Abstract
The non-isothermal cold crystallization behaviors of poly(lactic acid) (PLA)/poly(butylene adipate-co-terephthalate)/titanate-treated calcium carbonate (T-CaCO3) composites were studied by means of differential scanning calorimetry. The activation energies (E a) of non-isothermal cold crystallization were calculated by Kissinger’s method. It is found that Jeziorny’s and Mo’s methods well describe the non-isothermal cold crystallization kinetics of neat PLA and PLA composites, while Ozawa’s model fails. The cold crystallization rate and E a of PLA composites are greater than those of neat PLA. It is attributed to the dual effect (heterogeneous nucleating agent and physical hindrance) of T-CaCO3 on the cold crystallization.
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