REVISTA DE MATERIALE PLASTICE, volume 2017, April | Download PDF | Download Adobe Reader
TRAIAN RUS, IOSIF LINGVAY, ALINA RUXANA CARAMITU, ADRIANA MARIANA BORS, DANUT IONEL VAIREANU COMPARATIVE STUDIES ON THE UV RADIATIONS RESISTANCE OF SOME PAINTING MATERIALS UV radiation has a long-term effect on the durability of anti-corrosive coatings applied by painting, generating conditions for accelerated localized corrosion of the protected metallic structure with adverse effects on operational safety. This paper presents a comparative study of the behavior of some painting materials ageing by exposure to UV radiation relevant by the investigation of dielectric behavior using dielectric spectroscopy in conjunction with the thermal stability investigated by coupled techniques of thermal analysis. From a practical point of view, the UV radiation behavior of two materials based on epoxy resins and polyurethane resin used as paints for protective decorative coatings was studied. The results of experimental investigations have shown that in the aging process of the studied painting materials there is a direct correlation between the evolution of the maximum temperature characteristic of the first thermooxidation process and the evolution of the dielectric performances (dielectric loss – tgd).
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SYSCOM 18 SRL
SOCIETATEA DE CHIMIE DIN ROMANIA
SC BIBLIOTECA CHIMIEI SA