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首页> 外文期刊>Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers >Population balance model development and experimental validation for the heteroaggregation of oppositely charged micro- and nano-particles
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Population balance model development and experimental validation for the heteroaggregation of oppositely charged micro- and nano-particles

机译：人口发展和平衡模型heteroaggregation实验验证电荷相反的微型和纳米粒子

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摘要

The properties of heteroaggregates (aggregates of particles that are different in various aspects such as size, surface charge) depend on the properties of the particles along with the initial relative concentration of the particles. In this article, the heteroaggregation of two different types of oppositely charged hydrogel particles, alginate microparticles and chitosan nanoparticles were studied. A population balance model (PBM), popularly used to model particulate processes was developed based on the inter-particle interactions such as van der Waals, electrostatic and hydration in order to study the effect of initial relative concentration of alginate and chitosan on the final heteroaggregate size distribution. The presence of three different regimes (namely, 'dispersed, uncoated', 'agglomerated' and 'dispersed, coated') based on the initial concentration of alginate and chitosan was observed both from the model calculations and the experiments. In addition, to better understand these interactions, the effect of various process parameters on the aggregation kinetics were studied. (C) 2016 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
机译：heteroaggregates(骨料的性质粒子在各方面不同如大小、表面电荷)的依赖粒子的属性的初始粒子的相对浓度。在本文中,两个的heteroaggregation不同类型的电荷相反水凝胶粒子,海藻酸微粒子和壳聚糖纳米粒子进行了研究。模型(PBM),广泛用于颗粒模型过程是基于开发的inter-particle van der等交互瓦尔斯,静电和水化研究初始相对的影响海藻酸和壳聚糖的浓度最后heteroaggregate大小分布。存在三种不同的政权(即“分散,裸”,和“凝聚”“分散,涂布”)基于最初的海藻酸和甲壳胺的浓度观察从模型计算和实验。这些交互,各种过程的影响参数对聚合动力学研究。工程师。保留。

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