Polypropylene/TiO₂ Nanocomposites: Study on Mechanical and Structural Properties

Effect of rutile titania dioxide nanoparticles on the mechanical property, thermal stability, weathering resistance and antibacterial property of styrene acrylic polyurethane coating

“…For improvement of the mechanical properties, there are several studies on incorporating nanoparticles, especially TiO 2 nanoparticles, into polymeric materials [14][15][16][17][18][19][20][21]. TiO 2 nanoparticles have been found to improve the mechanical properties of the polar polymer (e.g.…”

“…polyurethane [18]), more effective than that of the non-polar polymer (e.g. polypropylene, polyethylene [20,21]). It could be explained by the presence of OH groups on the surface, TiO 2 nanoparticles had a superior interaction with the polar polymer, compared with non-polar polymer.…”

“…For outdoor exposure, since TiO 2 nanoparticles did not decompose and did not migrate in coating during outdoor weathering, it might offer the long lasting UV protection for coating. It was recognized that TiO 2 nanoparticles with a higher specific surface area not only serve as better nanofillers for the polymer matrix, but also more actively participate in the protection against UV radiations, compared to traditional TiO 2 microparticles [14][15][16][17][18][19][20][21][22][23][24]. On the other hand, as a photo-catalysts, the incorporation of TiO 2 nanoparticles into the organic coatings could exhibit the antibacterial [25] or self-cleaning [26] properties.…”