Solvent-resistant expandable polymer particle and preparation method thereof

The invention provides a solvent-resistant type expandable polymer particle and a preparation method of the solvent-resistant type expandable polymer particle. The preparation raw materials comprise the following components: 200 to 305 parts of water, 16 to 42 parts of an additive, 0.2 to 0.5 part of a dispersant, 138 to 350 parts of an emulsion of polyacrylate nanoparticles with a cross-linked structure, 63.35 to 82.1 parts of a reaction monomer, 20 to 22 parts of an alkane compound and 1 part of an initiator. According to the invention, the emulsion of the polyacrylate nanoparticles with a cross-linked structure is added into the expandable polymer particles, and the polyacrylate nanoparticles wrap the surfaces of the expandable polymer particles, so that not only is the problem of adhesion and aggregation of the particles in the polymerization process solved, but also the solvent resistance of the expandable polymer particles can be improved. 本发明提供一种耐溶剂型可膨胀聚合物粒子及其制备方法，所述耐溶剂型可膨胀聚合物粒子按重量份计，其制备原料包括以下组分：水200-3