Abstract
This work aims to reveal how the alkali influences the mechanical behavior and structural stability of palm fiber. First, palm fiber samples were treated with 20% and 40% NaOH solutions separately for approximately 1, 2, 3, and 4 h at room temperature. Then the samples were characterized using tensile testing, Fourier transform infrared spectroscopy, X-ray diffraction, and thermogravimetric analysis. Results showed the tensile properties of alkali-treated fibers exceeded those of untreated fibers. Notably, the fibers treated with 40% NaOH for 1 h yielded the most significant improvements. The tensile strength, elongation at break, Young’s modulus, and yield point increased by 28.8%, 38%, 52.1%, and 64.7%, respectively, compared with the untreated fibers. The increase appeared to be due to the removal of non-cellulosic materials and rearrangement of the cellulose chains.
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Jiang, Y., Deng, P., Jing, L. et al. Tensile Properties and Structure Characterization of Palm Fibers by Alkali Treatment. Fibers Polym 20, 1029–1035 (2019). https://doi.org/10.1007/s12221-019-7841-3
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DOI: https://doi.org/10.1007/s12221-019-7841-3