Kunlanan Kiatkittipong

Preparation and Characterization of the Na2Ti3O7: ABS/Na2Ti3O7 Composites

Titanate Ribbon (Na2Ti3O7) used in ABS plastic was synthesized to study the mechanical properties and to conduct test on the E-coli bacteria inhibition performance. The polymer blends of ABS/Na2Ti3O7 by Na2Ti3O7, was synthesized through alkaline hydrothermal reaction with 0.5 grams of titanium dioxide as a precursor with 20 ml. of sodium hydroxide (NaOH) at the concentration of 10 molar under the alkalinity at 200 ° c for 24 hours. The study on the microstructure by scanning electron microscope revealed that the Layered structure was shaped as a complete ribbon. The mechanical testing activities on the E-coli bacteria inhibition polymer mixed ABS/Na2Ti3O7; it was found that the mechanical properties for ABS/Na2Ti3O7, The results showed that tensile modulus and tensile strength of blending Na2Ti3O7 at 0.5 %wt was the highest. The result showed that E.coli could reduce up to 66.01%.

Antibacterial and Mechanical Properties of the TiO2/ABS Composites

The aim of this present work is to enhance photoantibacterial performance on a surface of Acrylonitrile-Butadiene-Styrene (ABS) by mixing titanium dioxide (TiO2). The influences of different ratios for TiO2 under UV light irradiation were investigated according to JIS Z 2801: 2010 standard. 0.5%, 1% and 2% TiO2/ABS were formed by melting process with internal mixer and compression molding process. E.coli were chosen as a model of bacteria. The best photoantibacterial activity was provided by 0.5% TiO2/ABS. The result showed that E.coli could reduce up to 46.95%. However, a higher amount of TiO2 (i.e., 1% and 2% TiO2/ABS) obstructed the reaction, and E.coli was reduced to 42.6% and 36.08%, respectively. This was due to its aggregation observed from SEM image. For mechanical properties for TiO2/ABS, The results showed that tensile modulus and tensile strength of blending TiO2 at 0.5 %wt was the highest but the tensile was decreased when increasing TiO2 in polymer blended.