Non-isothermal crystallisation of polypropylene/hollow glass microspheres composites

Abstract

Polypropylene/hollow glass microspheres composites were prepared by melt blending. The nonisothermal crystallisation of the polypropylene (PP) and its composites were investigated via differential scanning calorimeter (DSC). The results showed that the crystallisation peaks shifted to lower temperature and the exothermic trace became wider when the cooling rate was increased. Moreover, the hollow glass microspheres caused an increase in both the crystallisation and initial crystallisation temperatures. In addition, the Jeziorny's and the Mo's methods were used to analyse the non-isothermal crystallisation kinetics. The results showed that the crystallisation rate increased with increasing cooling rate. Furthermore, the hollow glass microspheres decreased the crystallisation rates of the matrix.

Effect of Hollow Glass Microspheres with Different Contents and Types on Properties of Polypropylene Composites

“…Liang [7] et al examined the thermal properties of HGM-filled PP composites with different densities and different volume fractions. Li [38] et al prepared HGM-filled PP composites with different mass fractions and studied their non-isothermal crystallization behavior. The authors found that the HGM with modification resulted in lower peak crystallization temperature and lower initial crystallization temperature.…”