Abstract
The effects of organoclay platelets and ethylene-propylene-diene copolymer grafted with maleic anhydride (EPDM-g-MA) on the isothermal crystallization kinetics of poly(trimethylene terephthalate) (PTT) were investigated by differential scanning calorimeter (DSC) over the crystallization temperature range of 164°C–180°C. The crystallization kinetics under isothermal conditions could be described by the Avrami equation, with values of the Avrami exponent between 2.4 and 2.9 for all samples. The crystallization rate parameters (K) decrease with increasing of the melt crystallization temperature for all samples. The activation energies were determined by the Arrhenius equation for isothermal crystallization. The equilibrium melting point of isothermally crystallized samples was also evaluated.
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