Temperature Effect on physical and Mechanical Properties of epoxy Composite Specimens

Abstract

Abstract The aim of this study is to temperature effect on the mechanical properties of Epoxy DGEBA, with adding zirconium oxide (ZrO2) nanostructures. At different ratios (0.1,0.2, 0.3, 0.4, 0.5, 0.6 and 0.7) wt% of zirconium oxide (ZrO2) nanostructures, which are prepared by hand lay-up method, and then the samples are exposed to different temperatures (40, 50, 60, and 70 °C) for 16 hr. the results showed that, the compressive strength, impact strength and hardness decreases increasing the temperature of the curing. The damping properties percentages of these properties are (3.74%, 79.61% and 23.33%) for compressive, respectively; for adding 0.4% wt. from zirconium oxide (ZrO2) nanostructures. The reduction in strength of epoxy - nanomaterialos is attributed to oxidation at the near-surface. The increasing of the temperatures have the opposite effect on the mechanical properties of the epoxy up to 0.3 addition of the nano materials the increasing of the addition of the nano material led to decrease the effect of temperature on the mechanical properties. The water absorption decreasing with increase the percentage of the addition of nano materials at different temperature.