The Influence in Tensile and Impact Strength of Composite Material in Case of Curing Fiberglass with Nano Silica

In the resent decade, the composite materials became commonly used in different fields and sectors, specially in the airplane industry, military industry and spacecraft manufacturing. This widespread of using composites make scientists focusing their attention on studying the methods for improving the mechanical properties. In this research, the study concerned the growth and degradation in tensile and impact strength when curing the fiberglass with N. silica and used these fibers as a reinforcement material with epoxy in composite material. The methodology that adopted in research is preparation nanoparticle suspension that contains (1wt%, 3wt% and 5wt% SiO2 respectively) and H2O. The mixing of SiO2 and H2O done by using magnetic stirring and ultrasonic for disperse nano particles after that drying the fibers to remove the moisture, after that using the fibers as a reinforcement material with epoxy. The key findings were increasing the impact strength with percentage 43% as compared to control case (EP+2layers fiberglass) in the case of using samples fabricated of epoxy and 2 layers fiberglass immersed in (N.P.S) contains 1wt%SiO2 and 99wt% H2O. In general results of tensile decreased after curing the fibers with (N.P.S).