Bio-based sustainable films from the Algerian Opuntia ficus-indica cladodes powder: Effect of plasticizer content
authors Nawal Makhloufi, Nadia Chougui, Farouk Rezgui, Elias Benramdane, Carmen S. R. Freire, Carla Vilela, Armando J. D. Silvestre
nationality International
journal Journal of Applied Polymer Science
abstract The present study investigated the fabrication and characterization of bio- based sustainable films composed of a terrestrial plant raw material, namely Opuntia ficus-indica (OFI) cladodes powder (CP) and a marine seaweed deriva- tive, namely agar (A). The effect of glycerol concentration on the properties of the casted films was evaluated at four different contents, namely 30, 40, 50 and 60 wt%. The films present UV-blocking properties, as well as moderate mechanical performance, thermal stability, and water vapor transmission rate (WVTR). The results point to an increase in thickness, elongation at break, moisture content, water solubility, and WVTR with increasing glycerol con- tent. On the contrary, Young's modulus, tensile strength, and water contact angle decreased as glycerol concentration increased. The best combination is obtained for the film with 30% glycerol, based on an intermediate compromise between physical, mechanical, thermal, and barrier properties. All these out- comes express the potentiality of the powder obtained from grinding the OFI cladodes as raw material to produce low-cost films for the development of sustainable packaging materials.
publisher Wiley
year published 2021
volume 138
issue 20
beginning page e50450
digital object identifier (doi) 10.1002/app.50450
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journal impact factor 2.52
5 year journal impact factor 2.257
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