PIR/PUR ratio was derived from differential manipulation of generalized polyisocyanurate kinetic model. The structural unit effects on polymerization of isocyanurate, urethane and urea linkages were evaluated based on Mayo-Lewise tercopolymerization scheme. The cell microstructural configuration model was further developed from profiled FOAMAT reactivity parameters with integrated analysis of cell interface physics. The interstitial border area was defined by interface free energy theory, the shear viscosity was evaluated by foam motion, gas fraction, and partial pressure, and the cell inflation was re-examined by gas-liquid surface tension variability. The cell anisotropic degree, assumed as an aspect ratio of infinitesimal volume elements in cell uniformity, was characterized by equilibrated work increase of surface energy approximated by 2D stretching deformation from sphere cell to spheroid cell. The relationship between pressure and surface tension of elongated cells was also derived from modelling at the same condition of cell deformation.

中文翻译：

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刚性聚异氰脲酸酯泡沫反应动力学、结构单元效应和泡孔构型机制的概括和建模

PIR/PUR 比率源自广义聚异氰脲酸酯动力学模型的差异操作。基于 Mayo-Lewise 三元聚合方案评估了结构单元对异氰脲酸酯、氨基甲酸酯和脲键聚合的影响。细胞微观结构配置模型是从分析的 FOAMAT 反应性参数与细胞界面物理的综合分析进一步发展起来的。间隙边界面积由界面自由能理论定义，剪切粘度由泡沫运动、气体分数和分压评估，并通过气液表面张力变化重新检查细胞膨胀。单元各向异性程度，假定为单元均匀性中无穷小的体积元素的纵横比，的特点是表面能的平衡功增加，近似于从球体细胞到球体细胞的 2D 拉伸变形。拉长细胞的压力和表面张力之间的关系也来源于在相同细胞变形条件下的建模。