The determination of coating performance with impedance measurements-I. Coating polymer properties
作者： E.P.M van Westing , G.M Ferrari , J.H.W de Wit
DOI: 10.1016/0010-938X(93)90245-C
关键词: Dielectric spectroscopy 、 Epoxy 、 Coating 、 Curing (chemistry) 、 Composite material 、 Polymer 、 Equivalent circuit 、 Constant phase element 、 Materials science 、 Corrosion
摘要: Abstract Modern coatings with new binders and pigmentation require methods to optimize the formulation respect protection of metal substrate against corrosion. The normally used for accelerated weathering do not give information about mechanism failure coatings. Mechanistic is necessary a fast more specific development various applications. Electrochemical impedance spectroscopy (EIS) can provide information. This article part one in series. coating polymer properties performance are discussed. Moreover experimental results validated errors. Models from literature have also been included discussion. For study curing mechanical epoxy constant phase element (CPE) was found be valuable component equivalent circuit EIS. values CPE parameters Y 11 n related network polymer.
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