A high temperature upgrade for the twin-screw extruder to process high-performance hybrid PEEK-based formulations and other engineering polymer-based (PEI, PPSU, etc.) systems

双螺杆挤出机的高温升级，可加工高性能混合 PEEK 配方和其他工程聚合物基（PEI、PPSU 等）系统

• 批准号: RTI-2022-00666
• 负责人: Virgilio, Nick
• 金额: $ 10.93万
• 依托单位: École Polytechnique de Montréal
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=741770
• 关键词: temperature; upgrade; twin; screw; extruder

Engineering polymers such as polyether ether ketones (PEEKs), polyether imides (PEIs), polysulfones (PSU), etc., display superior mechanical properties compared to commodity plastics, and stability even at very high temperatures. For example, the glass transition of PEEK is around 150°C and its melting temperature is about 340°C, with an elastic modulus of approximately 4 GPa and a density of 1.3 g/cm3. As a result, these materials are quite interesting when both strong mechanical properties are required, with the need to minimize the weight - e.g. in fields of applications such as the aerospace, aeronautic and automotive industries, which are all important sectors of Canada's economy. In addition, it is possible to modify, enhance and tailor the properties of these high performance polymers by adding solid fillers such as carbon fibers, or other (nano)particles (carbon black, carbon nanotubes, etc). Developing new engineering polymer blend formulations and (nano)composites represents an important and low-cost approach to enhance and develop entirely new material properties for the targeted applications. The main objective of this research program is to develop high performance engineering polymer blends and (nano)composites by melt extrusion for applications in the aerospace, aeronautic, automotive and biomedical sectors in which strong, lightweight and durable materials are required. To realize this objective, our team request funds to upgrade one of our twin-screw extruder, in order to be capable of processing engineering polymers, their blends and (nano)composites in a temperature range of 350°C to 425°C, with the accessories to prepare filaments for Fused Filament Fabrication 3D printing machines. Our team is composed of 7 applicants with backgrounds in chemical, mechanical and engineering physics, from Polytechnique Montreal (PM), École de Technologie Supérieure (ETS), and McGill University, and of 6 collaborators with complementary expertises. A variety of projects already in progress and requiring engineering polymer-based blends and nanocomposites are realized in partnerships with The Canadian Space Agency, ArianeGroup, Hutchinson Aerospace and Industry, NanoXplore, Dyze Design and MEKANIC. The requested extruder will be a unique instrument for academic institutions in the Montreal area - no academic institution in Quebec has the required equipment to process high temperature engineering thermoplastics. Since the equipment will be part of the CREPEC infrastructure, it will be available for use by all 78 professors, supervising more than 400 graduate students, from the 8 university institutions (Polytechnique, McGill, Concordia, ETS, ULaval, Sherbrooke, UQTR and UQAC) comprising this strategic cluster.

与商品塑料相比，工程聚合物（例如聚醚酮酮（PEEKS），聚醚（PEI），多硫酮（PSU）等，也具有优越的机械性能，即使在非常高的温度下也具有稳定性。例如，PEEK的玻璃转变约为150°C，其熔化温度约为340°C，弹性模量约为4 GPa，密度为1.3 g/cm3。结果，当需要两个强的机械性能时，这些材料非常有趣，需要最大程度地减少重量 - 例如在航空航天，航空和汽车行业等应用领域中，这都是加拿大经济的重要部门。此外，可以通过添加诸如碳纤维或其他（Nano）颗粒（碳黑色，碳纳米管等）等实心填充剂（例如碳纤维，碳纳米管等）来修改，增强和调整这些高性能聚合物的性质。开发新的工程聚合物混合配方和（NANO）复合材料是一种重要且低成本的方法，可以增强和开发针对目标应用的全新材料特性。该研究计划的主要目的是通过熔体扩展来开发高性能工程聚合物混合物和（NANO）复合材料，用于航空航天，航空，汽车和生物医学领域，其中需要强，轻巧和耐用的材料。为了实现这一目标，我们的团队要求资金升级我们的双螺钉挤出机之一，以便能够处理工程聚合物，其混合物和（Nano）复合材料的温度范围为350°C至425°C，并配备融合纤维纤维制造3D打印机器的配件。我们的团队由7位具有化学，机械和工程物理背景的申请人组成，来自Polytechnique Montreal（PM），TechnologieSupérieure（ETS）和McGill University以及6位具有完整专业知识的合作者。已经正在进行的各种项目，并需要与加拿大航天局，Arianegroup，Hutchinson Aerospace and Industry，Nanoxplore，Nanoxplore，Dyze Design和Mekanic合作实现基于工程聚合物的混合物和纳米复合材料。要求的挤出机将是蒙特利尔地区学术机构的独特工具 - 魁北克没有学术机构具有处理高温工程热塑性塑料的所需设备。由于该设备将成为CREPEC基础设施的一部分，因此所有78名教授都可以使用该设备，负责从8个大学机构（Polytechnique，McGill，Concordia，Ets，Ets，Ulaval，Sherbrooke，Sherbrooke，UQTR和UQAC）中监督400多名研究生。