Reactive and Non-Reactive Mixing in Polymer Processing

聚合物加工中的反应性和非反应性混合

• 批准号: 8513686
• 负责人: Julio Ottino
• 金额: $ 10.02万
• 依托单位: University of Massachusetts Amherst
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1986
• 资助国家: 美国
• 起止时间: 1986-02-15 至 1989-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8513686&HistoricalAwards=false
• 关键词: Reactive; Non; Mixing; Polymer; Processing

Work is continued on establishing a theoretical basis for analysis viscous flow in reacting and non-reacting systems. Previous efforts have included (and will continue to include in this work) both theoretical analysis and its experimental verification. The starting point is a course segregated mixture consisting of striations of large blobs. In reactive mixing the fluids interdiffuse and undergo chemical reactions that might or might not be controlled by the fluid dynamcis. Three time scales have to be taken into account: diffusion, reaction, and local fluid mechanical time factors. In non-reactive flows only the first and last are considered.

继续为分析反应和非反应体系中的粘性流动建立理论基础。以前的工作包括（并将继续包括在这项工作中）理论分析和实验验证。起始点是由大斑点的条纹组成的过程分离混合物。在反应混合中，流体相互扩散并发生化学反应，这些化学反应可能受流体动力学控制，也可能不受流体动力学控制。必须考虑三个时间尺度：扩散、反应和局部流体力学时间因素。在非反应性流中，只考虑第一个和最后一个。