Structural Evolution in Dense Dispersions and Colloidal Composites

致密分散体和胶体复合材料的结构演化

• 批准号: 9218751
• 负责人: Raj Rajagopalan
• 金额: $ 24万
• 依托单位: University of Houston
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-06-01 至 1998-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9218751&HistoricalAwards=false
• 关键词: Structural; Evolution; Dense; Dispersions; Colloidal

It is proposed to study the effect of inter-particle short range surface forces on the long range microstructures and structural transition in dense colloidal dispersions. Results of static and dynamic light scattering, X-ray scattering and video-microscopy will be interpreted using statistical mechanical theory and an inverse-scattering theory. Stationary and sheared dispersions will be considered in experiments. The effects of colloidal chemistry and microhydrodynamics on the structural changes and rheological properties will be analyzed. If successful, the research will have a broad range of applications related to ceramic, surfactants and polymeric suspensions.

提出研究粒子间短程效应 长程微结构和结构上的表面力 在稠密的胶体分散体中的转变。 静态和 动态光散射、X射线散射和视频显微镜 将使用统计力学理论和 逆散射理论 固定和剪切分散体将 在实验中加以考虑。 胶体化学的影响 和微观流体力学对结构变化和流变学的影响 将分析属性。 如果成功，这项研究将有广泛的应用 涉及陶瓷、表面活性剂和聚合物悬浮液。