Impact and Compression Behavior of Habesha Moringa/Bamboo Fiber Reinforced Epoxy Composites

ABSTRACT

Nowadays, synthetic fiber composites are in decline because of their high initial cost and detrimental impact on the environment. The main aim of this work is to develop natural fiber composite materials that are made from moringa and bamboo fibers by using the hand lay-up method by maintaining a constant 40 vol.% of epoxy content. Both the natural composites were treated with NaOH and also compared with their hybrid composite. The mechanical properties, such as compression, hardness, impact, tensile, flexural properties were investigated. Additionally, thermo gravimetric analysis of composites was also carried out. The biggest boost in compressive strength was seen in bamboo with 60% volume, with improvements ranging from a pure resin value of 13.06 to 68.43% compared to moringa 60% and 30–30% moringa-bamboo. The maximum rise in impact strength was recorded by BM-30/30 at 21J. In addition to this, the highest hardness value was observed by moringa-reinforced composites (MM-60) and noted to be around 40.83 HV. Tensile and flexural properties of all the composites reveal improvement as compared with neat epoxy composites. Bamboo exhibits a considerable improvement in thermal stability as compared with other compositions. Scanning electron micrographs were used to analyze the structure-property correlations.

摘要

如今，合成纤维复合材料由于其高昂的初始成本和对环境的有害影响而正在衰落. 这项工作的主要目的是开发由辣木和竹纤维制成的天然纤维复合材料，通过保持环氧树脂含量不变的40体积%，采用手工铺层法. 两种天然复合材料都用NaOH处理，并与它们的杂化复合材料进行了比较. 研究了压缩、硬度、冲击、拉伸、弯曲等力学性能. 此外，还对复合材料进行了热重分析. 抗压强度提高最大的是体积为60%的竹子，与60%和30-30%的辣木相比，纯树脂值提高了13.06%至68.43%. BM-30/30在21J时记录到冲击强度的最大上升。除此之外，辣木增强复合材料（MM-60）的硬度值最高，约为40.83HV. 与纯环氧树脂复合材料相比，所有复合材料的拉伸和弯曲性能都有所提高. 与其他成分相比，竹子在热稳定性方面表现出相当大的改善. 扫描电子显微照片用于分析结构-性能的相关性.

KEYWORDS:

• Natural fibers
• moringa fiber
• bamboo fiber
• mechanical properties
• thermo gravimetric analysis

关键词:

• 天然纤维
• 辣木纤维
• 竹纤维
• 机械性能
• 热重分析

Acknowledgments

The authors thank the department of Mechanical Engineering, ASTU, Ethiopia, for providing the facilities and support to conduct this research. The authors extend their appreciation to the Deanship of Scientific Research at King Khalid University Abha 61421, Asir, Kingdom of Saudi Arabia for funding this work through the Large Groups Project under the grant number RGP.2/352/44. The authors acknowledge the Deanship of Scientific Research, Vice Presidency for Graduate Studies and Scientific Research at King Faisal University, Saudi Arabia, for financial support under the annual funding track [GRANT5774].

Disclosure statement

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

Authors’ contributions

Mohammad Yassin, Kiran Shahapurkar, C. Venkatesh – Conceptualization, Mohammad Yassin, Fadi Althoey, Yasin Onuralp Ozkilic – Methodology, Vineet Tirth, Ali Algahtani, Tawfiq Al-Mughanam, Abdulaziz H. Alghtani – Supervision, Mohammad Yassin, Kiran Shahapurkar – Writing – original draft, Kiran Shahapurkar, C. Venkatesh, Vineet Tirth – Investigation, Ali Algahtani, Tawfiq Al-Mughanam- Review and Editing.

Availability of data and materials

All the data used for the study is available in the manuscript.

Supplemental data

Supplemental data for this article can be accessed online at https://doi.org/10.1080/15440478.2024.2311301.

Additional information

Funding

Deanship of Scientific Research at King Khalid University Abha 61421, Asir, Kingdom of Saudi Arabia through the Large Groups Project under grant number RGP.2/352/44. Deanship of Scientific Research, Vice Presidency for Graduate Studies and Scientific Research at King Faisal University, Saudi Arabia under the annual funding track [GRANT5774].