Characterization of Fast Adhesive Curing Reactions—A Novel Experimental Setup
Characterization of Fast Adhesive Curing Reactions—A Novel Experimental Setup
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DOI：
10.1007/978-3-030-87668-5_4
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
Sarah Glaser;E. Stammen;K. Dilger
中科院分区：
文献类型：
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作者：
Sarah Glaser;E. Stammen;K. Dilger
对加快胶粘剂应用过程的需求推动了快速固化胶粘剂的发展。在为某一应用选择某种粘合剂时，通常会进行各种测试，以确定其特性。特别是不同加热条件下的力学性能及其发展。常用的分析方法只能提供快速固化胶粘剂的限量信息。这促使了一种新的实验装置的开发，使其能够在高升温速率下进行流变学测量。这一贡献定义了对这种新颖设置的要求。选择感应加热，以利于快速升温。此外，还评估了不同材料的加热性能及其作为测量部件的用途。由于所选的温度传感器类型和位置，可实现实时温度控制。这项研究开发了可以安装在现代流变仪上的加热单元的设计。此外，还研究了快速加热对测量精度的影响。确定了两个主要因素：快速升温对测量几何的热膨胀和扭转柔度的影响。
The desire to accelerate adhesive application processes drives the development of rapid curing adhesives. When selecting a certain adhesive for an application, typically a variety of tests is performed in order to characterize its properties. Especially, the mechanical properties and their development under different heating conditions are of interest. Commonly used analytical methods only provide limit information for rapid curing adhesives. This motivates the development of a new experimental setup enabling rheological measurements at high heating rates. This contribution defines requirements for such a novel setup. Induction heating is chosen to facilitate rapid temperature increase. Further, different materials are evaluated for their heating performance and their use for measurement components. A real-time capable temperature control is enabled due to the selected temperature sensor types and positioning. This study develops the design of heating units which can be mounted on a modern rheometer. Additionally, the impact of rapid heating on the measurement accuracy is investigated. Two major factors are identified: the influence of rapid temperature increase on the thermal expansion of the measurement geometry and on the torsional compliance.