Preparation, Characterization and Properties of CaZn2(PO4)2-BaB2O4 Hybrid Nanopowders as Ecological Anticorrosive Pigment
CaZn2(PO4)2 and β-BaB2O4 nanopowders were firstly synthesized by an ultrasonic-aid chemical precipitation method. Then BaB2O4 was mixed with CaZn2(PO4)2 to prepare CaZn2(PO4)2-BaB2O4 nanopowder ecological anticorrosive pigment. The TG-DTA, XRD and TEM measurements were used to characterize the structure and morphology of products. The activation of pigment has been improved by two ways: one is the synthesis of well-dispersed nanometer-sized powder with narrow distribution; the other way is to mix the two kinds of pigment together to generate a hybrid ecological pigment. Finally, the anticorrosive experiments of the product were investigated in aqueous alkyd paints. The result of anticorrosive performance indicates that the as-obtained hybrid pigments exhibit more excellent properties than commercial zinc phosphate and ZPA from Germany.
Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He
S. W. Ding et al., "Preparation, Characterization and Properties of CaZn2(PO4)2-BaB2O4 Hybrid Nanopowders as Ecological Anticorrosive Pigment", Advanced Materials Research, Vols. 233-235, pp. 277-280, 2011