A model for predicting extrudate swell and average cell diameter of polypropylene foam is proposed based on the relationship between the extrudate swell and capillary number.
综合胀大比与毛细管数的关系，提出了聚丙烯发泡体系挤出胀大和泡孔平均直径的预测模型。
It's found that the tetrakaidecahedral model can predict the elastic properties of the closed-cell foam quite well.
结果表明，十四面体模型可以较好地预测低密度闭孔泡沫的弹性性能。
Young's modulus error of 16.7%, which shows that the closed-cell foam model is valid.
杨氏模量误差值为16.7%，说明所建立的闭孔泡沫模型是有效的。
Based on the foaming process assumptions and the characteristics of the foam microstructure, the closed-cell foam model of a simple cubic unit cell was established.
在对发泡过程进行假设的基础上，根据泡沫材料微结构的特点，建立闭孔泡沫材料的简单立方单胞模型。
Based on the foaming process assumptions and the characteristics of the foam microstructure, the closed-cell foam model of a simple cubic unit cell was established.
在对发泡过程进行假设的基础上，根据泡沫材料微结构的特点，建立闭孔泡沫材料的简单立方单胞模型。
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