Characterization of the cork surface by inverse gas chromatography

Cordeiro, Nereida; Neto, Carlos Pascoal; Gandini, Alessandro; Belgacem, Mohamed Naceur

http://hdl.handle.net/10400.13/3377

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Authors

Cordeiro, Nereida

Neto, Carlos Pascoal

Gandini, Alessandro

Belgacem, Mohamed Naceur

Abstract(s)

Inverse gas chromatography (IGC) at infinite dilution has been used to study the surface properties of cork from Quercus suber. The dispersive component of its surface energy was determined at different temperatures using n -alkanes as probes, and a γDS value of 38 ± 1 mJ · m-2 at 40°C was obtained. The surface acid (A)/base (B) properties were also evaluated by using polar probes and the results indicate that cork has an amphoteric character, with a KA /KB = 1.1. The advantages of IGC, compared with the technique of contact angle measurements in the characterization of the cork surface, are discussed.

Keywords

Cork surface Characterization of the cork surface Inverse gas chromatography . Faculdade de Ciências Exatas e da Engenharia

URI

http://hdl.handle.net/10400.13/3377

Citation

Cordeiro, N., Neto, C. P., Gandini, A., & Belgacem, M. N. (1995). Characterization of the cork surface by inverse gas chromatography. Journal of colloid and interface science, 174(1), 246-249.