The so-called compatibilizer can be understood as a surfactant in thermodynamic nature, but the compatibilizer used in the polymer alloy system generally has a high molecular weight, and after adding the compatibilizer to the incompatible polymer system and mixing and mixing at a certain temperature, the compatibilizer will be confined to the interface between the two polymers, which plays a role in reducing the interfacial tension, increasing the thickness of the interfacial layer, and reducing the size of the dispersed particles, so that the system finally forms a thermodynamically stable phase structure with macroscopic uniform and microscopic phase separation characteristics.
