Dynamic Mechanical Analyzer for Advanced Materials Characterization

用于先进材料表征的动态力学分析仪

• 批准号: RTI-2019-00981
• 负责人: Zhu, Shiping
• 金额: $ 10.93万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=669888
• 关键词: Dynamic; Mechanical; Analyzer; Advanced; Materials

This proposal seeks funding to purchase a new Dynamic Mechanical Analyzer (DMA) to replace the decommissioned 25-year-old unit in the Chemical Engineering Department at McMaster University. Currently, there is no such instrument available at McMaster or in Hamilton. The DMA is highly functional and cost-effective instrument in materials science and engineering used for evaluating the thermomechanical properties of soft materials under static and dynamic conditions. Dynamic conditions are highly relevant to predicting the response of new materials in practical environments (temperature, humidity, vibrations); no other instrument can measure these properties under such conditions. More specifically, DMA uniquely enables quantification of how the stiffness and elasticity of materials change at varying applied frequencies and temperatures as well as the permanent deformation of soft materials under varying frequency and temperature conditions. DMA is the only instrument that enables direct evaluation of the relationship between the thermomechanical properties of a material and its structure on a molecular level, information of critical importance for researchers performing molecular simulations and attempting to correlate results with experimental data. DMA requires only small size samples and could work from low to high temperatures with customized operation modes, enabling effective simulation of the real conditions at which a material would be applied. In comparison to other related techniques such as differential scanning calorimetry and universal mechanical testing, the high accuracy and sensitivity of DMA measurements coupled with the capacity to test materials under real-life conditions provide unique functionality that cannot be replicated using other instruments. ***Access to DMA is in high demand by materials research labs at McMaster University across multiple departments working with polymeric materials, composites and blends, both for pure experimental work as well as to experimentally verify theoretical predictions of material properties and structure-property interactions. DMA is an essential analytical tool for characterizing a range of advanced materials critical for current and future Canadian markets, shape memory polymers, biomedical materials (artificial bones), edible materials for cutlery and packaging, and fuel cells, among other applications. As such, the lack of current access to DMA introduces a significant barrier to the completion of high-level and internationally competitive research projects in these critical fields to Canada's future economy. The use of DMA is also of high importance for the effective training of high-quality personnel. The lack of DMA access, coupled by its critical need for multiple ongoing projects, introduces uncertainty in the timelines for completing student theses in addition to hindering the job market competitiveness of future professionals needed for emerging market opportunities in Canada.

该提案寻求资金购买新的动态机械分析仪（DMA），以取代麦克马斯特大学化学工程系的退役25年历史的单位。目前，麦克马斯特或汉密尔顿尚无此类乐器。 DMA是用于评估静态和动态条件下软材料的热机械特性的材料科学和工程中高度功能和成本效益的仪器。动态条件与预测实际环境中新材料的响应高度相关（温度，湿度，振动）。在这种情况下，没有其他仪器可以测量这些特性。更具体地说，DMA唯一可以量化材料在不同的频率和温度下的刚度和弹性如何变化，以及在不同的频率和温度条件下软材料的永久变形。 DMA是唯一能够直接评估材料的热力学特性及其结构之间的关系的唯一工具，对于进行分子模拟的研究人员而言至关重要的信息，并试图将结果与实验数据相关联。 DMA只需要小型样品，并且可以通过定制的操作模式从低温到高温工作，从而有效地模拟了将应用材料的实际条件。与其他相关技术（例如差异扫描量热法和通用机械测试）相比，DMA测量的高精度和灵敏度以及在现实生活条件下测试材料的能力的能力提供了独特的功能，这些功能无法使用其他仪器来复制。 ***麦克马斯特大学（McMaster University）的材料研究实验室的需求量很高。多个部门使用聚合物材料，复合材料和混合物，包括纯实验性工作，以及实验性地验证材料特性和结构 - 培训相互作用的理论预测。 DMA是表征对当前和未来的加拿大市场至关重要的一系列高级材料，形状的记忆聚合物，生物医学材料（人造骨骼），用于餐具和包装的可食用材料以及燃料电池等的必不可少的分析工具。因此，目前缺乏对DMA的访问为在这些关键领域的高级和国际竞争性研究项目完成到加拿大未来经济中的完成带来了重大障碍。对于有效培训高质量人员，DMA的使用也非常重要。缺乏DMA访问，再加上其对多个正在进行的项目的迫切需求，还引入了时间表的不确定性，除了阻碍加拿大新兴市场机会所需的未来专业人士的就业市场竞争力之外，还涉及到了学生这些论文。