Enhancing mechanical properties of polylactic acid through the incorporation of cellulose nanocrystals for engineering plastic applications

Authors

  • Shih-Chen Shi Department of Mechanical Engineering, National Cheng Kung University, TAIWAN
  • Chia-Feng Hsieh Department of Mechanical Engineering, National Cheng Kung University, TAIWAN
  • Dieter Rahmadiawan Department of Mechanical Engineering, Universitas Negeri Padang, INDONESIA

DOI:

https://doi.org/10.24036/teknomekanik.v7i1.30072

Keywords:

Polylactic acid, Cellulose nanocrystals, Mechanical properties, Biocomposites, Engineering plastics

Abstract

This study investigates the potential of enhancing the mechanical properties of polylactic acid (PLA) using cellulose nanocrystals (CNC). Recognized for their high specific strength and stiffness, CNCs are considered to improve the performance of PLA in engineering plastic applications. The synthesis involves a twin-screw extrusion process, which facilitates the uniform dispersion of CNC within the PLA matrix. The mechanical properties, including tensile strength and elongation at break, are comprehensively analyzed, highlighting the effects of CNC concentrations on the performance of PLA composites. Notably, the addition of 1 wt% CNC resulted in a 20% increase in strain at break compared to pure PLA, demonstrating enhanced ductility. Additionally, the thermal resistance of the composite increased by 0.3% with the inclusion of 5 wt% CNC. This study highlights the positive effect of CNC addition on the mechanical properties of PLA composites, making them more suitable for specialized engineering uses.

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Published

2024-05-15

How to Cite

Shi, S.-C., Hsieh, C.-F., & Rahmadiawan, D. (2024). Enhancing mechanical properties of polylactic acid through the incorporation of cellulose nanocrystals for engineering plastic applications. Teknomekanik, 7(1), 20–28. https://doi.org/10.24036/teknomekanik.v7i1.30072

Issue

Vol. 7 No. 1 (2024): Regular Issue

Section

Research Articles

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Copyright (c) 2024 Shih-Chen Shi, Chia-Feng Hsieh, Dieter Rahmadiawan (Author)

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This work is licensed under a Creative Commons Attribution 4.0 International License.