Chitin fiber from mushroom as reinforcement for biobased polymer

Mat Zin, Mizan Izzati and Shamsudin, Nurul Syazana and Ali, Fathilah and Wan Nawawi, Wan Mohd Fazli (2021) Chitin fiber from mushroom as reinforcement for biobased polymer. In: 6th International Conference on Biotechnology Engineering (ICBioE 2021), 22-23 June 2021, Kuala Lumpur, Malaysia.

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Abstract

This project aimed to study the reinforcement effect of fungal chitin at different loading on chitin/PLA composite. The chitin nanofibers were extracted from three mushroom species (oyster mushroom Pleurotus ostreatus, shiitake mushroom Lentinula edodes, enoki mushroom Flammulina velutipes) and used as a reinforcement element in PLA. The chitin/PLA composite was fabricated using a solvent-casting method followed by the hot-compress molding method. In the solvent-casting method, the chitin nanofibers were dispersed in PLA/chloroform mixture and the mixture was left for solvent evaporation. The solvent-free chitin/PLA thin film was then filled in dog bone mold before proceeded with hot-compress molding at 190°C and 70 bar. The samples with different chitin loading were tested with tensile test to study the mechanical performance of nanocomposite. The chitin/PLA composite from oyster mushroom shows the optimum result (σ= 43 MPa, E= 12 MPa) at 5% chitin loading. The increment of the chitin loading leads to a decrease in both strength and strain. However, for the samples from enoki and shitake mushrooms, the optimum chitin loading is 10% with 55 MPa and 56 MPa tensile strength, respectively. This study suggests the potential of fungal chitin as reinforcement in PLA.

Item Type:	Conference or Workshop Item (Plenary Papers)
Subjects:	T Technology > TP Chemical technology > TP1080 Polymers, plastics and their manufacture T Technology > TP Chemical technology > TP155 Chemical engineering T Technology > TP Chemical technology > TP248.13 Biotechnology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User:	Wan Mohd Fazli Wan Nawawi
Date Deposited:	17 Feb 2022 10:45
Last Modified:	17 Feb 2022 10:45
URI:	http://irep.iium.edu.my/id/eprint/96778

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