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《Research of Environmental Sciences》 2008-04
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Test of Sediment and Adhesion Behavior of Dust Particle on Glass Surface in Room at Various Conditions

LI Ming,WU Chao,LI Zi-junNational Research Center of Safety Science and Technology for Metal Mines,School of Resources and Safety Engineering,Central South University,Changsha 410083,China  
In order to investigate the sediment and adhesion behavior on glass surface in room,common glass slides which have been treated by several chemical agents were placed in different angles with horizontal plane in the laboratory.After passing different time periods(1,3,10 and 30 d),the sediment and adhesion characteristics of dust particle on the glass slides with pre-treating by cleaning agent and TiO_2 or without pre-treating at various placing angles(0°,45° and 90°) were investigated.The results show that the sediment mass of dust particle on the glass slides treated by TiO_2 is proportional with the sedimentary time and inverse proportional with the angle of slides.For the slides treated with cleaning agent and no treating,the above relationship is un-obvious.For the slide treated by cleaning agent,the number concentration of particle adhered on it and the passing ratio of light through the slide are rather small.This phenomenon proves that pre-treating technology by cleaning agent can prevent dust adhesion on the glass.Generally,the particle size adhered on the slide is almost kept un-variable though the sediment time and the placing angle are different.The diameter of particle is concentrated in 15 to 25 μm.
【Fund】: 国家自然科学基金项目(50474050);; 教育部博士点专项基金项目(20040533011);; 中南大学研究生教育创新工程资助项目
【CateGory Index】: X513
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