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Conference Papers Year : 2021

Hydrophobic and raw glass beads flow behavior under different processing conditions

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Abstract

Controlling the powder flow by the surface properties of the particles as well as understanding their flowability under different processing dynamics are amongst the major challenges of the powder industry. 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 bead and its bulk behavior has been compared with raw glass bead. We characterized flow properties under different processing conditions. Both powders presented similar flow behavior in the free fall measurement, however hydrophobic glass bead showed lower flow behavior under flow with rotating drum. Also, hydrophobic glass bead presented negative and raw glass bead almost zero electrostatic charges.
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Dates and versions

hal-03516441 , version 1 (07-01-2022)

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Shirin Enferad, Salvatore Pillitteri, Geoffroy Lumay, Claire Gaiani, Sebastien Kiesgen de Richter, et al.. Hydrophobic and raw glass beads flow behavior under different processing conditions. Powders and Grains, Jul 2021, Virtual, France. pp.03008, ⟨10.1051/epjconf/202124903008⟩. ⟨hal-03516441⟩
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