Synergistic Toughening in Ternary Silica/Hollow Glass Spheres/Epoxy Nanocomposites

Keivani, Maryam. and Bagheri, Reza. and Kouchakzadeh, Mohammad Ali. and Abadyan, Mohamadreza. (2015) Synergistic Toughening in Ternary Silica/Hollow Glass Spheres/Epoxy Nanocomposites. POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING, 54 (6). pp. 581-593.

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Abstract

Herein, the fracture toughness of ternary epoxy systems containing nanosilica and hollow glass microspheres (HGMS) is investigated. The experimental measurements reveal synergistic fracture toughness in some hybrid compositions: The incorporation of 10 phr of HGMS and nanosilica alone modify the fracture toughness of epoxy by 39% and 91%, respectively. However, use of 10 phr hybrid modifier can enhance the fracture toughness of the resin up to 120%. Observations reveal different toughening mechanisms for the blends i.e., plastic deformation for silica nanoparticles and crack bifurcation for HGMS. Both of these toughening mechanisms additively contribute to the synergism in ternary epoxies.

Item Type: Article
Uncontrolled Keywords: Hybrid epoxy; Synergism; Fracture toughness; Crack bifurcation; Plastic deformation
Subjects: QT physiology
Divisions: Reserach Vice-Chancellar Department
Depositing User: zahra bagheri .
Date Deposited: 23 Jul 2017 05:38
Last Modified: 17 Feb 2018 07:01
URI: http://eprints.skums.ac.ir/id/eprint/1668

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