Shady K.E
National Institute for standards
Egypt
Title: Effect of nano-zinc oxide on the structural characteristic, tensile and thermal properties of textile fabrics
Biography
Biography: Shady K.E
Abstract
Nanotechnology provides the ability to engineer the properties of materials. Nano Zinc Oxide having particle size ~ 50 nm was used with different concentrations to coat the following textiles fabrics: cotton, polyester and blend cotton/ polyester (65/35) using the pad-dry-cure method. The main advantages of these treated samples were their light weight, increasing surface area per unit volume with increasing treatment concentration. The treated samples were characterized through the following measurements, wide angle X-Ray diffraction, mechanical tests (tensile strength and elongation %) and thermal properties i.e. diffraction scanning calorimeter. The results indicated that the behavior of the change in crystal parameters for treated cotton samples greatly different as compared for polyester. The highest intensity and d-spacing in case of treated cotton were observed at zinc oxide concentration 0.25 % followed by a decrease. While polyester samples showed gradual increase in intensity with increasing zinc oxide concentration, and blend samples which has a hybrid structure followed the rule of mixture behavior. The order of improvement in crystalline parameters for the three treated samples was cotton, blend and polyester. Also, the order of improvement in mechanical properties were cotton , polyester and blend, these results can be attributed to the fact that nano size distribute uniformly on the surface, increase the surface area / unit volume thus, make the coated samples more elastic.