| abstract |
The invention discloses a preparation method of fluorosilicon graft-modified acrylic resin, comprising the following steps: step 1, preparing organosilicon-modified hydroxy acrylic resin; step 2, preparing organosilicon-modified hydroxy acrylate macromolecular initiator; Step 3, preparing fluorosilicon graft modified acrylic resin. In a method for preparing a fluorosilicon graft-modified acrylic resin of the present invention, an organosilicon-modified hydroxy acrylic resin is prepared in step 1, an organosilicon-modified hydroxy acrylate macromolecular initiator is prepared in step 2, and a fluorosilicone resin in step 3 is prepared. The graft-modified acrylic resin is atom transfer radical controlled polymerization, and the amphiphilic fluorosilicon graft acrylic modified resin containing hydrophobic fluorine-containing functional groups in the polymer side chain is prepared by the combination of free radical and atom transfer radical controllable polymerization. , to improve the surface hydrophobicity and substrate adhesion, and at the same time, the fluorine and silicon elements are more uniformly distributed in the coating film, which enhances the corrosion resistance of the coating film. |