Influence of interface on the formation process of polymer coatings on metal

Abstract

The purpose of this work is in development of the model that allows to investigate the conformations of macromolecules near the interface \dielectric-metal" depending on the conditions of formation of the polymer coating. In the modified model of \sticky tape", one part of macromolecule is anchored to the metal surface while the other can be elongated due to effective mean (molecular) field of dipolar type formed by free ends of other chains. The dynamic Monte-Carlo method for Langmuir's model is used for calculation of adhesion force taking into account the interaction energy of monomers with the metal surface. It is shown that conformation of polymer chain is defined by temperature conditions of its formation. The obtained results are confirmed by the data of production tests on polymer coatings in JSC \Severstal".

CORRELATION between MORPHOLOGY OF POLYMER COATING’S with TEXTURED SURFACE OF METAL AND ITS CORROSION RESISTANCE

“…Therefore, the main parameter of the quality of polymer-coated rolled metal is its thickness. However, the results of simulation and the data of production tests [5] showed that there are modes of coating formation, which give an increase in the thickness of the polymer coating due to a decrease in the density. For a more detailed study of the ions movement inside the polymer film, a PVDF coating was considered, the macromolecules of which have dipole moment directed perpendicular to the chain backbone and associated with electronegative fluorine and electropositive hydrogen in the composition of side groups (Figure 1).…”

Studying the Self-Organization of Macromolecules on the Surface of Textured Polymer Coating of Metal Sheet

“…The main indicator of the coating quality is the thickness of the polymer film. However, the production test data and the simulation results [3] show that there are manufacturing regimes which increase the polymer coating thickness for a given depth of the raw layer. It is economically profitable for a manufacturer to reduce the raw layer depth of polymer material and decrease artificially its density using special temperature conditions for the coating formation.…”