Replacement and new thermo-mechanical instruments for polymer characterization

用于聚合物表征的替代和新型热机械仪器

• 批准号: 390884-2010
• 负责人: Sullivan, Pearl
• 金额: $ 10.87万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2009
• 资助国家: 加拿大
• 起止时间: 2009-01-01 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=443314
• 关键词: Replacement; new; thermo; mechanical; instruments

The Department of Mechanical and Mechatronics Engineering currently houses a Dynamic Mechanical Analyzer (DMA) purchased through the assistance of a NSERC RTI grant in 1996. For 12 years, the instrument provided test data to dozens of students and research staff who needed to study polymer mechanical behaviour as a function of temperature. The basic instrument can measure mechanical properties, creep and stress relaxation response and identify molecular relaxation transitions. It is, however, no longer in working condition even after multiple repair attempts to restore it. The present proposal requests funds to replace the machine and also to purchase a Thermomechanical Analyzer (TMA) to complement the DMA. The TMA measures dimensional change in thin samples. As the dimensions of engineering components shrink due to miniaturization of devices, there is a growing demand for better understanding of dimensional stability of thin plastic parts and films. In addition to the instruments, accessories that will allow tests to be conducted in controlled heat-humidity environments as well as full submersion in water have been requested. These new capabilities have only been recently introduced into the market; a signal that the polymer industry is requiring more accurate data from tests that more closely represent in-service conditions.

机械和机电一体化工程系目前拥有通过NSERC RTI赠款援助于1996年购买的动态机械分析仪（DMA）。12年来，该仪器为数十名需要研究聚合物力学行为随温度变化的学生和研究人员提供了测试数据。基本仪器可以测量机械性能、蠕变和应力松弛响应，并识别分子松弛转变。 然而，即使经过多次修理试图恢复，这台机器也不再处于工作状态，本提案要求提供资金，以更换这台机器，并购买一台热机械分析仪，以补充热机械分析仪。TMA测量薄样品的尺寸变化。随着设备小型化，工程部件的尺寸缩小，人们对更好地了解薄塑料零件和薄膜的尺寸稳定性的需求越来越大。除仪器外，还要求提供允许在受控的热湿环境中以及完全浸没在水中进行试验的附件。这些新功能最近才被引入市场;这表明聚合物行业需要更准确的测试数据，更接近地代表使用条件。