Effect Of High Impact Loading On Nanoclay Reinforced Polypropylene | 34934
Journal of Material Sciences & Engineering
Our Group organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.
Except for a few attempts to show the high impact load effect, the difference in level of contribution of nanoclay on polymers at
their quasi-static and dynamic mechanical behaviors is a lacuna in the available literature. Quasi-static and dynamic responses
of a high impact copolymer Polypropylene (PP) in its neat and nanoclay-filled forms are presented in this study. The study helped in
percentage quantification of differences in nano-clay effect, imposed by the very nature of loadings. The PP-nanoclay nano-composite
(PP+5 wt% nc) is prepared by melt compounding of 5 wt% nanoclay (nc) with PP using twin screw extruder. Tensile specimens for
UTM were prepared using injection molding machine. Dynamic loading specimens were made for Split Hopkinson Pressure Bar
(SHPB) using an extruded sheet. The experiments were performed at strain rates of 10-2 s-1 and 2.2*104 s-1 for quasi-static and dynamic
loadings, respectively. As a result, the contribution of 5 wt% nanoclay on PP at quasi-static loading was shown to be 2.6%, 10.8% and
13% on yield stress, Young’s modulus and toughness, respectively. However, significantly different results were observed after dynamic
loading experiments. Intense improving contributions of 506% and 53% on impact modulus and impact toughness respectively were
observed, while, minor reduction (3.5%) in plateau (yield) stress was experienced in the case of dynamic impact loading.
Shishay Amare Gebremeskel has completed his BSc degree in Mechanical Engineering in 2008 and his MTech degree in Manufacturing Engineering in 2010. He has two years of teaching experience as a Lecturer at Bahir-Dar University in Ethiopia. He is now a PhD Research Scholar at Indian Institute of Technology Delhi (IITD) under the guidance of Prof. Naresh Bhatnagar in the Department of Mechanical Engineering. So far, he has published papers in three international journals.