Antirust pigment for cathode electrophoretic paint and slurry preparation method thereof

• Main Authors: CHEN XINGYUN, PENG SHUSEN, FENG YALIN, TAO YEYIN
• Format: Patent
• Language: Chinese; English
• Published: 11.09.2020
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention discloses an antirust pigment for cathode electrophoretic paint and a slurry preparation method of the antirust pigment, the antirust pigment is composed of phosphonic acid anions and rare earth cations, and the phosphonic acid anions are one or a mixture of hexamethylenediamine tetramethylene phosphonic acid radicals, diethylenetriamine pentamethylene phosphonic acid radicals and ethylenediamine tetramethylene phosphonic acid radicals; the rare earth cations are one or a mixture of Ce3+ and La3+. The antirust pigment has proper solubility at 25 DEG C, has a good antirust effect,and does not destroy the stability of the cathode electrophoretic paint emulsion. The invention also discloses a preparation method of the antirust pigment slurry. The obtained antirust pigment slurry can be effectively co-deposited with cathode electrophoretic paint. 本发明公开了一种阴极电泳涂料用防锈颜料及其浆料制备方法，所述的防锈颜料由膦酸阴离子和稀土阳离子构成，所述的膦酸阴离子为己二胺四甲叉膦酸根、二乙烯三胺五甲叉膦酸根或乙二胺四亚甲基膦酸根中的一种或其混合物；所述的稀土阳离子为Ce，La中的一种或其混合物。该防锈颜料在25℃下，溶解度适宜，具有良好的防锈效果且不会破