Fabrication and Characterization of SiO_2 Particles Generated by Spray Method for Standards Aerosol
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概要
- 論文の詳細を見る
This paper describes the investigation of the generation of spherical silica particles, which could potentially be used as alternative calibration aerosol for substituting DOP (dioctylphthalate) particles. Silica particles were generated by a spray drying method using a nanometer-sized colloidal silica suspension as the starting material. The generated silica particles have a spherical morphology, are nearly monodispersed and their size can be controlled at submicron order. The smoothness of the particle surface is greatly affected by the size of the colloidal silica particles used. Silica aerosol particles were also generated by the spray pyrolysis of an aqueous solution of tetraethylorthosilicate (TEOS), in order to compare their properties with those of silica particles obtained by spray drying method. The electrical mobility equivalent diameter of silica particles generated by spray drying method is in good agreement with the diameter determined by SEM observation. The light scattering characteristics of the silica aerosol particles were also measured using a laser particle counter and compared with a polystyrene latex (PSL) aerosol. By increasing the drying temperature of the silica sol droplets to 1200°C, the change of scattered light intensity with particle diameter shows a tendency similar to that of spherical PSL particles. Consequently, the spherical submicron silica particles generated by the present spray drying method appear to be applicable to the test of air filters.
- 社団法人 化学工学会の論文
著者
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OKUYAMA KIKUO
Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University
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LENGGORO I.
Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University
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ISKANDAR FERRY
Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University
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KIM Tae
School of Architectural, Civil and Environment Engineering, Kumoh National University of Technology
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NAKAO Naoto
Department of Chemical Engineering, Hiroshima University
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SHIMADA Manabu
Department of Chemical Engineering, Hiroshima University
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島田 学
広島大学大学院工学研究科物質化学システム専攻化学工学講座
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Iskandar F
Hiroshima Univ. Hiroshima Jpn
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Iskandar Ferry
Department Of Chemical Engineering Graduate School Of Engineering Hiroshima University
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Kim Tae
School Of Civil And Environmental Engineering Kumoh National Institute Of Technology
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Lenggoro I.wuled
Department Of Chemical Engineering Hiroshima University
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Lenggoro I.
広島大学大学院工学研究科
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Nakao Naoto
Department Of Chemical Engineering Hiroshima University
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Okuyama K
Hiroshima Univ. Higashi‐hiroshima Jpn
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Shimada Manabu
Department Of Chemical Engineering Faculty Of Engineering Hiroshima University
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Okuyama K
Hiroshima Univ. Hiroshima Jpn
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Okuyama Kikuo
Department Of Chemical Engineering Faculty Of Engineering Hiroshima University
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Kim Tae
School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, Gyeonggi 440-746, Korea
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