Abstract:The blend emulsions were mixed with the similar particle size emulsions of fluorinated acrylate emulsion and acrylate emulsions at 1:1 mass ratio. The blend films were prepared on PTFE plate at 15℃、30℃、45℃、60℃, respectively. The effects of film forming temperature on the self-organized gradient structure and surface properties of blend films were studied by FI-IR、PSA、CA、surface free energy analysis、SEM、SEM-EDX、XPS and mechanical properties. The results showed that the blend emulsions’ particles sizes reduced, at the same time the particles distribution of blend emulsions widened. The fluorine content of the F-P film surface was higher than that of the F-A film surface when the film forming temperature was beyond 45℃, and the fluorinated acrylate polymer components were enriched in the F-P film surface, while the acrylate polymer components were enriched in the F-A film surface. The surface property of the F-P film surface of blend film was similar to the pure fluorinated acrylate polymer. The concentration gradient of fluorine component was reduced from the F-P film surface to the F-A film surface, and the gradient structure and two sides of the blend film were more obvious.With the increase of temperature, the tensile strength of latex film increased significantly.