High-throwing-power toughened cathode electrophoretic resin and preparation method thereof, and electrophoretic emulsion and preparation method thereof

The invention provides a high-throwing-power toughened cathode electrophoretic resin and a preparation method thereof, and an electrophoretic emulsion and a preparation method thereof. The preparationmethod of the high-throwing-power toughened cathode electrophoretic resin comprises the steps: mixing epoxy resin E-51, bisphenol A, diethanol amine and methylisobutylketone, heating to react, and adding an epoxy diluent 207 to react; and then adding methyl isobutyl ketone, controlling the temperature to be reduced, adding diethanol amine, raising the temperature to react, finally supplementing methyl isobutyl ketone, and uniformly mixing and stirring to obtain the high-throwing-power toughened cathode electrophoretic resin. The throwing power is improved by improving the solvent content to increase the molecular weight of the epoxy resin/reduce the MEQ value; a cathode electrophoresis emulsion and a bath solution are prepared by taking the high-throwing-power toughened cathode electrophoretic resin as a raw mate