The surface energy of palygorskite

Helmy, Ahmed K.
de Bussetti, Silvia G.
Ferreiro, Eladio Avelino

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Publication date

February 2007

DOI

10.1016/j.powtec.2006.10.006

Publisher

Elsevier BV

ISSN

0032-5910

Journal

Powder Technology

Citation count (estimate)

Abstract

An average value for the surface energy (γ-S) of palygorskite was determined from experimental data of spreading pressure, the surface tension of water and its contact angle using a formula based on the combination of the Young equation with a general equation of pair interaction. The value found is 226.6 mJ m- 2. Some factors that affect the determination of surface energy via solid-liquid interaction are exposed. The backgrounds of previous formulas for the calculation of the surface energy of palygorskite are also critically examined.Fil: Helmy, Ahmed K.. Universidad Nacional del Sur; ArgentinaFil: de Bussetti, Silvia G.. Universidad Nacional del Sur; ArgentinaFil: Ferreiro, Eladio Avelino. Consejo Nacional de Investigaciones Científicas...

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The surface energy of palygorskite

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The surface energy of palygorskite

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