TABLE OF CONTENTS Properties of anticorrosion inhibited films are restricted by tough requirements. Along with their main functional property of protecting against corrosion damage, they should display rather demanding deformation, strength and barrier characteristics, resistance to atmospheric effects and good weld-ability.
The structure and properties of inhibited films may alter within a wide range in response to their composition and production techniques. Their anticorrosion effect depends largely on the mechanism of CI transportation from the bulk film to the article surface and the kinetics of electrochemical processes in the metal-inhibited film-hostile-medium system.
The most commonly used type of inhibited films is produced by joint processing of thermoplastic polymers and highly dispersed CI powders. When the melting points, as well as the sublimation and thermal destruction temperatures, of the CI exceed the viscous flow temperature of the thermoplast, the film acquires the structure of a polymer composite filled with solid inhibitor particles [101]. The particles may partially dissolve in the polymer melt and exert a plasticizing effect on the polymer. Introduction of 1 2% of NDA into PE elevates melt flow by 1.5 1.8 times [10]. Aggregation of solid CI particles may present essential difficulties for their joint processing with polymer melts and result in structural defects or impair the quality of the film as a whole [4].
Homogeneous films with a structure typical of plasticized polymer materials are obtained from thermoplastic melts containing slight amounts of thermodynamically compatible liquid...
