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Please use this identifier to cite or link to this item: 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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