Evaluation of the influence of Carbonyl indexes on adhesion of O2 plasma PECVD treated Polypropylene sheets on CuO

Abstract

Increase in interfacial adhesion is often correlated to the increase in the chemical functionalities on the surface of the polymer. The presence of carbonyl in the surface is often correlated to the increase in its adhesion capacity, although a quantitative analysis was not further established. In this study, the interfacial characteristics between polypropylene and CuO are investigated by the observance of change in the Carbonyl index (C.I.) of the PP along with its mechanical adhesion capacity change . The evaluation of the role of carbonyl functionality in polypropylene for polymer- ceramic adhesion along with its mechanical adhesion capacity as tested by the pull-off test method was examined to understand the adhesion property effect that it could bring to the polypropylene-CuO interface. Experimental results showed higher adhesion on samples with lower carbonyl index, which suggests that the presence of the carbonyl group isn't responsible for this increased interfacial adhesion behavior.