Studies on rheological property of coating for handling container bottom

The purpose of this study was to improve the rheological property of thick anticorrosive coatings. Varied thixotropic agents with different weight percent were added in anticorrosive coating. It proved that thixotropic agent consists of 2 weight percent modified polyamide and 1 weight percent bentonite has the best result. Viscosities of the coating at different rate of shear were tested, and Casson equation between coating viscosity and rate of shear was derived. The results show that the addition of thixotropic agent improves the rheological property of coating for handling container bottom obviously.