Aldehyde ketone resin modified acrylic emulsion and preparation method thereof

The invention discloses an aldehyde ketone resin modified acrylic emulsion and a preparation method thereof, and relates to the field of exterior wall latex paint. Wherein the aldehyde ketone resin modified acrylic emulsion is prepared from the following raw materials in parts by weight: 100 parts of deionized water, 1.5 to 3 parts of an emulsifier, 1 to 3 parts of an initiator, 45 to 55 parts of methyl methacrylate, 25 to 30 parts of butyl acrylate, 1 to 3 parts of acrylic acid, 0.5 to 2 parts of a cross-linking monomer, 0.2 to 1 part of a silane coupling agent and 4 to 20 parts of aldehyde ketone resin; the emulsifier comprises an anionic emulsifier and a nonionic emulsifier. The aldehyde ketone resin modified acrylic emulsion has good weather resistance, heat resistance, gloss, hardness, water resistance, pigment wettability and adhesive force, and can be applied to a high-temperature and high-humidity environment. 本发明公开了一种醛酮树脂改性丙烯酸乳液及其制备方法，涉及外墙乳胶漆领域。其中，按重量份数计，所述醛酮树脂改性丙烯酸乳液的制备原料包括：去离子水100份、乳化剂1.5～3份、引发剂1～3