Characterizing Cryptostegia grandiflora stem fiber for reinforcing lightweight polymer composites: A comprehensive study of its physical, chemical, and thermal properties

Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering Pub Date : 2024-06-05 DOI:10.1177/09544089241259335

M. Ramesh, I. Jenish, Tamil Selvan M, A. Felix Sahayaraj

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Abstract

This study aimed to characterize Cryptostegia grandiflora stem fiber (CGSF) as a potential reinforcement material for lightweight polymer composites. Natural fiber-reinforced materials have gained attention as a promising alternative to synthetic fibers due to their comparable strength and modulus, and lack of harmful chemicals. The physical, chemical, and thermal properties of CGSF were investigated through fiber roughness, chemical measurement, physical measurement, Fourier transform infrared spectroscopy, XRD, water absorption, thermogravimetric analysis, and SEM conformation analysis. The results showed that CGSF has a high cellulose content (80.3 wt.%) and specific strength, making it suitable for use in polymer composites. Its flaky layered outer surface provides a high modulus, and its low microfibril angle observed through electron microscopy results in strong bonding qualities. The fiber also demonstrated improved heat stability up to 254–387 °C through thermogravimetric analysis, meeting the requirements for polymerization. These findings demonstrate the potential of CGSF as a natural reinforcement material for lightweight polymer composites.

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表征用于增强轻质聚合物复合材料的隐花茎纤维：对其物理、化学和热性能的综合研究

本研究旨在分析隐花植物茎纤维（CGSF）作为轻质聚合物复合材料潜在增强材料的特性。天然纤维增强材料因其具有可比的强度和模量，且不含有害化学物质，作为合成纤维的一种有前途的替代材料而备受关注。通过纤维粗糙度、化学测量、物理测量、傅立叶变换红外光谱、XRD、吸水率、热重分析和 SEM 构象分析，研究了 CGSF 的物理、化学和热性能。结果表明，CGSF 具有较高的纤维素含量（80.3 wt.%）和比强度，因此适合用于聚合物复合材料。其片状分层外表面具有较高的模量，通过电子显微镜观察到的较低微纤丝角使其具有较强的粘合性。通过热重分析，这种纤维的热稳定性也有所提高，温度可达 254-387 ℃，符合聚合要求。这些发现证明了 CGSF 作为轻质聚合物复合材料天然增强材料的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering

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