Application of Compatibilizer

Compatibilizer is a new type of functional plastic additives, also called compatibilizer, polymer coupling agent, macromolecular organic polymer compatibilizer. The compatibilizer is to overcome the shortcomings of poor compatibility of some polymers during blending. Its function is to reduce the interfacial tension. The third component added increases the thickness of the interfacial layer, prevents the agglomeration of the dispersed phase, and stabilizes the formed phase morphology structure , In order to increase the compatibility of the two polymers, increase the mutual bonding force, and form a stable blend structure. The key to polymer blending modification is to improve the compatibility of different polymers, and adding an appropriate amount of compatibilizer can make it have good compatibility. Solve the problems of delamination, peeling on the surface and low product strength of the blend during injection molding, extrusion and other processing.

There are two common methods for compatibilizing blends. The first method is to chemically modify the two components to introduce polar groups. Through special interaction between the groups, exotherm is generated and compatibility is achieved. The second method is to add a small amount of the third component to the blend, through its aggregation in the two interface regions, reduce the interfacial tension between the two components, increase the interfacial tension between the two components, and improve the interfacial compatibility between the components. Sex. The third component added is the compatibilizer.