Abstract
ABSTRACTHollow glass microspheres (HGMs) were surface modified by a rare-earth/titanium coupling agent. Then polypropylene/HGMs composites were prepared by the method of melt blending. The nonisothermal crystallization of the polypropylene (PP) and its composites were investigated by differential scanning calorimetry. The results showed the modified HGMs caused a decrease in the peak crystallization temperature and onset crystallization temperature. Further analysis of the nonisothermal crystallization kinetics, by using the Jeziorny and Mo equations, showed that the crystallization rate rose with increasing cooling rate. Moreover, the presence of the modified HGMs slightly increased the crystallization rates of PP.
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