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The Mechanical Response of a Structural Epoxy Adhesive Reinforced with Carbon Black Nanoparticles
Ricardo J C Carbas1, Lucas F M da Silva2, Luís F S Andrés2
11Faculty of Engineering,Institute of Science and Innovation in Mechanical and Industrial Engineering (INEGI),University of Porto,4200-465 Porto,Portugal.
Abstract:
The influence of the concentration of carbon black nanoparticles on the mechanical behavior of a structural adhesive was studied to evaluate and understand the stiffness, strength, and deformation behavior of a reinforced epoxy adhesive. Two carbon black nanoparticles with different dielectric properties and sizes (Monarch® 120 and Vulcan® XC72R) were studied. A bi-component structural epoxy adhesive was selected. Specimens with different concentrations of carbon black were manufactured (0, 5, 10, and 20% on volume of resin) for each type of nanoparticle. The specimens were cured in a hydraulic hot-plates press machine. The mechanical behavior of the adhesives was found not to vary significantly as a function of carbon black nanoparticles amount. A scanning electron microscopy analysis was performed to evaluate the fracture surface. The fracture surfaces of specimens were correlated with the mechanical response obtained through tensile tests.
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