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Effect of sonication time on the thermal stability, moisture absorption, and biodegradation of water hyacinth (Eichhornia crassipes) nanocellulose-filled bengkuang (Pachyrhizus erosus) starch biocomposites


Citation

Edi Syafri and Sudirman and Mashadi and Evi Yulianti and Deswita and Mochamad Asrofic and Hairul Abral and Salit, Mohd Sapuan and Ilyas, R. A. and Ahmad Fudholi (2019) Effect of sonication time on the thermal stability, moisture absorption, and biodegradation of water hyacinth (Eichhornia crassipes) nanocellulose-filled bengkuang (Pachyrhizus erosus) starch biocomposites. Journal of Materials Research and Technology, 8 (6). pp. 6223-6231. ISSN 2238-7854

Abstract

In Indonesia, starch, particularly that obtained from bengkuang (Pachyrhizus erosus), is abundant and inexpensive, thereby increasing the value of bengkuang starch, which can be mixed with bioplastic-based starch. A biocomposite comprising nanocellulose from water hyacinth (Eichhornia crassipes) and bengkuang starch was successfully fabricated using the solution casting method. Nanocellulose content in the matrix was kept constant at 1 wt%. Moreover, during fabrication, the biocomposite gel was treated in an ultrasonic bath for 0, 15, 30, and 60 min. Further, thermogravimetric analysis, moisture absorption measurements, Fourier transform infrared spectroscopy, and scanning electron microscopy were performed. The biocomposite sample vibrated for 60 min had the highest thermal stability and exhibited low moisture absorption. The soil burial test proved that this biocomposite, as opposed to 0-min vibrated samples, has a slower biodegradation rate. This result was supported by morphological evaluation after biodegradation, in which the 60-min vibrated samples showed a coarse surface and low porosity formation.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Institute of Tropical Forestry and Forest Products
DOI Number: https://doi.org/10.1016/j.jmrt.2019.10.016
Publisher: Elsevier
Keywords: Nanocellulose; Biodegradation; Biocomposites; Hyacinth fiber; Thermogravimetric analysis
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 02 Jun 2021 21:03
Last Modified: 02 Jun 2021 21:03
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.jmrt.2019.10.016
URI: http://psasir.upm.edu.my/id/eprint/79546
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