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Antibacterial and Mechanical Properties of the TiO2/ABS Composites

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Abstract:

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.

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Periodical:

Key Engineering Materials (Volume 737)

Pages:

209-213

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.737.209

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Online since:

June 2017

Authors:

Rittichai Sangkatip, Wipoo Sriseubsai*, Kunlanan Kiatkittipong

Keywords:

Acrylonitrile-Butadiene-Styrene (ABS), Antibacterial, Mechanical Properties, Titanium Dioxide (TiO2)

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