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Green nanocomposites from cellulose nanowhiskers and Jatropha oil-based polyurethane


Citation

Osman Al-Edrus, Syeed SaifulAzry and Chuah Abdullah, Luqman and Md Tahir, Paridah and Aung, Min Min and Zainudin, Edi Syams (2017) Green nanocomposites from cellulose nanowhiskers and Jatropha oil-based polyurethane. In: Cellulose-Reinforced Nanofibre Composites. Elsevier, United Kingdom, pp. 391-400. ISBN 9780081009574

Abstract / Synopsis

A green nanocomposite film from cellulose nanowhiskers (CNWs) and Jatropha oil-based polyurethane (JOPU) was prepared. A commercial grade of microcrystalline cellulose derived from wood pulp was purchased and isolated to CNW via acid hydrolysis using 65% (w/w) sulfuric acid. JOPU was produced using in-house synthesis of Jatropha-oil polyol and 4,4′-diphenyl-methane diisocyanate (MDI). Dimethylformamide (DMF) was used as a polar organic solvent to disperse CNWs incorporated with JOPU at different ratios. Green nanocomposite films were prepared by casting in Teflon petri dish and thermal curing of the stable suspensions under vacuum conditions. Both CNW and composite films were characterized. The morphology of CNW was examined by using transmission electron microscopy (TEM) and field emission scanning electron microscopy (FESEM). Chemical structures of JOPU and JOPU/CNW films were analyzed using Fourier transform infrared spectroscopy (FTIR). Thermal stability tests of the films were carried out using thermogravimetric analysis (TGA). Mechanical properties, such as tensile strength, Young modulus, and elongation at break, were investigated. Other properties such as density and water uptake were also determined. It can be concluded that composite films made from JOPU with CNW as filler showed an improved performance over JOPU films.


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Additional Metadata

Item Type: Book Section
Divisions: Faculty of Engineering
Faculty of Forestry
Faculty of Science
DOI Number: https://doi.org/10.1016/B978-0-08-100957-4.00017-6
Publisher: Elsevier
Keywords: Cellulose nanowhiskers; Biobased polyurethane; Jatropha oil; Jatropha curcas L.; Green nanocomposites
Depositing User: Azhar Abdul Rahman
Date Deposited: 02 Dec 2019 17:06
Last Modified: 02 Dec 2019 17:06
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/B978-0-08-100957-4.00017-6
URI: http://psasir.upm.edu.my/id/eprint/63118
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