Experimentation and Prediction Analysis on the Mechanical Performance of Fish Scale and Coconut Shell Powder-Based Composites

ABSTRACT

In India, the utilization of natural fibers for developing new composites with desirable properties has been increasing from the last decade. Bio-waste such as fish scale and coconut shell (CS) powder was utilized to develop natural fiber-based composites in the present work. Three composite specimens, i.e., 30 wt% fish scale (FS), 30 wt% CS powder (CS), and 5 wt% fish scale (FS)+ 5 wt% CS powder specimen, were developed. The tensile, flexural, and impact strength testing was carried out on each specimen. A comparative study was drawn between the test results of the specimen. The experimental results showed that the CS powder-based composites yield improved mechanical properties compared to the fish scale-based composites. Furthermore, a quadratic and cubic mathematical model was developed on the experimental results of tensile and flexural testing for each specimen. The regression results show that the cubic regression model yields better prediction results than the quadratic regression model for all the composite specimens. The experimental results showed that the largely available fish scale and CS powder could be used to produce biowaste-based value-added material that provides a sustainable and eco-friendly approach.

摘要

在印度,近十年来,利用天然纤维开发具有理想性能的新型复合材料的数量不断增加. 本研究利用生物废弃物如鱼鳞和椰壳粉来开发天然纤维基复合材料. 研制了三种复合试样,即30%重量的鱼鳞 (FS)、30%重量的椰壳粉 (CS)和5%重量的鱼鳞 (FS)+5%重量的椰壳粉 (CS)试样. 对每个试样进行拉伸、弯曲和冲击强度试验. 对试样的试验结果进行了对比研究. 实验结果表明,与鱼鳞基复合材料相比,椰壳粉基复合材料的力学性能有所提高. 此外,根据每个试样的拉伸和弯曲试验结果,建立了二次和三次数学模型. 回归结果表明,对于所有复合材料试样,三次回归模型的预测结果优于二次回归模型. 实验结果表明,大量可用的鱼鳞和椰壳粉可用于生产基于生物废物的增值材料,提供了一种可持续和生态友好的方法.

KEYWORDS:

• Composites
• Natural fiber
• Fish scale
• Coconut shell powder
• Mechanical properties
• Regression