Assessment of water uptake in coil coatings by capacitance measurements

被引：66

作者：

Castela, AS ^{[1
]}

Simoes, AM ^{[1
]}

机构：

[1] Univ Tecn Lisboa, Dept Chem Engn, Inst Super Tecn, P-1049001 Lisbon, Portugal

来源：

PROGRESS IN ORGANIC COATINGS | 2003年 / 46卷 / 01期

关键词：

water uptake; organic coatings; electrochemical impedance;

D O I：

10.1016/S0300-9440(02)00190-X

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A model for the estimation of water uptake in polymeric coatings is presented, based upon a linear combination of the individual capacitances of the polymeric phase, the water and the air contained in the coating. Experimental comparison of the model with the Brasher-Kingsbury (BK) equation has revealed an improvement in the agreement with respect to the gravimetry. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：55 / 61

页数：7

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