Polypropylene （PP）/titanium dioxide （TiO2） nano-composites were prepared by melt compounding with a twin screw extruder. Nanoparticles were modified prior to melt mixing with maleic anhydride grafted styreneethylene-butylene-styrene （SEBS-g-MA） and silane. The composites were injection molded and mechanical tests were applied to obtain tensile strength, elastic modulus and impact strength. Antibacterial efficiency test was applied on the injection molded composite plaques by viable cell counting technique. The results showed that the composites including SEBS-g-MA and silane coated TiO2 gave better mechanical properties than the composites without SEBS-g-MA. Antibacterial efficiency of the composites varied according to the dispersion and the concentration of the particles and it was observed that composites at low content of TiO2 showed higher antibacterial property due to the better photocatalytic activity of the particles during UV exposure.
参考文献
| [1] | S.C. Tjong;S.P. Bao .Fracture toughness of high density polyethylene/SEBS-g-MA/montmorillonite nanocomposites[J].Composites science and technology,2007(2):314-323. |
| [2] | S.P. Bao;S.C. Tjong .Impact essential work of fracture of polypropylene/montmorillonite nanocomposites toughened with SEBS-g-MA elastomer[J].Composites, Part A. Applied science and manufacturing,2007(1):378-387. |
| [3] | L Caballero;K.A. Whitehead;N.S. Allen .Inactivation of Escherichia coli on immobilized TiO2 using fluorescent light[J].Journal of Photochemistry and Photobiology, A. Chemistry,2009(2/3):92-98. |
| [4] | J. Sawai;T. Yoshikawa .Quantitative evaluation of antifungal activity of metallic oxide powders (MgO, CaO and ZnO) by an indirect conductimetric assay[J].Journal of applied microbiology,2004(4):803-809. |
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