Abstract
Rheological properties investigation of polymer solution with inorganic nanoparticles aqueous mixtures were studied. In the present work, Polyvinyl Acetate (PVAc) was used in a form aqueous solution, while titanium dioxide nanoparticles (TiO2) was used as an inorganic additive. PVAc was loaded with 0, 0.5, 1, 2, 3, and 4 weight percent (wt. %) of TiO2 nanoparticles, where the maximum concentration of TiO2 was 4 wt. % that gives the enough information about the behaviour. Cone on plate Rheometer was applied to measure rheological characteristics of PVAc/TiO2 mixture flow at different shear rates, while Tensometer, pH meter, and Densitometer were used to peer understanding of flow mechanisms. The results were shown a significant change in shear stress shear rate behavior with the TiO2 ratio increasing, especially at 2-3 wt. %. The shear stress decreasing with the shear rate increases. The viscosity tends to decrease with the high shear rate values about 1.14-1.3 s-1 in low concentration of TiO2 nanoparticles about 0.5 wt. %. The pH and surface tension values show an interesting decreasing overall range of PVAc/TiO2 nanoparticles. These results have an important effect on processing and capability production in polymer composites technology, as well as energy conception in polymer and composite technology of PVAc/TiO2 nanoparticles composite.
doi: 10.17756/nwj.2020-080
Citation: Jawad AJ. 2020. Effect of Titanium Dioxide Nanoparticles (TiO2 NPs) on Rheological Characteristics Behavior of Poly Vinyl Acetate (PVAc). NanoWorld J 6(3): 61-65.