標題: Dustiness test of nanopowders using a standard rotating drum with a modified sampling train
作者: Tsai, Chuen-Jinn
Wu, Chien-Hsien
Leu, Ming-Long
Chen, Sheng-Chieh
Huang, Cheng-Yu
Tsai, Perng-Jy
Ko, Fu-Hsiang
環境工程研究所
材料科學與工程學系奈米科技碩博班
Institute of Environmental Engineering
Graduate Program of Nanotechnology , Department of Materials Science and Engineering
關鍵字: Nanoparticle;Dustiness;Aerosol sampling;Aerosol instrument;Nanotechnology;Occupational health;EHS
公開日期: 1-Jan-2009
摘要: The standard rotating drum tester was used to determine the dustiness of two nanopowders, nano-TiO(2) and fine ZnO, in standard 1-min tests. Then, the sampling train was modified to determine the number and mass distributions of the generated particles in the respirable size range using a Scanning Mobility Particle Sizer (SMPS), an Aerodynamic Particle Sizer (APS) and a Multi-orifice Uniform Deposit Impactor (MOUDI) in the 30-min tests. It was found that very few particles below 100 nm were generated and the released rate of particles decreased with increasing rotation time for both nanopowders in the 30-min tests. Due to the fluffy structure of the released TiO(2) agglomerated particles, the mass distributions measured by the MOUDI showed large differences with those determined by the APS assuming the apparent bulk densities of the powders. The differences were small for the ZnO agglomerates, which were more compact than the TiO(2) agglomerates.
URI: http://dx.doi.org/10.1007/s11051-008-9453-5
http://hdl.handle.net/11536/7920
ISSN: 1388-0764
DOI: 10.1007/s11051-008-9453-5
期刊: JOURNAL OF NANOPARTICLE RESEARCH
Volume: 11
Issue: 1
起始頁: 121
結束頁: 131
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