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. **

差异扫描量热法（DSC）是材料科学和工程领域中使用最广泛的表征方法之一。尽管它提供了宝贵的见解，但常规的DSC设备仅限于1-200 K/min之间的加热/冷却速率。这远低于制造过程中材料实际经历的利率。实际工业过程中的材料，例如注入成型，纤维纺丝，热喷涂涂料以及泡沫体验经验快速加热和冷却104至106 k/min，远远超出了常规DSC的测试范围。 ****由于这种限制，在这些过程中材料的结构发展存在很大的知识差距。材料结构和分子组织的演变非常取决于冷却速率。这种结构发展反过来显着影响材料的性质和性能。为了弥合PI和Co-Pis研究过程的知识差距，我们要求使用Flash DSC设备进行超快速扫描工程材料的超快速扫描量热法。 Flash DSC是由Mettler Toledo提供的高级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，加拿大尚无此类设备。******申请人及其HQP将在以下研究计划中使用请求的设备进行热分析：（1）纳米层聚合物膜，（2）聚合物泡沫，（3）含量纳米纤维纤维组合物，（3）含量纳米纤维纤维组合物，以及（4）热喷涂涂料。这些研究计划代表了具有快速供暖和冷却速率的高级制造工艺，在常规DSC中无法复制。该Flash DSC设备的获取将允许高影响研究，以帮助并优化这些工业流程。这项研究将在发展加拿大的先进制造业方面非常有价值，并为加拿大增加其在该领域的全球影响和专业知识提供途径。 **