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Surface Properties of Suberin

Authors
Journal
Journal of Colloid and Interface Science
0021-9797
Publisher
Elsevier
Publication Date
Volume
187
Issue
2
Identifiers
DOI: 10.1006/jcis.1996.4735
Keywords
  • Suberin
  • Surface Energy
  • Contact Angle
  • Wilhelmy Plate
  • Maximum Bubble Pressure
  • Inverse Gas Chromatography

Abstract

Abstract The surface energy of suberin was determined by four different methods, namely, (i) contact angle measurements, (ii) Wilhelmy plate measurements, (iii) maximum bubble pressure, and (iv) inverse gas chromatography (IGC). The first three methods gave a γ subvalue in the range 40–50 mN m −1at room temperature. The major component of this value reflects the dispersive contribution. The IGC measurements showed a higher dispersive term, which is common with this method of characterization. The surface acid (A)/base (B) properties were also evaluated, and the results indicated that suberin has an acidic character.

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