Triboelectric charging of polymer powders in fluidization and transport processes

Physical Characterization of Component Particles Included in Dry Powder Inhalers. II. Dynamic Characteristics

“…38 Triboelectrification [39][40][41][42] and triboelectric charging of pharmaceutical powders as a function of surface properties and relative humidity 34,[43][44][45][46] have been investigated. Furthermore, triboelectrification of lactose [47][48][49][50] and glucose 51 is known to occur during the process of spray-drying 52 lactose and mannitol, in miniaturized fluidized bed, 53,54 in powder coating applications 55,56 and during microscale granulation. 57 Additionally, electrostatic charging in lactose monohydrate during melt agglomeration and effects of surfactants on charging 58,59 have been demonstrated.…”

Twenty-first century research needs in electrostatic processes applied to industry and medicine

“…The charge separator [Mountain 2001, Srirama 2003 (Fig 6) is an instrument that separates the particles based on their charge polarity. It consists of two V-shaped conductive plates with a variable voltage applied in between.…”

Investigation of Electrostatic Behavior of a Lactose Carrier for Dry Powder Inhalers

“…Environmental factors with significant influences in static electrification are relative humidity and temperature. Induction of electrostatic charges on aerosol particles upon aerosolization is well recognized (5,32). While air velocity was a commonly examined variable for particle triboelectrification in cyclone chargers (4,33) and fluidized beds (32,34), reported studies on inhalation aerosol electrostatics usually employed a single air flow rate, typically 30, 45 or 60 L/min to achieve powder aerosolization (5,20,22,(25)(26)(27)(28)35).…”