, the present work has shown that plasticized Dioscorea hispida starch can be considered a promising biopolymer for the applications of biodegradable films.

Download File

Full text not available from this repository.

Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Institute of Tropical Forestry and Forest Products
DOI Number: https://doi.org/10.1016/j.ijbiomac.2021.06.099
Publisher: Elsevier
Keywords: Dioscorea hispida starch; Thermoplastic film; Biodegradable polymer
Depositing User: Ms. Nuraida Ibrahim
Date Deposited: 19 Apr 2023 04:08
Last Modified: 19 Apr 2023 04:08
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.ijbiomac.2021.06.099
URI: http://psasir.upm.edu.my/id/eprint/96930
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item