Slaked Lime Solution as a Viable Eco-friendly Treatment to Improve the Tensile Strength of Maize Stem Fibers

In this study, the effect of the environmentally friendly slaked lime solution on the tensile strength of maize stem fibers was investigated and compared with the tensile strength obtained with a 3% wt NaOH and 10% wt NaHCO3 solutions. Maize fibers from dried stems were manually extracted, cleaned,...

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Main Authors: H. Ramasawmy, J. Chummun, P. D. Emrith
Format: Article
Language:English
Published: Taylor & Francis Group 2022-10-01
Series:Journal of Natural Fibers
Subjects:
Online Access:http://dx.doi.org/10.1080/15440478.2021.1990177
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author H. Ramasawmy
J. Chummun
P. D. Emrith
author_facet H. Ramasawmy
J. Chummun
P. D. Emrith
author_sort H. Ramasawmy
collection DOAJ
description In this study, the effect of the environmentally friendly slaked lime solution on the tensile strength of maize stem fibers was investigated and compared with the tensile strength obtained with a 3% wt NaOH and 10% wt NaHCO3 solutions. Maize fibers from dried stems were manually extracted, cleaned, and treated with the respective three solutions at different soaking periods. The results showed that a maximum increase in tensile strength of 165.1% was obtained with the NaOH treatment (at 24 hours) followed by an increase of 107.1% (at 21 hours) for the Ca(OH)2, and a 46.6% (at 18 hours) increase for the NaHCO3 treatment. Analysis of the FTIR spectra revealed that the significant improvement in the tensile strength for the NaOH treatment is attributed to the partial transformation of cellulose I to cellulose II. However, the increase in the strength of the Ca(OH)2-treated fibers has been attributed first, to the significant reduction in the fiber cross-sectional area, second, to the removal of specific amorphous constituents such as hemicellulose, and to the formation of a stable calcium pectinate layer, which improves the fiber’s resistance to fracture.
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spelling doaj.art-1bcc2e2a806f4e039bab9aa024ec75d92023-09-20T13:25:57ZengTaylor & Francis GroupJournal of Natural Fibers1544-04781544-046X2022-10-0119149600961310.1080/15440478.2021.19901771990177Slaked Lime Solution as a Viable Eco-friendly Treatment to Improve the Tensile Strength of Maize Stem FibersH. Ramasawmy0J. Chummun1P. D. Emrith2University of Mauritius Reduit Republic of MauritiusUniversity of Mauritius Reduit Republic of MauritiusUniversity of Mauritius Reduit Republic of MauritiusIn this study, the effect of the environmentally friendly slaked lime solution on the tensile strength of maize stem fibers was investigated and compared with the tensile strength obtained with a 3% wt NaOH and 10% wt NaHCO3 solutions. Maize fibers from dried stems were manually extracted, cleaned, and treated with the respective three solutions at different soaking periods. The results showed that a maximum increase in tensile strength of 165.1% was obtained with the NaOH treatment (at 24 hours) followed by an increase of 107.1% (at 21 hours) for the Ca(OH)2, and a 46.6% (at 18 hours) increase for the NaHCO3 treatment. Analysis of the FTIR spectra revealed that the significant improvement in the tensile strength for the NaOH treatment is attributed to the partial transformation of cellulose I to cellulose II. However, the increase in the strength of the Ca(OH)2-treated fibers has been attributed first, to the significant reduction in the fiber cross-sectional area, second, to the removal of specific amorphous constituents such as hemicellulose, and to the formation of a stable calcium pectinate layer, which improves the fiber’s resistance to fracture.http://dx.doi.org/10.1080/15440478.2021.1990177maize stem fiberstensile strengthsodium hydroxidesodium bicarbonatecalcium pectinateslaked lime solution
spellingShingle H. Ramasawmy
J. Chummun
P. D. Emrith
Slaked Lime Solution as a Viable Eco-friendly Treatment to Improve the Tensile Strength of Maize Stem Fibers
Journal of Natural Fibers
maize stem fibers
tensile strength
sodium hydroxide
sodium bicarbonate
calcium pectinate
slaked lime solution
title Slaked Lime Solution as a Viable Eco-friendly Treatment to Improve the Tensile Strength of Maize Stem Fibers
title_full Slaked Lime Solution as a Viable Eco-friendly Treatment to Improve the Tensile Strength of Maize Stem Fibers
title_fullStr Slaked Lime Solution as a Viable Eco-friendly Treatment to Improve the Tensile Strength of Maize Stem Fibers
title_full_unstemmed Slaked Lime Solution as a Viable Eco-friendly Treatment to Improve the Tensile Strength of Maize Stem Fibers
title_short Slaked Lime Solution as a Viable Eco-friendly Treatment to Improve the Tensile Strength of Maize Stem Fibers
title_sort slaked lime solution as a viable eco friendly treatment to improve the tensile strength of maize stem fibers
topic maize stem fibers
tensile strength
sodium hydroxide
sodium bicarbonate
calcium pectinate
slaked lime solution
url http://dx.doi.org/10.1080/15440478.2021.1990177
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AT pdemrith slakedlimesolutionasaviableecofriendlytreatmenttoimprovethetensilestrengthofmaizestemfibers