The surface of polypropylene (PP) film is modified by preirradiation grafting of polyethylene glycol methacrylate (PEGMA) with three kind of differentmolecular weight.

• 采用预辐射接枝法对预辐射的聚丙烯(PP)膜接枝不同分子量的甲基丙烯酸聚乙二醇酯(PEGMA)。