초록 |
PET film was used as a substrate for inkjet printing, while various characteristic changes of the printing were observed according to the contact angle on the substrate surface. The contact angle was affected by the concentration of KOH solution, and a surface condition suitable for composing Copper circuit was obtained by printing Pd(II) catalyst ink and electroless plating when it was treated in 7~10M KOH solution for 60 minutes at 60℃. The surface properties of PET film were analyzed using a contact angle instrument, FTIR-ATR, XPS, FESEM and AFM. The physical properties of Pd (0) particles were analyzed by XPS and AFM, while the characteristics of electroless copper plating were analyzed by video microscope and XPS. |