Acrylate emulsion as well as preparation method and application thereof

The invention discloses an acrylate emulsion as well as a preparation method and application thereof. The emulsion is prepared from the following raw material components in percentage by mass through emulsion polymerization: a) 15 to 70 weight percent of butyl acrylate, b) 1.3 to 10 weight percent of olefinic unsaturated monomer containing acetoacetate functional group, c) 0.5 to 5 weight percent of unsaturated hydrophilic monomer, d) 0.2 to 5 percent of reactive silane coupling agent, e) 10 to 40 percent of styrene, f) 1 to 20 percent of maleic anhydride and g) 10 to 40 percent of styrene. 1-40% of other olefinic unsaturated monomers, and h) 10-20% of amine post-crosslinking monomers. The emulsion disclosed by the invention is mainly applied to a building interior wall coating, the emulsion has relatively low MFFT without adding a coalescing agent, and the coating prepared from the emulsion has excellent scrubbing resistance and freeze-thaw stability, low VOC content and good environmental protection perform