Surface Properties of Suberin

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• 作者：Cordeiro ; Nereida ; Aurenty ; Patrice ; Belgacem ; Mohamed Naceur ; Gandini ; Alessandro ; Neto ; Carlos Pascoal
• 刊名：Journal of Colloid and Interface Science
• 出版年：1997
• 出版时间：March 15, 1997
• 年：1997
• 卷：187
• 期：2
• 页码：498-508
• 全文大小：211 K

文摘

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.