Poly Lactic Acid (PLA) Nanocomposites: Effect of Inorganic Nanoparticles Reinforcement on Its Performance and Food Packaging Applications
Mulla, Mehrajfatema Zafar
Rahman, Md Ramim Tanver
Poly lactic acid (PLA) is a compostable, as well as recyclable, sustainable, versatile and environmentally friendly alternative, because the monomer of PLA-lactide (LA) is extracted from natural sources. PLA’s techno-functional properties are fairly similar to fossil-based polymers; however, in pristine state, its brittleness and delicacy during processing pose challenges to its potential exploitation in diverse food packaging applications. PLA is, therefore, re-engineered to improve its thermal, rheological, barrier and mechanical properties through nanoparticle (NP) reinforcement. This review summarises the studies on PLA-based nanocomposites (PLA NCs) developed by reinforcing inorganic metal/metallic oxide, graphite and silica-based nanoparticles (NPs) that exhibit remarkable improvement in terms of storage modulus, tensile strength, crystallinity, glass transition temperature (Tg) value, antimicrobial property and a decrease in water vapour and oxygen permeability when compared with the pristine PLA films. This review has also discussed the regulations around the use of metal oxide-based NPs in food packaging, PLA NC biodegradability and their applications in food systems. The industrial acceptance of NCs shows highly promising perspectives for the replacement of traditional petrochemical-based polymers currently being used for food packaging.
663/664 - Aliments i nutrició. Enologia. Olis. Greixos
Is part of
Mulla, Mehrajfatema Zafar, Md Ramim Tanver Rahman, Begonya Marcos, Brijesh Tiwari, and Shivani Pathania. 2021. "Poly Lactic Acid (PLA) Nanocomposites: Effect Of Inorganic Nanoparticles Reinforcement On Its Performance And Food Packaging Applications". Molecules 26 (7): 1967. doi:10.3390/molecules26071967.
Grant agreement number
EC/COST/CA19124/EU/Rethinking packaging for circular and sustainable food supply chains of the future/CIRCUL-A-BILITY
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