A comprehensive chemical, physical, mechanical, and thermal characterization of novel cellulosic plant extracted from the petiole of Washingtonia robusta fibers

IF 3.5 4区 工程技术 Q3 ENERGY & FUELS
Hicham Elmoudnia, Paulina Faria, Rachid Jalal, Mohamed Waqif, Latifa Saâdi
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引用次数: 0

Abstract

This research aims to extract fibers from Washingtonia robusta petiole waste (WRP) and characterize them to investigate their potential. WRP fibers were treated for 2 h using different concentrations of NaOH solution (1, 3, 5, and 10% by weight) and then soaked for 2 h. The treatments adopted have shown improvements in certain chemical, physical, morphological, thermal, and mechanical properties. This study revealed that the crystallinity index was improved by 40 to 50%. FTIR analysis confirmed the reduction and degradation of hemicellulose for the optimally alkalized fiber. The SEM micrograph results of alkali-treated fibers showed rougher surfaces. The higher thermal stability was achieved when the alkali treatment with 5% NaOH was adopted. Further, fibers treated with 5% NaOH demonstrated interesting tensile properties, clearly superior to those found in the literature: tensile strength, Young’s modulus, and strain to failure of 678 ± 35.24 MPa, 11.2 ± 1.2 GPa, and 22.6% ± 0.75, respectively, with an average diameter of 314 ± 0.02 μm. The characterization results indicate that these treated fibers can be a good alternative natural reinforcement material in lightweight polymer composites or other composites for the building industry.

综合化学,物理,机械和热特性的新型纤维素植物提取的叶柄华盛顿罗布斯塔纤维
本研究旨在从罗布达叶柄废物(WRP)中提取纤维,并对其进行表征,探讨其潜力。WRP纤维用不同浓度的NaOH溶液(重量比为1、3、5和10%)处理2小时,然后浸泡2小时。所采用的处理方法在某些化学、物理、形态、热学和机械性能方面都有改善。该研究表明,结晶度指数提高了40 ~ 50%。FTIR分析证实了最佳碱化纤维半纤维素的还原和降解。碱处理纤维的扫描电镜结果显示表面粗糙。采用5% NaOH碱液处理,获得了较高的热稳定性。此外,经5% NaOH处理的纤维表现出有趣的拉伸性能,明显优于文献中发现的拉伸性能:拉伸强度、杨氏模量和破坏应变分别为678±35.24 MPa、11.2±1.2 GPa和22.6%±0.75,平均直径为314±0.02 μm。表征结果表明,这些处理过的纤维可以作为轻质聚合物复合材料或其他建筑行业复合材料的良好替代天然增强材料。
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来源期刊
Biomass Conversion and Biorefinery
Biomass Conversion and Biorefinery Energy-Renewable Energy, Sustainability and the Environment
CiteScore
7.00
自引率
15.00%
发文量
1358
期刊介绍: Biomass Conversion and Biorefinery presents articles and information on research, development and applications in thermo-chemical conversion; physico-chemical conversion and bio-chemical conversion, including all necessary steps for the provision and preparation of the biomass as well as all possible downstream processing steps for the environmentally sound and economically viable provision of energy and chemical products.
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