Engineering Poly(Lactic Acid)/Cellulose Nanocrystal Composites: A Comparative Review of Preparation Strategies and their Influence on Structure‐Property Relationships
Year: 2025
Type: article
Abstract: The incorporation of cellulose nanocrystals (CNCs) into poly(lactic acid) (PLA) matrices has emerged as a promising approach to enhance the mechanical, thermal, and rheological properties of bioplastics. However, the final properties of PLA/CNC nanocomposites are dependent on the preparation methods employed. This review explores the impact of various synthesis techniques, including chemical grafting, melt processing, and solution‐based approaches, on the dispersion, interfacial adhesion, and performance of PLA/CNC composites. While melt processing methods such as extrusion offer scalable production, they often lead to CNC aggregation, limiting reinforcement efficiency. In contrast, solution‐based methods provide improved CNC dispersion but introduce challenges related to solvent removal and processing complexity. Recent advancements in reactive extrusion and surface‐modified CNCs have demonstrated potential in mitigating these limitations. By comparing the effects of these preparation strategies on crystallinity, mechanical reinforcement, and rheological behavior, this review provides insights into optimizing PLA/CNC nanocomposite formulations for diverse applications, including packaging, biomedical devices, and additive manufacturing.
Source: Advanced Sustainable Systems
Authors: Jimin Ryoo, Dongyeop X. Oh, Jeyoung Park
Institutions: Sogang University, Inha University
Language: English
Subfield: Biomaterials
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,430
Awards: G1529862895, G929111377
OpenAlex ID: W4413373013