Investigation of Morphological and mechanical properties of an epoxy coating containing a hybrid dye-caly nanopigment (DCNP)

Blue hybrid dye-clay nano-pigments (DCNPs) were synthesized using cationic exchange reaction. In fact, methylene blue (MB) as a cationic dye was replaced by some of cationic modifier of organoclay (i.e. Cloisite 15A, C15A). The obtained DCNPs were dispersed in an epoxy resin. The morphological properties of DCNP were evaluated and the mechanical performances of coating colored with DCNPs was compared with two other epoxy coatings which were prepared using two common organic and inorganic pigments (namely, C.I. pigment blue 15:2 and C.I. pigment blue 28). The samples were characterized using different techniques including XRD, TEM, DMTA. Results showed that the extent of intercalation/exfoliation of DCNPs in epoxy resin was better than that of C15A. It was found that the mechanical properties of epoxy/DCNP were superior comparing to the other coatings.

کلیدواژه ها:

Nano-clay ، Nanopigment ، Methylene blue ، Epoxy coating ، Morphological properties ، Mechanical properties