Thermal properties of hybrid PP composites

Modified polypropylene composites were obtained by incorporating both chopped glass and mineral fillers. The compositions prepared were characterized. Studies on melting and crystallisation behaviour of PP composites were carried out with the help of differential scanning calorimetry. Studies revealed that peak melting temperature of PP were slightly affected by the presence of chopped glass fibers and wollastonite in the entire composition range. Unlike the crystalline/amorphous systems, the peak melting temperature remained more or less unaffected in the composites. Wollastonite acted as nucleating agent and facilitated crystallization/ nucleating effect.