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首页> 外文期刊>International Polymer Processing: The Journal of the Polymer Processing Society >Part IINumerical and Physical Modeling of Polymer Crystallization
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Part IINumerical and Physical Modeling of Polymer Crystallization

机译：第一部分聚合物结晶的物理模型

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摘要

Crystallization of thin polypropylene films was performed in isothermal,constant cooling-rate and mixed conditions.The experiments were first analyzed using the classical procedures based on simplified forms (Avrami,Ozawa) of the general Kol-mogoroff-Avrami-Evans (KAE) theory.These analyses,which can be applied over an unusually wide transformation range,show that the crystallizations are actually 2 D.Then,a procedure has been established for the determination of the nuclea-tion and growth parameters involved in the theoretical model presented in the first paper of this series.These parameters have been introduced into the model in order to predict the crystallization behavior in isothermal,constant-cooling-rate and mixed-conditions:transformed fraction,number of activated nuclei,final size distribution of semi-crystalline entities.A very good agreement is generally found between predictions and experimental results.
机译：聚丙烯薄膜的结晶是在等温，恒定冷却速率和混合条件下进行的。首先基于经典Kol-mogoroff-Avrami-Evans（KAE）理论的简化形式（Avrami，Ozawa）对实验进行分析。这些分析可应用于异常宽的转变范围，表明结晶实际上是2D的。然后，建立了确定该模型中提出的理论模型所涉及的核酸和生长参数的程序为了预测在等温，恒定冷却速率和混合条件下的结晶行为，已将这些参数引入模型中：转化分数，活化核数，半结晶实体的最终尺寸分布通常在预测和实验结果之间找到很好的一致性。

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