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柚木纤维增强聚合物复合材料的开发与评估及静态分析

Development and Evaluation of a Polymer Composite Material Reinforced by Tectona Grandis Fiber, with Static Analysis.

作者信息

Bavanam Nagaraja Reddy Sandeep, Buddha Kishor, Chandra Babu Naidu Kadiyala, Baba Basha Dudekula

机构信息

Department of Mechanical Engineering, School of Technology, GITAM University, Bangalore 562163, Karnataka, India.

Department of Physics, GITAM Deemed to be University, Bangalore 561203, Karnataka, India.

出版信息

Polymers (Basel). 2025 Feb 27;17(5):634. doi: 10.3390/polym17050634.

Abstract

This research seeks to investigate the viability of using Tectona grandis wood powder as a reinforcement material in polymer matrix composites because of the increasing awareness of natural fibers that offer impressive characteristics and cost-effectiveness in addition to being biodegradable. The fibers were mixed with epoxy resin, and the mixture was passed through a filter to remove fiber bundles and then compression molded to form composites, which were cured in an oven. Different experiments were performed on the composite to measure its mechanical characteristics. The tests performed were a tensile test to measure the mechanical properties of the material like strength and elastic properties, a compression test for evaluating the behavior of the material under a compressive load, a hardness test for the rate of indentation resistivity, and an impact test for the material's ability to withstand shock loads. The results showed that fiber reinforcement caused a significant enhancement in the mechanical aspect of the composite, where the compression strength obtained was 249.83 MPa, and the tensile strength obtained was 17.98 MPa. SEM microstructural analysis and a moisture absorption test were performed, while an additional analysis was carried out using Ansys work bench software. This research proves that Tectona grandis wood powder improves the mechanical properties of polymer composites and represents a viable substitute for synthetic reinforcements.

摘要

由于对天然纤维的认识不断提高,天然纤维除了具有生物可降解性外,还具有令人印象深刻的特性和成本效益,因此本研究旨在探讨使用柚木粉作为聚合物基复合材料增强材料的可行性。将纤维与环氧树脂混合,混合物通过过滤器以去除纤维束,然后进行压缩模塑以形成复合材料,该复合材料在烘箱中固化。对该复合材料进行了不同的实验以测量其机械特性。所进行的测试包括:拉伸试验,用于测量材料的强度和弹性等机械性能;压缩试验,用于评估材料在压缩载荷下的行为;硬度试验,用于测量抗压痕率;冲击试验,用于测试材料承受冲击载荷的能力。结果表明,纤维增强显著提高了复合材料的机械性能,其中获得的压缩强度为249.83MPa,拉伸强度为17.98MPa。进行了扫描电子显微镜微观结构分析和吸湿试验,同时使用Ansys工作台软件进行了额外的分析。本研究证明,柚木粉改善了聚合物复合材料的机械性能,是合成增强材料的可行替代品。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a4f/11902512/3efc234811de/polymers-17-00634-g001.jpg

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