Structure and Rheology of Concentrated Dispersions: Statistical Mechanical Theory and Light Scattering Measurements

这项研究是对胶体分散体的结构和流变性的理论和实验相结合的研究。将有效介质性质引入到统计理论中，以评估粒子相互作用对。提出了各种体系的结构和流变性质的计算方法。这一理论将通过光散射测量，对硬球、粘球和带有接枝聚合物层的球的混合物进行测试。统计力学方法可以被视为分子动力学或斯托克斯式模拟的替代或补充，涵盖稀释和中等浓度的分散体系。建议的理论对于产生的基本信息以及对汽车和建筑涂料中感兴趣的胶体分散体、加工成分散体的陶瓷颗粒、化妆品和印刷油墨中感兴趣的胶体分散体的实验的指导和关联获得的洞察力应该是有价值的。

The proposed research is a combined theoretical and experimental investigation of the structural and rheological properties of colloidal dispersions. The effective medium properties are incorporated in a statistical theory to evaluate pair of particle interactions. The calculation of the structure and rheological properties for a variety of systems is proposed. The theory will be tested via light scattering measurements, for mixtures of hard spheres, sticky spheres and spheres bearing grafted polymer layers. The statistical mechanics approach can be regarded as an alternative or complement to molecular dynamics or Stokesian simulations, covering dilute and medium concentrated dispersions. The suggested theory should be valuable for the fundamental information generated, as well as the insight gained for guiding and correlating experiments for colloidal dispersions of interest in automotive and architectural coatings, ceramic particles processed as dispersions, cosmetics, and printing inks.