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首页> 外文期刊>Journal of Applied Polymer Science >DYNAMIC MODELING OF LIMITED PARTICLE COAGULATION IN EMULSION POLYMERIZATION
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DYNAMIC MODELING OF LIMITED PARTICLE COAGULATION IN EMULSION POLYMERIZATION

机译：乳液聚合中有限颗粒凝集的动力学模型

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摘要

In emulsion polymerization, a limited degree of particle coagulation may occur. Particle coagulation is caused by a loss of colloidal stabilization when the surface coverage of emulsifier on the particles drops below a critical value. It has been demonstrated experimentally in a previous article that the time scale for particle coagulation is small compared to the time scale for particle growth by polymerization and absorption of monomer. This indicates that the coagulation process can probably be described by von Smoluchowski kinetics. Based on this result, a comprehensive dynamic model for the simulation of limited particle coagulation in emulsion polymerization has been developed. It has been shown that there is a reasonable agreement between simulations with the dynamic model and experimental data (e.g., conversion time history, particle number, and particle size distribution). (C) 1996 John Wiley & Sons, Inc. [References: 28]
机译：在乳液聚合中，可能发生有限程度的颗粒凝结。当乳化剂在颗粒上的表面覆盖率下降到临界值以下时，由于胶体稳定性的丧失而导致颗粒凝结。在先前的文章中已经通过实验证明，与通过单体的聚合和吸收进行的颗粒生长的时间尺度相比，颗粒凝结的时间尺度小。这表明凝结过程可能由冯·斯莫卢霍夫斯基动力学来描述。基于此结果，已开发出用于模拟乳液聚合中有限颗粒凝结的综合动力学模型。已经表明，在具有动态模型的模拟与实验数据（例如，转化时间历史，颗粒数和粒径分布）之间存在合理的一致性。 （C）1996 John Wiley＆Sons，Inc. [参考：28]

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