Mechanics of Epoxy Nanocomposites: A Study on the Synergy of the Reinforcements
İnci Pir, Mertol Tüfekci, Seren Acarer Arat, Ekrem Tüfekci
TL;DR
This study explores how adding halloysite nanotubes and rubber to epoxy composites affects their mechanical properties and finds that combining them offers balanced performance.
Contribution
The novel contribution is demonstrating the synergistic effects of combining HNT and CTBN rubber in epoxy composites for balanced mechanical properties.
Findings
1% HNT reinforcement increases elastic modulus by 15% in tensile tests.
Hybrid composites (H10R05) show 16% higher stiffness than pure rubber systems while maintaining 44% higher ductility than pure epoxy.
Numerical modeling using FEH accurately predicts experimental trends with deviations under 5%.
Abstract
In this study, manufacturing and mechanical characterization are performed on halloysite nanotube (HNT)-reinforced epoxy composite, carboxyl-terminated butadiene-acrylonitrile (CTBN) rubber-added epoxy composite, and both HNT- and CTBN-rubber-added epoxy composites. It is aimed to explore the effects of HNT and CTBN rubber inclusions individually and the synergistic effects of HNT and CTBN rubber inclusions on the epoxy-based composite material. To achieve this, the mechanical characterization of the epoxy matrix composite is performed numerically and experimentally. To investigate the viscoelastic behavior, the samples are subjected to tensile and three-point bending tests at different strain rates (%1, %5, and %10 strain per minute) and to Charpy impact tests. The internal structures of the samples are observed using a scanning electron microscope (SEM). Results demonstrate that 1%…
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Taxonomy
TopicsPolymer Nanocomposites and Properties · Epoxy Resin Curing Processes · Polymer crystallization and properties