Abstract
AbstractMesua ferrea L. seed oil based highly branched polyester modified epoxy resin has been utilized as a binder system for a low volatile organic compound (VOC) containing high solid paint formulation. The highly branched low molecular weight polyester resin acts as the reactive diluent of the epoxy resin which satisfies to reduce VOC emission and produces high solid paint system. The prepared Mesua ferrea L. seed oil based highly branched polyester modified epoxy paint (test paint) was assessed against commercially available epoxy paint (standard paint) for protective coating application. Different physical and performance properties of the paint viz. nonvolatile content, specific gravity, viscosity, drying time, scratch hardness, gloss, impact resistance, and chemical properties such as corrosion resistance, salt spray resistance, UV resistance were measured as per the standard methods. The surface morphology and the thermal stability of the paints were also studied by scanning electron microscope (SEM) and thermogravimetric analysis (TGA). The shear thinning behavior was observed for both the paints as indicated by rheological study. The results indicate that the test paint is comparable with the standard paint. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
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