REU Supplement: Structure, Properties and Micromechanics of Fine Particle Clusters: Application to Agglomerate Dispersion

REU 补充：细颗粒团簇的结构、性质和微观力学：在附聚物分散中的应用

• 批准号: 8703638
• 负责人: Ica Manas-Zloczower
• 金额: $ 10.53万
• 依托单位: Case Western Reserve University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-10-15 至 1990-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8703638&HistoricalAwards=false
• 关键词: REU; Supplement; Structure; Properties; Micromechanics

This research will focus on elucidation the mechanisms of agglomerate dispersion in controlled flow fields. Mixing of solid additives into a liquid generally involves rupture and distribution ofthe separated particles throughout the liquid. In order to elucidate the rate determining step in dispersive mixing, the principal investigator will develop and analyze models predicting the dynamics of the agglomerate size distribution in controlled flow fields. Each model will concentrate on a particular step of the mixing process and theoretical predictions will be compared with experimental data. The results of this investigation will advance the understanding of the mechanism of dispersion of solids into liquids and will provide insight into the design of actual mixing equipment. Many materials of industrial significance are mixtures of solid additives into liquids. Examples of such materials include dispersion of pigments of inks, as well as most plastics and rubber products. The quality of the dispersion strongly affects the physico-mechanical properties of the final product. This brings about the need for understanding and control of the dispersion process.

这项研究将集中于阐明控制流场中团聚分散的机理。固体添加剂混合到液体中通常涉及分离的颗粒在整个液体中的破裂和分布。为了阐明分散混合中的速率决定步骤，首席研究员将开发和分析预测控制流场中团聚体尺寸分布动力学的模型。每个模型将集中在混合过程的特定步骤，理论预测将与实验数据进行比较。这项研究的结果将促进对固体分散到液体中的机理的理解，并将为实际混合设备的设计提供见解。许多具有工业意义的材料是固体添加剂与液体的混合物。这类材料的例子包括油墨颜料的分散，以及大多数塑料和橡胶产品。分散体的质量对最终产品的物理机械性能有很大影响。这就需要了解和控制分散过程。