Effect of Nanoparticle in FRP C omposite s on Evaluation of Loading Rate Sensitivity

Alumina/epoxy nanocomposites were synthesized using 50 nm alumina nanoparticles. The resulting nanocomposites display a room temperature brittle-to ductile transition in flexural test (3-point bend test) with an increase in the ILSS value with increase of loading speed. Formation of double layer at the interface region because of a common surface, which is created by molecular mobility (physic-chemical bond) of matrix affect the interfacial interaction zone. Nevertheless, the most striking result is that mirror, mist and hackle region observed in fractography analysis.