| abstract |
The invention discloses a quick-drying water-based acrylic-polyurethane-epoxy ester ternary anti-corrosion emulsion. The raw materials comprise the following components in parts by mass: 20-90 parts of water-based acrylic modified epoxy ester, 10 parts of polyurethane prepolymer -80 parts, 0-5 parts of polyurethane chain extender, 0-5 parts of neutralized amine, 0-50 parts of water. The water-based acrylic modified epoxy ester can partially act as an emulsifier when the phase of the polyurethane prepolymer is reversed, which can reduce the acid value of the system while ensuring the stability of the emulsion, thereby increasing the water resistance of the final emulsion product, thereby ensuring anti-corrosion performance. ; After the polyurethane is water-based, polyamine or water chain extension is carried out, and the molecular weight is large, which significantly improves the drying speed of the emulsion product and meets the application requirements of fast drying at room temperature. The invention also discloses a preparation method of the quick-drying water-based acrylic-polyurethane-epoxy ester ternary anti-corrosion emulsion, which has the advantages of simple operation, easy control of the reaction process and low preparation cost. |