A1 Refereed original research article in a scientific journal
Effect of surface coverage of a glass pipe by small particles on the triboelectrification of glucose powder
Authors: Murtomaa M, Ojanen K, Laine E
Publisher: ELSEVIER SCIENCE BV
Publication year: 2002
Journal:: Journal of Electrostatics
Journal name in source: JOURNAL OF ELECTROSTATICS
Journal acronym: J ELECTROSTAT
Article number: PII S0304-3886(01)00158-9
Volume: 54
Issue: 3-4
First page : 311
Last page: 320
Number of pages: 10
ISSN: 0304-3886
DOI: https://doi.org/10.1016/S0304-3886(01)00158-9
Abstract
This paper presents the results of an experimental study on the triboelectrification of glucose powder in a glass pipe, and the role of smaller particles of different material mixed with a main phase. Mixtures of different concentrations were charged by sliding them down into the Faraday cup via a glass pipe. The influence of sticking to the inner surface of the pipe was examined with a microscope equipped with camera and an image analysis program. Smaller particles at the pipe surface partly change the glucose-glass contacts to the glucose-adhered powder contacts and this has a significant effect on the sign and the amount of transferred charge. The relative coverage of the glass pipe by small particles can be used as a measure of the charging ability of an additive, and can also give information regarding the sufficient amount of additive which would lead to neutral charge. (C) 2002 Elsevier Science B.V. All rights reserved.
This paper presents the results of an experimental study on the triboelectrification of glucose powder in a glass pipe, and the role of smaller particles of different material mixed with a main phase. Mixtures of different concentrations were charged by sliding them down into the Faraday cup via a glass pipe. The influence of sticking to the inner surface of the pipe was examined with a microscope equipped with camera and an image analysis program. Smaller particles at the pipe surface partly change the glucose-glass contacts to the glucose-adhered powder contacts and this has a significant effect on the sign and the amount of transferred charge. The relative coverage of the glass pipe by small particles can be used as a measure of the charging ability of an additive, and can also give information regarding the sufficient amount of additive which would lead to neutral charge. (C) 2002 Elsevier Science B.V. All rights reserved.
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