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The Life Cycle Assessment for Polylactic Acid (PLA) to Make It a Low-Carbon Material
Center for Nanotechnology and Sustainability, Department of Mechanical Engineering, National University of Singapore, Singapore 117581, Singapore.
Center for Nanotechnology and Sustainability, Department of Mechanical Engineering, National University of Singapore, Singapore 117581, Singapore.
Department of Polymer Engineering, Faculty of Engineering, Golestan University, P.O. Box 491888369, Gorgan 1575949138, Iran.
School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
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2021 (English)In: Polymers, E-ISSN 2073-4360, Vol. 13, no 11, article id 1854Article, review/survey (Refereed) Published
Abstract [en]

The massive plastic production worldwide leads to a global concern for the pollution made by the plastic wastes and the environmental issues associated with them. One of the best solutions is replacing the fossil-based plastics with bioplastics. Bioplastics such as polylactic acid (PLA) are biodegradable materials with less greenhouse gas (GHG) emissions. PLA is a biopolymer produced from natural resources with good mechanical and chemical properties, therefore, it is used widely in packaging, agriculture, and biomedical industries. PLA products mostly end up in landfills or composting. In this review paper, the existing life cycle assessments (LCA) for PLA were comprehensively reviewed and classified. According to the LCAs, the energy and materials used in the whole life cycle of PLA were reported. Finally, the GHG emissions of PLA in each stage of its life cycle, including feedstock acquisition and conversion, manufacturing of PLA products, the PLA applications, and the end of life (EoL) options, were described. The most energy-intensive stage in the life cycle of PLA is its conversion. By optimizing the conversion process of PLA, it is possible to make it a low-carbon material with less dependence on energy sources.

Place, publisher, year, edition, pages
MDPI, 2021. Vol. 13, no 11, article id 1854
Keywords [en]
polylactic acid, greenhouse gas, life cycle assessment, carbon dioxide, low carbon
National Category
Energy Systems
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-85842DOI: 10.3390/polym13111854ISI: 000660514300001PubMedID: 34199643Scopus ID: 2-s2.0-85108224355OAI: oai:DiVA.org:ltu-85842DiVA, id: diva2:1570754
Note

Validerad;2021;Nivå 2;2021-06-22 (johcin);

Finansiär: Project of Six Talents Climax Foundation of Jiangsu (XCL-082), Innovation Platform Project Supported by Jiangsu Province (6907041203), Nanjing Jinsibo Nano Technology Co., Ltd. (Nanjing, China).

Available from: 2021-06-22 Created: 2021-06-22 Last updated: 2024-01-17Bibliographically approved

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