Walikukun fiber as lightweight polymer reinforcement: physical, chemical, mechanical, thermal, and morphological properties

Andoko, Andoko and Gapsari, Femiana and Prasetya, Riduwan and Sulaiman, Abdul Mudjib and Rangappa, Sanjay Mavinkere and Siengchin, Suchart (2023) Walikukun fiber as lightweight polymer reinforcement: physical, chemical, mechanical, thermal, and morphological properties. BIOMASS CONVERSION AND BIOREFINERY. pp. 1-13. ISSN 2190-6815

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Abstract

Natural fibers are increasingly being used as an alternative material to replace synthetic fiber. One of the abundant natural fibers used as an alternative is Walikukun fiber (WF). WF was treated at varied alkali concentrations (KOH). The single fiber strength revealed that the 6% KOH variation produced the highest tensile strength of 454.75 MPa. WF has a high crystallinity index and reached 89.95% with 6% alkali treatment. The result showed that there was a higher cellulose content in the fiber treated with alkali KOH than in the untreated fiber. The FTIR analysis showed that the KOH treatment broke down the lignin part in the characteristic band and increased I2 cellulose, which made the WF cellulose content higher. The increase in cellulose improved the fiber density, signifying that adding KOH refined the fiber's density. After KOH treatment, the fiber's diameter became smaller and its thickness was reduced. The fiber's crystallinity index indicated improvement in binding lignin and hemicellulose in WF. Thermal testing proved that KOH concentrations positively strengthened the fiber's thermal resistance. The optimal KOH concentration for polymer composites is 6%, which enhances fiber parameters, crystallization index, tensile strength, and thermal stability, making it suitable for reinforcement.

Item Type: Article
Uncontrolled Keywords: Walikukun fiber; Alkali treatment; Composite; Mechanical properties
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering > Mechanical and Industrial Engineering Department
Depositing User: Rita Yulianti Yulianti
Date Deposited: 31 Oct 2024 06:40
Last Modified: 31 Oct 2024 06:40
URI: https://ir.lib.ugm.ac.id/id/eprint/10432

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