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Comprehensive characterization of raw and treated pineapple leaf fiber/polylactic acid green composites manufactured by 3D printing technique

Lookup NU author(s): Dr Kheng-Lim GohORCiD



This is the authors' accepted manuscript of an article that has been published in its final definitive form by John Wiley and Sons Inc, 2022.

For re-use rights please refer to the publisher's terms and conditions.


© 2022 Society of Plastics Engineers.The aim of this study is to develop a completely sustainable, biodegradable, eco-friendly and green composite material for packaging of food and medical products by an additive manufacturing technique such as 3D printing. This report presents the mechanical, crystalline, chemical bonding and thermal characteristics of a novel pineapple leaf fiber (PALF) reinforcing polylactic acid (PLA) green composite manufactured by 3D printing technique. Both powdered raw and alkali-treated PALFs were respectively mixed with PLA and extruded as filaments for 3D printing into composite test specimens. The characterization study reveals that the 3D printed composite with 3 wt% (alkali-treated) PALF reinforcement exhibited maximum tensile and flexural characteristics. The density of the 3D printed composite specimens increased with increase in wt% of PALF. On the other hand, the 3D printed composite specimens blended with raw PALF showed enhanced elongation at break compared to alkali-treated PALF reinforced composite specimens. The microstructural images of the 3D printed composite specimens confirms the existence of impurities, voids and fiber degradation phenomenon. The Fourier transform infrared spectra revealed the chemical bonding nature of the 3D printed composite specimens. The X-Ray diffraction was used to calculate the crystalline size and crystallinity index. Thermogravimetric analysis reveals that the 3D printed composite specimen possessed adequate thermal stability for use in packaging applications.

Publication metadata

Author(s): Mansingh BB, Binoj JS, Tan ZQ, Eugene WWL, Amornsakchai T, Hassan SA, Goh KL

Publication type: Article

Publication status: Published

Journal: Polymer Composites

Year: 2022

Volume: 43

Issue: 9

Pages: 6051-6061

Print publication date: 01/09/2022

Online publication date: 21/07/2022

Acceptance date: 04/07/2022

Date deposited: 08/09/2022

ISSN (print): 0272-8397

ISSN (electronic): 1548-0569

Publisher: John Wiley and Sons Inc


DOI: 10.1002/pc.26906

ePrints DOI: 10.57711/6z15-cb60


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