Journal
MICROSCOPY AND MICROANALYSIS
Volume 25, Issue 1, Pages 187-191Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S1431927618015106
Keywords
nanoparticles; carbon black; structural epoxy adhesives; mechanical properties; SEM analysis
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Funding
- Portuguese Foundation for Science and Technology (FCT) [SFRH/BPD/96992/2013]
- Fundação para a Ciência e a Tecnologia [SFRH/BPD/96992/2013] Funding Source: FCT
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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 (R) 120 and Vulcan (R) 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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