Article (Scientific journals)
Powder flow behavior governed by the surface properties of glass beads
Enferad, S.; Pillitteri, Salvatore; Lumay, Geoffroy et al.
2021In Powder Technology, 388, p. 425-433
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Keywords :
Flowability; Glass bead; Humid control; Hydrophobic formulation; Agglomeration; Electrostatics; Glass; Hydrophobicity; Powders; Shear deformation; Surface properties; Surface treatment; Electrostatic charges; Environmental conditions; Hydrophobic glass; Powder flow behavior; Powders industries; Property; Granular materials
Abstract :
[en] Powder rheology and its sensitivity to surrounding environmental condition by controlling the surface properties of the particles is one of the major challenges of the powder industries. Indeed, handling large quantities needs powders with good flowability, adequate compressibility and few electrostatic charges. We have performed a chemical treatment in order to obtain hydrophobic glass beads and its bulk behavior has been compared with raw glass beads depending on the humidity. We characterized flow properties under different processing equipments. We observed that by performing hydrophobic surface treatment sensitivity of glass beads reduced to the humidity. Furthermore, the influence of the electrostatic charges was an undeniable factor in increasing the viscosity of hydrophobic glass beads and consequently lowering its flowability in front of raw glass beads; at low shear rate. At high shear rate, the powders presented similar behaviors. © 2021 Elsevier B.V.
Disciplines :
Physics
Author, co-author :
Enferad, S.;  Université de Lorraine, Laboratoire d'Energétique et de Mécanique Théorique et Appliqué (LEMTA), CNRS, UMR 7563, Vandoeuvre-lés-Nancy, F-54500, France, Université de Lorraine, Laboratoire d'Ingénierie des Biomolécules (LIBio), 2 avenue de la Forêt de Haye, TSA 40602, Vandoeuvre-lès-Nancy, 54518, France
Pillitteri, Salvatore ;  Université de Liège - ULiège > Département de physique > Physique statistique
Lumay, Geoffroy ;  Université de Liège - ULiège > Département de physique > Physique expér. de la matière molle et des syst. complexes
Gaiani, C.;  Université de Lorraine, Laboratoire d'Ingénierie des Biomolécules (LIBio), 2 avenue de la Forêt de Haye, TSA 40602, Vandoeuvre-lès-Nancy, 54518, France
De Richter, S. K.;  Université de Lorraine, Laboratoire d'Energétique et de Mécanique Théorique et Appliqué (LEMTA), CNRS, UMR 7563, Vandoeuvre-lés-Nancy, F-54500, France
Marck, M.;  GRASP, Institute of Physics B5a, University of Liège, Liège, B4000, Belgium
Umbetov, S.;  Université de Lorraine, Laboratoire d'Energétique et de Mécanique Théorique et Appliqué (LEMTA), CNRS, UMR 7563, Vandoeuvre-lés-Nancy, F-54500, France
Vandewalle, Nicolas  ;  Université de Liège - ULiège > Département de physique > Physique statistique
Jenny, M.;  Université de Lorraine, Laboratoire d'Energétique et de Mécanique Théorique et Appliqué (LEMTA), CNRS, UMR 7563, Vandoeuvre-lés-Nancy, F-54500, France
Language :
English
Title :
Powder flow behavior governed by the surface properties of glass beads
Publication date :
2021
Journal title :
Powder Technology
ISSN :
0032-5910
eISSN :
1873-328X
Publisher :
Elsevier B.V.
Volume :
388
Pages :
425-433
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 06 July 2021

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