AI Article Synopsis
- This study explores how the addition of modified layered silicates affects the fatigue behavior and failure mechanisms of epoxy resin nanocomposites.
- Clay-epoxy nanocomposites were created using a 1-Methylimidazole curing agent, and advanced techniques like XRD and TEM confirmed the typical clay morphology in these materials.
- The research found that incorporating silicates significantly improved the fatigue life of the epoxy at lower strain amplitudes and altered the fracture mechanisms, as evidenced by E-SEM observations.
Article Abstract
This work investigates the fatigue behaviour and the mechanism of fatigue failure of an epoxy resin with a dispersion of modified layered silicates in the polymer matrix. The fatigue properties are very important for structural application of nanocomposite materials. Clay-epoxy nanocomposites were successfully synthesized with a commercially available 1-Methylimidazole curing agent. The XRD and TEM findings demonstrated a pattern of clay morphology typically found in nanocomposite systems. The fatigue performance and fatigue failure mechanism of the clay-epoxy materials were studied under repetitive bending loads. The results showed that the fatigue life of filled epoxy improved significantly at strain amplitudes below a threshold value. The E-SEM observations of the epoxy and the clay-epoxy fracture surfaces showed different patterns. In conclusion, the addition of silicate strongly determines the fracture mechanism and enhances the fatigue performance.
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| http://dx.doi.org/10.1166/jnn.2006.655 | DOI Listing |
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