Effect of Various Plasticizers in Different Concentrations on Physical, Thermal, Mechanical, and Structural Properties of Wheat Starch-Based Films

Mohammed, Abdulrahman A. B. A. and Hasan, Zaimah and Borhana Omran, Abdoulhdi A. and M. Elfaghi, Abdulhafid and Khattak, M.A. and Ilyas, R. A. and Sapuan, S. M. (2022) Effect of Various Plasticizers in Different Concentrations on Physical, Thermal, Mechanical, and Structural Properties of Wheat Starch-Based Films. Polymers, 15 (63). pp. 1-21. ISSN 2073-4360

Text
J15605_e38200ba2afaa45858bfbc0713160cab.pdf
Restricted to Registered users only
Download (2MB) | Request a copy

Official URL: https://doi.org/10.3390/polym15010063

Abstract

Biocomposite materials are essential for environmental protection, as they have the ability of substituting synthetic plastic with natural materials. This work investigated how different plasticizers (Glycerol (G), Fructose (F), Sorbitol (S), and Urea (U)) affect the morphological, mechanical, thermal, and physical characteristics of films made of wheat starch at various concentrations (0%, 15%, 25%, and 35%). Plasticizers were added to improve the flexibility and homogeneity of the wheat starch-based bioplastic. Control film exhibited high tensile strength (38.7 MPa) with low elongation (1.9%). However, films plasticized with 35% sorbitol showed the highest elongation, which was 60.7% at break. At 35% of all plasticizers, fructose showed the highest tensile strength, with 7.6 MPa. The addition of different plasticizers shows improvement in water resistance; films plasticized with glycerol had the lowest water absorption at 35% fructose (187.4%) and also showed coherent surfaces. Glycerol, sorbitol, and urea films showed a higher mass loss compared to fructose films. Fructose showed the highest performance after the analysis of the results, with low water absorption, water content, and mass loss and with high mechanical performance at 35% of fructose. SEM images show that the addition of fructose and glycerol improves the surface homogenate, while sorbitol and urea have a less compact structure with large pores.

Item Type:	Article
Uncontrolled Keywords:	wheat starch; plasticizers; biocomposite film; properties improvement
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Mechanical and Manufacturing Engineering
Depositing User:	Mr. Mohamad Zulkhibri Rahmad
Date Deposited:	05 Apr 2023 03:04
Last Modified:	05 Apr 2023 03:04
URI:	http://eprints.uthm.edu.my/id/eprint/8521

Actions (login required)

View Item