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Scalable Step-by-Step Approach of Sustainable Bioplastic Production from Food Waste
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Expanding Poly(lactic acid) (PLA) and Polyhydroxyalkanoates (PHAs) Applications: A Review on Modifications and
Ahmed Z Naser1, Ibrahim Deiab1, Fantahun Defersha1
1School of Engineering, University of Guelph, Guelph, ON N1G 2W1, Canada.
Polymers
|December 10, 2021
Summary
Biodegradable polymers like poly(lactic acid) (PLA) and polyhydroxyalkanoates (PHAs) offer sustainable alternatives to petroleum plastics. Modifications can enhance their mechanical properties, expanding their use in various applications.
Area of Science:
- Materials Science
- Polymer Science
- Environmental Science
Background:
- Growing environmental concerns and regulations drive demand for sustainable, biodegradable materials.
- Petroleum-based plastics pose risks to human health and ecosystems.
- Biodegradable polymers like poly(lactic acid) (PLA) and polyhydroxyalkanoates (PHAs) are emerging as eco-friendly alternatives.
Purpose of the Study:
- To review modification methods for enhancing the mechanical properties of PLA and PHAs.
- To explore the potential of these biopolymers as substitutes for petroleum-based plastics.
Main Methods:
- Literature review focusing on plasticizers, fillers, polymer blends, and nanocomposites.
- Analysis of impacts of modification methods on mechanical properties.
Main Results:
- Modification techniques can overcome limitations in flexibility and impact resistance of PLA and PHAs.
- Enhanced biopolymers show potential for diverse applications.
Conclusions:
- PLA and PHAs are strong candidates for replacing petroleum-based plastics.
- Modified biopolymers can be utilized in food packaging, biomedical devices, and flame-retardant applications.
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