球形
多孔性
氯乙烯
材料科学
悬挂(拓扑)
复合材料
悬浮聚合
化学工程
单体
高分子化学
热力学
数学
聚合物
物理
工程类
共聚物
纯数学
同伦
作者
Esteban F. Márquez,Luis Lagos
出处
期刊:Aiche Journal
[Wiley]
日期:2004-11-10
卷期号:50 (12): 3184-3194
被引量:12
摘要
Abstract A mathematical model that describes the effect of conversion and polymerization temperature on the porosity of suspension poly(vinyl chloride) is proposed. The model considers that the packing of the primary particles that develop in the polymerizing drop begins at a conversion at which the particles become motionless. The model considers the morphology of the primary particles as a group of particles with a particular sphericity that form a network whose porosity decreases as conversion increases. Furthermore, the model considers the effect on porosity of the desorption of residual monomer and the difference in contraction and deformation between the pericellular membrane and the network of particles. The model contains three parameters that are estimated from data reported in the open literature. The agreement between experimental data and the theoretical predictions of the model are satisfactory. © 2004 American Institute of Chemical Engineers AIChE J, 50: 3184–3194, 2004
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