Improvement of the Thermal and Mechanical Properties of Polypropylene/Modified Halloysite Nanotubes Composites.

The preparation and characterization of composite materials composed of polypropylene (PP) as the base mixed with halloysite nanotubes (HNT) at various weight percentages (0.5, 1.5, and 3 wt.%) using a melt extrusion method operated at a temperature between 190 °C and 200 °C is described. The impact of the addition of the HNT filler on the PP nanocomposites was investigated based on the thermal and mechanical properties. The thermal characterization was conducted by differential scanning calorimetry (DSC). Significant increases in the rheological properties were observed with the addition of a high content of HNTs. The water absorption decreased with increasing HNT. The SEM micrographs showed that the HNT fillers were homogeneously dispersed throughout the entire PP matrix. [ABSTRACT FROM AUTHOR]