Investigation of the Characteristic and Sound Absorption Properties of a New Cellulose-based Fiber from Alcea rose L. Plant

ABSTRACT

In this study, cellulose-based fibers were successfully obtained from Alcea rose L. plant stem of approximately 320 µm diameter, and then elemental analysis, surface morphology, functional groups analysis, crystallinity index, thermal stability, and mechanical behaviors were investigated. Furthermore, a surface was constituted with Alcea rose L. (ARL) fibers by the knitting technique, and sound absorption coefficient was measured. Elemental analysis results show that ARL fibers have 50.06% carbon and 49.84% oxygen. Morphology analysis indicates that the fibers have a rough surface and can support high interfacial strength when using as reinforcement in composites. Fourier transform infrared (FTIR) spectra and thermogravimetric analysis (TGA) confirm the presence of cellulose compound in fiber structure, also ARL fibers can be stable up to 361.39°C. The X-ray diffraction (XRD) analysis outcomes that ARL fibers have 80% crystallinity index with an average crystallinity size of 3.89 nm. Under the tensile load, ARL fibers tensile strength is 80.96 MPa and Young’s modulus is 3.28 GPa with an elongation rate of 2.47%. The sound absorption of ARL surface is suitable ranges and it can be concluded that the fibers can be used as sound absorbers.

摘要

在本研究中, 成功地从Alcea rose L.植物茎中获得了直径约320µm的纤维素基纤维, 然后对其进行了元素分析, 表面形态, 官能团分析, 结晶度指数, 热稳定性和机械性能研究. 此外, 通过编织技术, 用Alcea rose L.(ARL) 纤维构成表面, 并测量吸声系数. 元素分析结果表明, ARL纤维的碳含量为50.06%, 氧含量为49.84%. 形态分析表明, 纤维表面粗糙, 在复合材料中用作增强材料时具有较高的界面强度. 傅立叶变换红外光谱 (FT-IR) 和热重分析 (TGA) 证实了纤维结构中存在纤维素化合物, 并且ARL纤维在361.39°C下稳定. X射线衍射 (XRD) 分析结果表明, ARL纤维具有80%的结晶指数, 平均结晶尺寸为3.89 nm. 在拉伸载荷下, ARL纤维的拉伸强度为80.96MPa, 杨氏模量为3.28GPa, 伸长率为2.47%. ARL表面的吸声量在合适的范围内, 可以得出纤维可以用作吸声材料的结论.

KEYWORDS:

• Alcea rosea L.
• natural fiber
• pyhsico-chemical properties
• crystallinity index
• mechanical properties
• sound absorption coefficient

关键词:

• Alcea rosea L.
• 天然纤维
• 理化性质
• 结晶度指数
• 机械性能
• 吸声系数

Disclosure statement

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