SKP as a tool to study the physicochemical interaction at buried metal–coating interfaces
SKP as a tool to study the physicochemical interaction at buried metal–coating interfaces
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SKP 作为研究埋藏金属涂层界面物理化学相互作用的工具
DOI：
10.1002/sia.3512
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发表时间：
2010
影响因子：
1.7
通讯作者：
H. Terryn
中科院分区：
文献类型：
--
作者：
J. Wielant;R. Posner;R. Hausbrand;G. Grundmeier;H. Terryn
扫描开尔文探针（SKP）被用来作为一种工具，以接收有关涂层和氧化物表面之间的界面相互作用强度的信息。测量了在不同处理的钢基材上应用两种聚合物膜（聚氨酯和环氧酰胺）引起的电位位移，作为氧化物表面的物理化学条件（羟基分数和表面能）的函数。结果表明，在强界面酸碱相互作用的情况下，伏特电位降与涂层的附着强度之间存在直接相关性。这一现象表明，氧化物涂层酸碱相互作用形成的界面偶极子反映在SKP电位偏移中，即使被厚涂层覆盖，也可以检测到这些偶极子。版权所有© 2010约翰威利父子有限公司.
The scanning Kelvin probe (SKP) was used as a tool to receive information about the interfacial interaction strength between coatings and oxide surfaces. Potential shifts induced by the application of two polymer films (polyurethane and epoxy‐amide) on differently treated steel substrates were measured as a function of the physicochemical condition of the oxide surface (hydroxyl fraction and surface energy). The results showed that, in the case of strong interfacial acid‐base interactions, a direct correlation exists between the Volta potential drop and the adhesion strength of the coating. This phenomenon indicated that the interface dipoles formed by oxide‐coating acid‐base interactions were reflected in the SKP potential shifts and that these dipoles could be detected, even when they were covered by a thick coating. Copyright © 2010 John Wiley & Sons, Ltd.