Development of a Non-Isothermal, Non-Newtonian Flow Simulation for Mixing Polymer Blends

电话：+86-9634701 在大多数聚合物工艺中，最终部件的质量在很大程度上取决于聚合物共混物的混合和工艺过程中发生的粘性加热。 混合质量对材料性能和部件成型性都有很大影响。 优化混合过程既耗时又昂贵。 通常需要构建复杂的可视化设备，即带有透明料筒的挤出机模型，以验证混合过程。 本研究计画将探讨一个模拟程式，并模拟聚合物共混物在复杂的三维混合装置中的混合现象，例如单螺杆挤出机。 该项目是NSF GOALI项目，将与3 M工艺开发-聚合物加工实验室合作。 流动可视化实验将在威斯康星州大学进行，双螺杆挤出实验将在3 M进行。 该研究项目的结果可以为现有加工设备的优化和通过现有聚合物，填料和溶液的混合开发新的工程材料提供有价值的发现。

DMI-9634701 Osswald In most polymer processes the quality of the final part stems back in great part to the mixing of the polymer blends and the viscous heating that occurs during the process. Both the material properties and the formability of the component into shaped parts are highly influenced by the quality of the mixing. Optimizing mixing processes is time consuming and expensive. It is often necessary to build complex visualization equipment, i.e. model extruders with transparent barrels, to qualify the mixing processes. This research project will investigate a simulation program and to model the mixing phenomena of polymer blends inside complex three dimensional mixing devices, such as single and screw extruders. This project is a NSF GOALI project and will be in partnership with 3M Process Development-Polymer Processing Laboratory. The flow visualization experiments will be performed at the University of Wisconsin and the twin screw extrusion experiments will be carried out at 3M. Results of this research project could provide valuable findings in the optimization of existing processing equipment and development of new engineering materials through blending of existing polymers, fillers, and solutions.