Improvement of PP surface free energy and wetability by Mediated Electrochemical Oxidation

The surface of polypropylene sheet suffers from poor adhesion to its coating, despite surface modification. In this work the effect of surface electrochemical treatment by Ag (II) ions at different temperatures and electrolysis time was investigated by water contact angle, surface free energy and ATR analysis. The new active sites formed were associated with an appreciable increase in the new oxygen containing polar groups. Improvement in wettability and surface free energy was also achieved especially at high temperatures

Keywords:

PP , silver (II) , mediated electrochemical oxidation , surface activation