A1 Refereed original research article in a scientific journal
Influence of relative humidity on the electrostatic charging of lactose powder mixed with salbutamol sulphate
Authors: Janne Peltonen, Outi Alanen, Ermei Mäkilä, Matti Murtomaa, Jarno Salonen
Publisher: ELSEVIER SCIENCE BV
Publication year: 2017
Journal: Journal of Electrostatics
Volume: 88
Issue: SI
First page : 201
Last page: 206
Number of pages: 6
ISSN: 0304-3886
eISSN: 1873-5738
DOI: https://doi.org/10.1016/j.elstat.2017.01.009
Web address : http://www.sciencedirect.com/science/article/pii/S0304388616301905
In this study,
electrostatic charging of lactose and its mixtures with salbutamol sulphate
(SS) were studied as a function of relative humidity (RH). Powder adhesion onto
a steel pipe surface was also investigated. The powders were charged by sliding
in a steel pipe. Increase in RH decreased the charging of lactose and mixtures,
but the effect on SS was not evident. Furthermore, the charge of the mixtures
reversed from negative to positive as RH was increased and remained positive as
the samples were again dried. Humidification also changed the adhesion behavior
of the mixtures onto the pipe surface.
