Conference paper

De-adhesion at the Organic Coating/Metal Interface in Aqueous Media

Henry Leidheiser ; Center for Surface and Coatings Research, Lehigh University, Bethlehem, Pa. 18015, USA

Abstract

De-adhesion, or delamiilation, may occur along six different
planes in the interfacial regions of a metal/organic coating system:
(a) in the metal (anodic undermining), (b) at the metal/interfacial
oxide boundary, (c) within the interfacial oxide, (d) within a pretreatment
layer or conversion coating, (e) at the organic coating/interfacial
oxide boundary, (f) within the polymer coating. The plane
along which delamination occurs is a function of the system and
environmental conditions. Five areas where extensive research is
required are outlined: studies of the interfacial oxide, nature of the
coating/interfacial oxide bond, non-destructive methods for locating
bulk water aggregation at the interface, understanding the effects
of ions on delamination during cathodic treatment, and understanding
the factors which control the generation of a high pH in
a region delaminated by a cathodic process.

Keywords

Hrčak ID:

194572

URI

https://hrcak.srce.hr/194572

Publication date:

5.11.1980.

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