Extraction and Characterization of Natural Cellulosic Fiber from Taraxacum Sect. Ruderalia

ABSTRACT

The aim is to explore the utilization of cellulosic fibers extracted from the Taraxacum Sect. Ruderalia, which is also known as dandelion, introduces a potential reinforcement for the green composite industry. This research is focused on the analysis of chemical, physical, thermal, and morphological properties of the Taraxacum Sect. Ruderalia fibers. Its lightweight (1.397 g/cm³) with the presence of an acceptable cellulose ratio (52.7%) and high crystallinity (69.59%) provide comparable tensile strength (57.36 MPa) and Young’s modulus (2.96 GPa) for Taraxacum Sect. Ruderalia fibers. The fibers are experimentally thermal resistant to 272°C according to TGA that may be profitable in extrusion processes in polymeric composite manufacturing. The average fiber diameter and wall thickness were optically 233 µm and 1.5 µm, respectively. Taraxacum Sect. Ruderalia fibers have a rough surface character with some irregularities such as porosities, particles, indentations, protrusions, and also the microfibrillar structure which can support mechanical interlocking with polymer in a composite system. With all these encouraging properties, Taraxacum Sect. Ruderalia fibers can be good alternative reinforcement for common cellulosic bast fibers in the development of ecologically friendly and sustainable polymeric-based materials.

摘要

其目的是探索从Taraxacum Sect. Ruderalia (也称为蒲公英) 中提取的纤维素纤维的利用, 这为绿色复合材料行业带来了潜在的增强. 本研究主要分析蒲公英科植物的化学, 物理, 热学和形态学特征鲁德拉利亚纤维. 其重量轻 (1.397 g/cm3), 纤维素比例可接受 (52.7%), 结晶度高 (69.59%), 为蒲公英组提供了相当的拉伸强度 (57.36 MPa) 和杨氏模量 (2.96 GPa) 。鲁德拉利亚纤维. 根据TGA, 这些纤维在实验上耐热272oC, 这在聚合物复合材料制造的挤出工艺中可能是有益的. 平均纤维直径和壁厚在光学上分别为233µm和1.5 µm. Taraxacum Sect. Ruderalia纤维具有粗糙的表面特征, 具有一些不规则性, 例如孔隙率, 颗粒, 凹痕, 突起, 以及微纤维结构, 可以支持复合系统中与聚合物的机械联锁. 具有所有这些令人鼓舞的性能, Taraxacum Sect. Ruderalia纤维可以作为普通纤维素韧皮纤维的良好替代增强材料, 用于开发生态友好和可持续的聚合物基材料.

KEYWORDS:

• Natural fiber
• green composites
• characterization
• sustainability
• taraxacum sect. ruderalia

关键词:

• 天然纤维
• 绿色复合材料
• 刻画
• 持续性

Disclosure statement

No potential conflict of interest was reported by the author(s).

Supplementary material

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