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Effect of sago starch and plasticizer contents on thermoplastic sago films: mechanical and repeated soaking and drying test


Citation

Muhd Julkapli, Halimatul Saadiah and Salit, Mohd Sapuan and Jawaid, Mohammad and Ishak, Mohamad Ridzwan and Ilyas, R. A. (2019) Effect of sago starch and plasticizer contents on thermoplastic sago films: mechanical and repeated soaking and drying test. Polimery, 64 (6). pp. 422-431. ISSN 0032-2725

Abstract

Studies on the effect of sago starch and plasticizer concentrations on the tensile and tearing properties of the produced starch films were carried out using universal testing machine. The results showed that both sago starch and plasticizer contents significantly affected the mechanical properties of starch films. With increasing the starch concentration, an increase in tensile strength was observed. This was accompanied by radically reduced tensile strain and increased tearing strength. On the contrary, when increasing the plasticizer concentration, a reduction in tensile and tearing strength was observed, as well as an increment in tensile strain. The results of repeated soaking and drying tests made on sago starch films showed that the films with high plasticizer and low starch content exhibited lower mass loss compared to those containing lower plasticizer and higher starch concentration. Increasing the number of soaking and drying cycles reduced starch dissolution and it was probably related to retrogradation process inside the film. In a nutshell, the study provided preliminary information to assess the possible application fields of sago starch films.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Institute of Tropical Forestry and Forest Products
DOI Number: https://doi.org/10.14314/polimery.2019.6.5
Publisher: Industrial Chemistry Research Institute
Keywords: Sago; Starch; Tensile; Tearing; Water absorption; Crystallinity; Film sago; Skrobia; Rozciąganie; Rozrywanie; Absorpcja wody; Krystaliczność; Błona
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 01 Jun 2021 22:58
Last Modified: 01 Jun 2021 22:58
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.14314/polimery.2019.6.5
URI: http://psasir.upm.edu.my/id/eprint/79536
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