A study on the corona-treated PVdF films with alkyl methacrylate monomer as a coupling agent

Polyvinylidene fluoride (PVdF) films were treated by corona discharge coupling technique to enhance the interfacial adhesion of PVdF-PVC films with alkyl methacrylate monomers as coupling agents. Effects of corona discharge voltage, film transfer speed on the surface properties of PVdF and interfacial adhesion of PVdF-PVC are investigated. The contact angle decreased with an increasing corona discharge voltage and a decreasing film transfer speed. The interfacial adhesion was enhanced when the PVdF film was treated in a mild corona condition. The interfacial adhesion of PVdF-PVC films exhibited excellent results when the PVdF film was corona-treated in alkyl methacrylate atmospheric condition.