http://repository.iitr.ac.in/handle/123456789/26678| Title: | Improved mechanical performance and unique toughening mechanisms of UDM processed epoxy-SiO2 nanocomposites |
| Authors: | Kumar K. Goyat M.S. Solanki A. Kumar, Arun Kant R. Ghosh P.K. |
| Published in: | Polymer Composites |
| Abstract: | This work demonstrates improved mechanical performance and unique toughening mechanisms of ultrasonic dual mixing (UDM) processed epoxy-SiO2 nanocomposites. The loading of SiO2 nanoparticles in the epoxy matrix was varied from 1 to 5 vol% to produce the nanocomposites. The mechanical performance was evaluated by measuring the tensile and fracture properties of the nanocomposites. An optimal nanoparticle loading of 3 vol% in epoxy was found vital for improved performance of the nanocomposite. The optimal nanoparticle loading in epoxy lead to an increase of 18.45% in tensile strength and 120% increase in fracture toughness (GIC) compared to the neat epoxy. The fracture surface analysis revealed various toughening mechanisms including particle pull out, plastic void growth, plastic deformation, and crack deflection along with a unique mechanism of strong interfacial bonding between SiO2 particle and epoxy matrix. © 2021 Society of Plastics Engineers. |
| Citation: | Polymer Composites, 42(11): 6000-6009 |
| URI: | https://doi.org/10.1002/pc.26280 http://repository.iitr.ac.in/handle/123456789/26678 |
| Issue Date: | 2021 |
| Publisher: | John Wiley and Sons Inc |
| Keywords: | epoxy fracture analysis mechanical properties nano-SiO2 nanocomposite |
| ISSN: | 2728397 |
| Author Scopus IDs: | 7402676311 25321203300 25640179800 57223779688 56490056800 35459954300 |
| Author Affiliations: | Kumar, K., Department of Physics, J.C. Bose University of Science and Technology, YMCA, Faridabad, Haryana, India Goyat, M.S., Department of Applied Science, School of Engineering, University of Petroleum & Energy Studies, Dehradun, Uttarakhand, India Solanki, A., Department of Physics, School of Technology, Pandit Deendayal Energy University, Gandhinagar, Gujarat, India Kumar, A., Department of Physics, J.C. Bose University of Science and Technology, YMCA, Faridabad, Haryana, India Kant, R., Department of Metallurgical & Materials Engineering, Punjab Engineering College (Deemed to be University), Chandigarh, Punjab, India Ghosh, P.K., Department of Metallurgical & Materials Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India |
| Funding Details: | |
| Corresponding Author: | Kumar, K.; Department of Physics, India; email: kaushalbsr@gmail.com |
| Appears in Collections: | Journal Publications [HRE] |
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