Photocatalytic of titanium dioxide hybrid polyurethane by miniemulsion polymerization

Abstract

Abstract Polyurethane nanoparticles were synthesized by using condensation miniemulsion polymerization. The miniemulsion technique was employed to produce nanoparticle in range 50 to 500 nm in diameter. 1,12-Dodecanediol and isophoronediisocyanate were polymerized in water base in the present of titanium dioxide (TiO2) from 1wt%-10wt%. The encapsulated-TiO2/Pu hybrids nanoparticles were obtained. The mechanical properties, morphology, crystal structure and photocatalytic activity of TiO2/Pu hybrids were investigated. The diameter of the hybrid particles were measured using dynamic light scattering. The results show that the hydrodynamic diameter of TiO2/Pu hybrids were in range 164nm-219nm. The morphology of TiO2/Pu hybrids were observed byscanning electron microscope. The SEM micrograph presented the well-defined structure. The crystal structures were analyzed by XRD. The photoactivity of TiO2/Pu hybrids-coated on nonwoven fabric presented the colorless of methylene blue solution.