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Research Article

Characterization of Natural Cellulosic Fibers from Stem of Symphirema Involucratum Plant

, ORCID Icon, , MD &
Pages 5355-5370 | Published online: 02 Feb 2021
 

ABSTRACT

This study investigated the physical, chemical, thermal, morphological, and XRD analysis of Symphirema involucratum stem fiber to establish its suitability in composite reinforcements. The investigation on chemical components proved that the fiber possesses a good amount of cellulose content (57.32%) with low lignin (13.85%), hemicellulose (12.47%), wax (0.56%), moisture (9.11%), and ash (9.05%) contents. The fiber showed a density of 1389 kg/m3, a diameter of 542.26 ± 10.32 µm, and a crystallinity index of 28.22%. Higher maximum degradation temperature (350°C) with a kinetic activation energy of 74.88 kJ/mol obtained by thermogravimetric analysis. Nuclear magnetic resonance spectra confirmed the presence of high cellulose content at the intensities of the C-2, C-3, and C-5 lines. The microscopic examination of the SISF through a scanning electron microscope and atomic force microscopy revealed that the fiber possesses quite a high coarse fracture surface with pores. The properties of the SISF propose its suitability toward use as an alternative to man-made synthetic fibers.

摘要

研究了总苞茎纤维的物理、化学、热、形态和XRD分析,以确定其在复合增强材料中的适用性. 化学成分分析表明,该纤维纤维素含量高(57.32%),木质素含量低(13.85%),半纤维素含量低(12.47%),蜡含量低(0.56%),水分含量低(9.11%),灰分含量低(9.05%). 纤维密度1389kg/m3,直径542.26±10.32μm,结晶指数28.22%. 更高的最高降解温度(350°C),通过热重分析获得的动力学活化能为74.88 kJ/mol. 核磁共振波谱证实在C-2,C-3和C-5谱线的强度下存在高纤维素含量. 通过扫描电子显微镜和原子力显微镜对SISF进行了显微观察,结果表明,SISF纤维具有较高的粗糙断口和孔隙. SISF的性能表明其适合作为人造合成纤维的替代品使用.

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