Non-isothermal crystallization behaviors of PPano-ZnO ( PZ ) composites were investigated by DSC. The non-isothermal crystallization kinetics was analyzed by Avrami and Mo methods. The effective activation energy ( △E) of both neat PP and PPano-ZnO composite was calculated from Flynn-Wall-Ozawa equation. The results showed that the crystallization onset temperature ( To) and crystallization temperature ( Tp) of PZ composites increased compared to neat PP. Moreover, the crystallization rate (Zc) of PZ composites decreased by the addition of nano-ZnO, but the half-time of crystallization (t1/2) and F (T) increased. The crystallization rate of PZ composites increased when nano-ZnO content increased, then gradually decreased. For the composites, AE of PPano-ZnO composite was decreased with increasing the nano-ZnO content.%采用示差扫描量热法( DSC)研究了聚丙烯(PP)/片状纳米氧化锌(nano-ZnO)复合材料的非等温结晶行为,并探讨了基于Avrami方程和莫志深方程的结晶动力学,最后利用Flynn-Wall-Ozawa方程计算了纯PP和PPano-ZnO复合材料非等温结晶过程中的活化能(△E).结果表明,PP中加入nano-ZnO后,复合材料的结晶起始温度(TO)和结晶峰值温度(TP)均有所提高;与纯PP相比,复合材料的半结晶时间(t1/2)和结晶速率[F(T)]升高,而结晶速率常数(Zc)降低;随着nano-ZnO含量的增加,复合材料的结晶速率先增加后减小;PPano-ZnO复合材料的活化能随nano-ZnO含量的增加而降低.
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