Ultra-fast Scanning Differential Scanning Calorimetry (DSC) for Advanced Thermal Analysis of Engineered Materials

用于工程材料高级热分析的超快扫描差示扫描量热法 (DSC)

• 批准号: RTI-2020-00725
• 负责人: Lee, PatrickChangDong
• 金额: $ 10.21万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=693549
• 关键词: Ultra; fast; Scanning; Differential; Calorimetry

Differential scanning calorimetry (DSC) is one of the most widely used characterization methods in the materials science and engineering field. While it provides valuable insight, conventional DSC equipment is limited to heating/cooling rates between 1-200 K/min. This is far below the rates actually experienced by materials in a manufacturing process. Materials in real industrial processes such as injection moulding, fibre spinning, thermal spray coating, and foaming experience rapid heating and cooling on the scale of 104 to 106 K/min, far outside the testing range of conventional DSC. ******Due to this limitation, there is a significant knowledge gap regarding the structural development in materials during these processes. The evolution of the material structure and molecular organization is extremely dependent on the cooling rate; this structural development in turn significantly influences the properties and performance of the material. In order to bridge this knowledge gap for the processes studied by the PI and co-PIs, we are requesting a Flash DSC device for ultra-fast scanning calorimetry of engineered materials. Flash DSC is an advanced DSC technique provided by Mettler Toledo which allows ultra-fast scanning from 6 to 2,400,000 K/min, and in temperature ranges from -95 to 1,000°C. Currently, no such equipment exists in Canada.******The applicants and their HQP will use the requested equipment for thermal analysis in the following research programs: (1) Nanolayered polymer films, (2) Polymer foaming, (3) In-situ nanofibrillated polymer composites, and (4) Thermal spray coatings. These research programs represent advanced manufacturing processes with rapid heating and cooling rates which cannot be replicated in a conventional DSC. The acquisition of this Flash DSC equipment will allow high-impact research that will help inform and optimize these industrial processes. This research will be highly valuable in growing Canada's advanced manufacturing sector, and provide an avenue for Canada to increase its global impact and expertise in this field. **

差示扫描量热法（DSC）是材料科学与工程领域最广泛使用的表征方法之一。虽然它提供了有价值的见解，但传统 DSC 设备的加热/冷却速率仅限于 1-200 K/min。这远远低于材料在制造过程中实际经历的速率。注塑、纤维纺丝、热喷涂和发泡等实际工业过程中的材料会经历 104 至 106 K/min 的快速加热和冷却，远远超出了传统 DSC 的测试范围。 ******由于这一限制，在这些过程中材料的结构发展方面存在显着的知识差距。材料结构和分子组织的演变极其依赖于冷却速率；这种结构的发展反过来又显着影响材料的特性和性能。为了弥补 PI 和 co-PI 研究过程的知识差距，我们请求使用 Flash DSC 设备对工程材料进行超快扫描量热。 Flash DSC 是梅特勒-托利多提供的先进 DSC 技术，可实现 6 至 2,400,000 K/min 的超快速扫描，温度范围为 -95 至 1,000°C。目前，加拿大没有此类设备。*****申请人及其总部将在以下研究项目中使用所需的热分析设备：（1）纳米层聚合物薄膜，（2）聚合物发泡，（3）原位纳米原纤化聚合物复合材料，以及（4）热喷涂涂层。这些研究项目代表了具有快速加热和冷却速率的先进制造工艺，这是传统 DSC 无法复制的。收购该 Flash DSC 设备将有助于开展高影响力的研究，有助于为这些工业流程提供信息和优化。这项研究对于发展加拿大先进制造业非常有价值，并为加拿大提高其在该领域的全球影响力和专业知识提供了途径。 **