•-Characterization of Epoxy Composites Reinforced by Waste Bio-Fibers -2015. -Diffusion Study of Different Types of Water in Polymer Composite Reinforced With Chicken Feather Fibers-2017. -Synthesis and Study FTIR Spectroscopy of the influence Lanthanum doping on the structural properties of BaTiO3 nanopowders -2018. -Study the effect of adding ceramic fillers in improving some mechanical properties for polymer composites -2018. -Effect of Silver Nanoparticle on Structural and some (Optical, Electrical) Properties of Poly (vinyl chloride) Films -2020.