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首页> 外文期刊>Journal of Applied Polymer Science >Mechanical and chemical stability of injection-molded microcantilevers used for sensing
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Mechanical and chemical stability of injection-molded microcantilevers used for sensing

机译：用于传感的注塑微悬臂梁的机械和化学稳定性

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摘要

Ultraviolet-ozone treatment is used as a standard surface cleaning procedure for removal of molecular organic contamination from analytical and sensing devices. Here, it is applied for injection-molded polymer microcantilevers before characterization and sensing experiments. This article examines the effects of the surface cleaning process using commercial equipment, in particular on the performance and mechanical properties of the cantilevers. It can be shown that the first chemical aging process essentially consist of the cross linking of the polymer chains together with a physical aging of the material. For longer exposure, the expected thermo-oxidative formation of carbonyl groups sets in and an exposure dependent chemical degradation can be detected. A process time of 20 min was found suitable as a trade-off between cleaning and stability.
机译：紫外线臭氧处理被用作标准的表面清洁程序，用于去除分析和传感设备中的分子有机污染物。在这里，它用于表征和传感实验之前的注塑聚合物微悬臂梁。本文研究了使用商用设备进行的表面清洁过程的影响，尤其是对悬臂梁的性能和机械性能的影响。可以看出，第一化学时效过程主要包括聚合物链的交联以及材料的物理时效。对于更长的暴露时间，羰基的预期热氧化形成开始，并且可以检测到依赖于暴露的化学降解。发现20分钟的处理时间适合在清洁和稳定性之间进行权衡。

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