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.

与普通塑料相比，聚醚醚酮 (PEEK)、聚醚酰亚胺 (PEI)、聚砜 (PSU) 等工程聚合物表现出优异的机械性能，并且即使在非常高的温度下也具有稳定性，例如 PEEK 的玻璃化转变。熔点约为150℃，熔融温度约为340℃，弹性模量约为4GPa，密度为1.3g/cm3。因此，当需要强大的机械性能和最小化重量时，例如在航空航天、航空和汽车工业等加拿大经济的重要部门中，这些材料非常有趣。通过添加碳纤维或其他（纳米）颗粒（炭黑、碳纳米管等）等固体填料，可以改进、增强和定制这些高性能聚合物的性能，从而开发新的工程聚合物共混物。配方和（纳米）复合材料是增强和开发针对目标应用的全新材料性能的重要且低成本的方法。该研究计划的主要目标是通过熔融挤出开发高性能工程聚合物共混物和（纳米）复合材料。针对需要坚固、轻质和耐用材料的航空航天、航空、汽车和生物医学领域的应用，为了实现这一目标，我们的团队请求资金升级我们的一台双螺杆挤出机，以便能够进行加工。工程聚合物、其共混物和（纳米）复合材料在 350°C 至 425°C 的温度范围内，以及为熔丝制造 3D 打印机准备长丝的配件。我们的团队由 7 名具有化学、机械背景的申请人组成。和工程物理学，来自蒙特利尔理工学院 (PM)、高等理工学院 (ETS) 和麦吉尔大学，以及 6 位具有互补性的合作者与加拿大航天局、ArianeGroup、Hutchinson Aerospace and Industry、NanoXplore、Dyze Design 和 MEKANIC 合作，已经开展了各种需要工程聚合物共混物和纳米复合材料的项目。所要求的挤出机将是一种独特的仪器。对于蒙特利尔地区的学术机构 - 魁北克省没有学术机构拥有加工高温工程热塑性塑料所需的设备，由于该设备将成为 CREPEC 基础设施的一部分，因此可供所有人使用。该战略集群由来自 8 所大学机构（理工学院、麦吉尔大学、康科迪亚大学、ETS、ULaval、舍布鲁克、UQTR 和 UQAC）的 78 名教授指导，指导着 400 多名研究生。