Revetements organiques pour la protection anticorrosion des toles revetues
Steel is a material that is being used more and more frequently to construct tertiary buildings, and maintaining its appearance over long periods is of great importance. Damage is mostly caused either by the shaping of the sheet steel (streamlining, folding) or by the building's environment itself. The objective is, therefore, to obtain both suppleness and durability. In order to improve resistance to corrosion in sensitive areas (folds and rims for instance), a more supple paint which does not crack is required. These organic coatings must, therefore, have a vitreous transition temperature and a cross-linkage rate that are lower than those currently used. It has already been established that these two parameters influence such things as the porosity and permeability of the paint film. This research concentrates in particular on the correlation that exists between the physicochemical properties of the paints and the resistance to corrosion of painted sheets. The final aim is to determine an optimum compromise between suppleness and resistance to corrosion. The thermo-mechanical properties are studied by use of scanning differential calorimetry. The protective nature and dielectric properties of the paint are evaluated using electrochemical methods.
Bibliographic Reference: EUR 18781 FR (1998) 75pp.
Availability: Available from OOPEC Sales agents
ISBN: ISBN 92-828-5298-9
Record Number: 199911266 / Last updated on: 1999-08-27
Original language: fr
Available languages: fr