Effect of maleic anhydride on coating adhesion of PP substrate

Polypropylene (PP) has excellent mechanical and chemical properties. but It has poor adhesion and printability characteristics, however, due to it has the non-polar naturesurface; modification technique has been developed to establish a polar group on the surface of PP. Grafting of maleic anhydride (MA) onto PP has been a great concern during recent two decades. The main reason for grafting MA on a polyolefin matrix is the modification of PP onto a bipolar material. [1-3].