Films Incorporating Corrosion Inhibitors

A film represents a fine continuous material layer up to 250 pm thick [1,2] characterized by a large surface-to-volume ratio. In contrast to coatings, films do not adhere to other solid substrates. 

Film formation is a specific property of polymers that distinguishes them from low-molecular matter. This is a considerable length and asymmetry of macromolecules capable of forming a strong oriented permolecular structure during stretching of polymer bodies that lies at the base of this property [2]. So far, polymers are considered to utterly suit to a raw material for production of the films. 

A highly developed and reactive surface is another distinctive feature of polymer film materials. This feature only furnishes large potential in modification of films using various functional components, including Cl and numerous available technological procedures [3-6]. Corrosion inhibitors impregnated into a film may be found in different aggregate states. Despite considerable differences in physical and chemical parameters, films modified by Cl are able in most cases to retain their critical characteristics. 

World production of polymer film materials of anticorrosion purposes has been characterized in recent decades by a stable tendency to growth. To date engineering has adopted a vast range of polymer anticorrosion films in various technical domains. 

The formulation and production processes as well as equipment for manufacture of inhibited films are the subjects of patent protection since they are, as a rule, know-hows of their manufacturers. The first patents for packaging films containing VCI can be traced back to the early 1950s. Beginning from 

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