Fluid mechanics of polymer melt filtration

聚合物熔体过滤的流体力学

• 批准号: 2435038
• 金额: --
• 依托单位: University of Leeds
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2435038
• 关键词: Fluid; mechanics; polymer; melt; filtration

Sequential stretched film casting is employed in the manufacture of thin polymer films used for a wide range of packaging, imaging, electronic, photovoltaic and other industrial applications. To maintain the integrity of the manufactured film while maximising recycle content, it is critical that the polymer melt is filtered of all impurities, but filters fill up through collection of the contaminants and need frequent and costly replacement, necessitating significant downtime to the production process. This project will develop novel computational tools for the analysis of two commonly used filter designs in order to gain a better understanding of the degradation of the filters over time and how to enhance their performance, efficiency and longevity. In addition to predicting the complex three-dimensional dynamics of these heated highly viscous, high-pressure flows, the project will require the development of models for the evolution of the filter properties over time which may require some small-scale laboratory work and/or industrial pilot line studies.

连续拉伸膜流延用于制造用于广泛的包装、成像、电子、光伏和其他工业应用的薄聚合物膜。为了保持所制造的膜的完整性，同时最大化再循环含量，过滤掉聚合物熔体中的所有杂质是至关重要的，但是过滤器通过收集污染物而被填满，并且需要频繁且昂贵的更换，使得生产过程需要显著的停机时间。该项目将开发新的计算工具，用于分析两种常用的过滤器设计，以便更好地了解过滤器随时间的退化以及如何提高其性能，效率和寿命。除了预测这些加热的高粘度、高压流的复杂三维动力学之外，该项目还需要开发过滤器性能随时间演变的模型，这可能需要一些小规模的实验室工作和/或工业试验线研究。