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1、Chapter 7 The computer simulation and data process of polymer crystallization1.Advance in simulation of polymer crystallization2.Software(Matlab,mathcad,origin),为什么要进行计算机模拟实验,实际实验和解析理论发生矛盾 不能进行的实验的预测 国际上限制的实验 难以观察的实验现象的教学工艺过程的模拟 对实际实验的可能性进行预测,Extensions of the Avrami Equation to Various Polymer Crys
2、tallization ModelsJAMES N.HAY*and ZBIGNIEW J.PRZEKOPDepartment of Chemistry,The University of Birmingham,Birmingham B15 2TT,EnglandJ.Polym.Sci.,Polym.Phys.Ed.,1979,17(6),951-9,Computer modelling studies of the progress of crystallization in polymer melts mixed mechanism,volume shrinkage variable cry
3、stalline density nonrandom nucleation.It is concluded that the Avrami equation is a reasonable approximation to most of these systems except(c).,Clearly,the computer simulation of polymer crystallization as described above is potentially a powerful technique for assessing models.As used above,it had
4、 its limitations,as the number of scanning points adopted was restricted by thecomputational time,but with faster and more powerful computers this technique will become more accurate and more successful.,Galeski(1981)simulated two-dimensional and three-dimensional spherulite growth and showed the Avrami exponent,the spherulite size distributions and morphology for different nucleation modes.,Computer simulation showed that the type of primary nucleation influencesnot only the Avrami exponent but also the spherulite size distribution.,E.Pineda,T.Pradell,et al.(2001),
