https://orcid.org/0000-0003-1190-2838
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ABSTRACT
This study focuses on enhancing the free vibration characteristics of epoxy polymers by reinforcing it with Phoenix sp. fibers and nano-clay for the first time. The composites were prepared by varying the fiber length, fiber volume fraction, concentration of NaOH treatment, and weight percentage of nano-clay and subjected to modal analysis. The optimum fiber length and fiber volume fraction for better vibration characteristics is found to be 30 mm and 40%, respectively. Moreover, the results revealed that the chemical treatment and nano-clay addition show the largest effect on vibration behavior of the composites. Based on the experimental data, it is concluded that the natural frequency of epoxy polymer could be enhanced up to 242% by using aforesaid reinforcements.
摘要
本研究首次采用凤凰纤维和纳米黏土对环氧聚合物进行增强，以增强其自振特性.通过改变纤维长度、纤维体积分数、NaOH处理浓度和纳米粘土的重量百分比制备复合材料，并进行模态分析.最佳纤维长度和纤维体积分数分别为30mm和40%.结果表明，化学处理和纳米粘土的加入对复合材料的振动性能影响最大.根据实验数据，得出了采用上述增强剂可使环氧树脂自振频率提高242%的结论.