Multi variable tandem extrusion line

在本申请的范围内，正在申请为汉诺威莱布尼茨大学机械工程校区新成立的塑料和循环经济研究所IKK采购可修改的挤出生产线（r1-Modul）的资金。可灵活配置的回收挤出设备可用于增强资源效率方面的应用型实验知识，特别是热塑性塑料废物的材料回收。通过一个接一个地直接连接两个双螺杆挤出机，可以在熔融过程中使用过滤器级联热机械地纯化热塑性废料，随后使用配混进行改性或再配混。此外，该过程还伴随着对加工热塑性塑料的流变学和嗅觉特性以及它们的颜色和化学成分的分析。该分析使用集成的在线流变仪、模块化气体提取点、在线颜色测量系统和近红外光谱（NIRS）模块进行。这些与工艺相关的扩展使人们能够了解热塑性塑料在挤出技术加工过程中发生的变化，并为开发新产品和塑料专用配方提供了宝贵的科学依据，这在回收塑料的情况下是一个特殊的挑战。 对于大学内的其他合作用户，使用加工厂r1-Modul，除了塑料外，还可以加工其他材料，例如金属或（混合）复合材料，从而为整个校园开辟新的可能性和研究领域。除了产品开发领域的研究工作外，设备工程领域的研究课题（例如刀具磨损）也发挥着重要作用。该工厂将大大扩展汉诺威莱布尼茨大学的应用型研究潜力。这条特制的挤出生产线为科学家和行业提供了国家和国际层面的塑料行业知识开发的宝贵投资。

In the scope of this application a funding for the procurement of a modifiable extrusion line (r1-Modul) for the newly established Institute of Plastics and Circular Economy IKK at the Campus for Mechanical Engineering of Leibniz University Hannover is being requested. The variably configurable recycling extrusion plant serves for application-oriented experimental knowledge enhancement with regard to resource efficiency and especially material recycling of thermoplastic waste. Through direct coupling of two twin-screw extruders one after another, it is possible to purify the thermoplastic waste materials during melting process thermomechanically using filter cascade and subsequently modify or recompound using compounding. In Addition, this process is accompanied with analysis of rheological and olfactory properties of the processed thermoplastics as well as their color and chemical composition. This analysis takes place using integrated online rheometer, modular gas extraction point, inline color measurement system and near-infrared spectroscopic (NIRS) - modul module. These process-related extensions enable understanding of the changes occurring with thermoplastics during extrusion-technological processing and offer a valuable scientific basis for development of new product- and plastic-specific formulations, which represent a particular challenge in the case of recycled plastics. In regard to the further co-users within the university, using the processing plant r1-Modul it is possible to process besides plastics also other materials, like e.g. metals or (hybrid) composites, thus opening new possibilities and research areas for the entire campus. Besides the research work in the field of product development also research topics in the field of plant engineering, like e.g. tool wear, play a significant role. This plant would expand significantly the application-oriented research potential of the Leibniz University Hannover.This specially manufactured extrusion line offers a valuable investment in knowledge development in plastics industry at the national and international level for scientists as well as for the industry.