Abstract:-
This research studies the relation between viscosity, density, surface tension, optical and microstructure properties of ZnO/waste polystyrene nanofluid. The nanofluid prepared by dissolving the waste polystyrene in toluene solvent then mixed with0.1, 0.3, 0.6, 0.9 and 1.2 wt% of ZnO nanoparticles (NPs) using sonication process. XRD and AFM are used to characterize ZnO NPs. Cone-plate viscometer and tensiometer is used to examine the viscosity and surface tension. UV- visible and optical microscopy is used to examine the microstructure and optical properties of the nanofluid. The results show that the viscosity and density decreases at lower ratio then increased at high ratio of ZnO NPs, while the surface tension increases at lower ration then increases at higher ratio of ZnO NPs. The UV visible shows that the blue shift peak of Plasmon surface resonance at 0.1 of ZnO NPs then red shift increased progressively up to 1.2 of ZnO NPs. The image of optical microscopy indicates lower agglomeration at 0.1 of ZnO NPs as compared with the other ratio. There is strong relation obtained between physical and morphological properties of the waste polystyrene nanofluid. In general from physical properties can predicate the morphological properties and vice versa.