Most of the hybrid films and rigid plastics are films made of PE and PP, and the proportion of other films is relatively small. As long as the PP and PE films exceed 50%, they can be made into qualified products. Because, those that can be plasticized can be combined with those that cannot be plasticized and can be used as fillers. Second, the mixing and dispersion problems are considered in the design of the barrel and screw of the equipment, which increases the function of mixing and dispersion; at the same time, the length of the screw barrel is lengthened, so that the plasticization and dispersion are more sufficient.