A Novel Approach to Evaluate Nanoparticle Emission from Nanopowder Coating Materials

Li-Yeh Hsu
Energy and Environment Research Laboratories, Industry Technology Research Institute

Hung Min CHEIN
Energy and Environment Research Laboratories, Industry Technology Research Institute

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     Last modified: April 17, 2006

Abstract
In this study, a novel approach to evaluate nanoparticle emission from nanopowder coating surfaces including wood, polymer, and tile was established. Partcile emission was evaluated in a simulation box and measured with Scanning Mobility Particle Sizer (SMPS) first time. In the simulation box, UV light, fan, and rubber knife were used to simulate the sun light, wind, and human contacting conditions. The measurement results show that TiO2 coated on tile had the highest particle emission (22 #/cm3＠ 55 nm) from nanopowder splitting among three selected nanomaterials. The UV light is shown to increase the releasing of particle below 200 nm from TiO2 nanopowder coating materials. It is suggested that nanoparticle emission evaluation should be performed for nanomaterial products applying nanopowder coating technology.