Exploring the Effects of Fermented Chitin Nanowhiskers on Tensile and Thermal Properties of Poly(ethylene glycol) modified Polylactic Acid Nanocomposites


  • Syazeven Effatin Azma Mohd Asri Universiti Teknologi Malaysia
  • Zainoha Zakaria Universiti Teknologi Malaysia
  • Azman Hassan Universiti Teknologi Malaysia https://orcid.org/0000-0002-4247-9158
  • Mohamad Haafiz Mohamad Kassim Universiti Sains Malaysia
  • Reza Arjmandi Aston University




Chitin, Nanowhiskers, Polylactic acid, Poly(ethylene glycol), Nanocomposites


The incorporation of fermented chitin nanowhiskers (FCHW) into poly(lactic acid) (PLA) increased the tensile modulus and strength of PLA at the expense of ductility. The brittleness of PLA can be overcome with the use of plasticizer such as polyethylene glycols (PEG). The objective of this study is to investigate the effect of FCHW on the tensile and thermal properties PLA incorporated with PEG as plasticizer (PLA/PEG). PLA/PEG and FCHW reinforced PLA/PEG nanocomposites were prepared using solution mixing technique. Thermogravimetric analysis (TGA) was used to determine the thermal properties while tensile properties were determined from the tensile test. The incorporation of PEG successfully increased the ductility and tensile strength of PLA at the expense of modulus. Based on the tensile properties, 5 phr PEG was chosen for further investigation on the effect of FCHW on PEG modified PLA. Incorporation of 1 phr FCHW PLA/PEG increased the tensile strength and Young’s modulus. However, the tensile strength decreased with further addition of FCHW. The elongation at break of PLA/PEG decreased drastically with the incorporation of 1 phr FCHW and decreased gradually with further increase of FCHW. The thermal stability from TGA of FCHW reinforced PLA/PEG nanocomposites at 5 phr FCHW content was observed to be significantly higher compared to PLA/PEG, as indicated by T20 and Tmax.

Author Biographies

Syazeven Effatin Azma Mohd Asri, Universiti Teknologi Malaysia

Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia

Zainoha Zakaria, Universiti Teknologi Malaysia

Associate Professor
Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia

Azman Hassan, Universiti Teknologi Malaysia


School of Chemical and Energy Engineering

Faculty of Engineering

Mohamad Haafiz Mohamad Kassim, Universiti Sains Malaysia

Associate Professor
School of Industrial Technology, Universiti Sains Malaysia

Reza Arjmandi, Aston University

Postdoctoral Research Fellow
School of Engineering and Applied Science, Aston University


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