Method for preparing polyacrylic ester/nanoSiO2 coating printing adhesive by using Pickering emulsion polymerization method

The invention relates to a method for preparing a polyacrylic ester/nanoSiO2 coating printing adhesive by using a Pickering emulsion polymerization method. During preparation of a polyacrylic acid emulsion, the problems of poor washing fastness and poor wet rubbing fastness are caused by adding a surfactant. The method comprises the following steps: mixing and stirring nanoSiO2 sol with water, and dropwise adding methyl methacrylate, glycidyl methacrylate, butyl acrylate and acrylic acid; and raising the temperature, adding an ammonium persulfate solution, preserving heat for reacting, naturally cooling a reaction product, filtering the cooled reaction product, and discharging the filtered reaction product. The polyacrylic ester/nanoSiO2 coating printing adhesive is prepared by taking the nanoSiO2 sol, an acrylic acid monomer and the glycidyl methacrylate as raw materials through Pickering emulsion polymerization. The method has the advantages of simple process, avoidance of the use of the surfactant and envi