Preparation of polypropylene single-polymer composites with graphene nanoplatelets by film-stacking

Polypropylene single-polymer composites (PP SPCs) are the materials where both the reinforcing phase and the matrix phase are PP. Graphene nanoplatelets (GNPs) have good mechanical properties because of its unique structure. In this study, GNPs were used as one kind of nanofiller to add in PP SPCs to improve its thermal properties and tensile properties. The PP-GNPs SPCs were prepared by film-stacking method. Differential scanning calorimeter experiments (DSC) were executed to determine the hot pressing temperature and investigate the thermal properties. Influences of the GNPs content on the tensile properties of PP SPCs were studied through the tensile tests. The results show that the melting peak temperature and tensile properties increase with the increases of GNPs content.