Mechanical and Wear Behavior of Halloysite Nanotubes Filled Silk/Basalt Hybrid Composites Using Response Surface Methodology
Box-Behnken design; HNTs; Mechanical properties; Response surface methodology; SF + BF/Ep hybrid composites; Wear; Wear mechanisms
The aim of this study is to develop bio-friendly light weight polymer nanocomposites for load bearing applications and to evaluate the influence of halloysite nanotubes (HNTs) on mechanical as well as wear behavior of silk fiber (SF) and basalt fiber (BF) reinforced epoxy (Ep) composites. HNT filled biocomposites were fabricated using vacuum bagging technique. The Box-Behnken design (BBD) of experiment with Response surface methodology (RSM) was used to conduct the dry-sliding wear tests on a pin on disc apparatus. Tribo-mechanical properties and worn surface micrographs of hybrid composite samples were analyzed. Hardness, tensile strength and wear resistance behavior of SF + BF/Ep hybrid composites were substantially improved with the incorporation of HNTs. It was observed from the confirmation test that there is a strong agreement between the experimental findings as well as the predicted values, with a minimum reported error of <5% for HNT-SF + BF/Ep hybrid nanocomposites. SEM micrographs of the worn-out surface of HNT filled SF + BF/Ep composite exhibited fiber breakage, pulverized matrix, good interfacial bonding and fractured fibers. The novelty of the current research work is the development of eco-friendly polymeric composites for wear resistant and structural applications. The effect of hybridization (fiberssilk and basalt, fillersHNTs) on the tribo-mechanical properties of polymeric composites were investigated for the first time. The study showed that the mechanical as well as the tribological properties of SF and BF reinforced epoxy composites were enhanced with the addition of nanofiller. The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2023.
Darshan S.M.; Suresha B.; Harshavardhan B.; Vanarotti M.B.; Waddar S.; Thomas S.; Xavier L.F.
Springer Proceedings in Materials, Vol-32, pp. 387-402.
Darshan S.M., Department of Mechanical Engineering, School of Engineering and Technology, CHRIST (Deemed to be University), Bengaluru, 570008, India; Suresha B., Department of Mechanical Engineering, The National Institute of Engineering, Mysuru, 570008, India; Harshavardhan B., Department of Mechanical Engineering, The National Institute of Engineering, Mysuru, 570008, India; Vanarotti M.B., Department of Mechanical Engineering, Kolhapur Institute of Technologys, College of Engineering, Kolhapur, 416234, India; Waddar S., Department of Mechanical Engineering, MVJ College of Engineering, Bengaluru, 560067, India; Thomas S., Department of Mechanical Engineering, School of Engineering and Technology, CHRIST (Deemed to be University), Bengaluru, 570008, India; Xavier L.F., Department of Mechanical Engineering, School of Engineering and Technology, CHRIST (Deemed to be University), Bengaluru, 570008, India