Preparation and Characterizations of Nanomaterial by Pulsed Laser Ablation in Liquid (PLAIL) as Friendly Environment Paint

In this research, silver oxide and nickel oxide were prepared as collide using Pulsed Laser Ablation in Liquid (PLAIL) method in the water. In all preparation case, the laser parameters were fixed at optimum conditions (laser energy 600 mJ with frequency 1 Hz at room temperature) and nanomaterial was added in several proportions (2%, 4%, 6%, 8%, 10%, 12%) to the local paint. Physical properties of the nano-collide were studied by Uv-visible spectroscopy, Scanning Electron Microscopy (SEM), Atomic Force Microscope (AFM), contact angle (CA). A colloid as core-shell (composite materials) was obtained when the two slices were placed together in the water and ablated them by laser. It has shown the best results compared to using its individual Ni or Ag. The local paint was tested in two cases: the first by adding nickel and silver as micro-scale, and in the other in nanoscale to compare which one the best in the self-cleaning. The nanomaterial at a percentage 12% showed the best results when it added to the paint; it for their properties such as adhesion strength and hardness strength, exposure to weather conditions of temperature, and humidity. The adhesive strength increased when adding the nanomaterial from 112 to 139 before exposure to the weather and from 58 to 108 after exposure. The hardness also increased from 77.9 to 86.5 before exposure to the surrounding environment and from 94.2 to 96.8 after exposure. (paper)