The application of reed-vibration mechanical spectroscopy for liquids to detect chemical reactions of an acrylic structural adhesive  

作　　者：卫来 周恒为 张丽 黄以能 

机构地区：[1]National Laboratory of Solid State Microstructures,School of Physics,Nanjing University [2]Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matters,College of Physical Science and Technology,Yili Normal University

出　　处：《Chinese Physics B》2013年第9期512-515,共4页中国物理B（英文版）

基　　金：supported by the Natural Science Foundations of Xinjiang Automatic Region, China (Grant Nos. 200821104, 2009211B16, and 2010211B16);the Support Program of Science and Technology of Xinjiang Automatic Region, China (Grant No. 201091112);the West-Light Foundation of the Chinese Academy of Sciences (Grant No. RCPY200906)

摘　　要：There remain a number of unsolved problems about chemical reactions, and it is significant to explore new detection methods because they always offer some unique information about reactions from new points of view. For the first time, the solidification course of a modified two-component acrylic structural adhesive is measured by using reed-vibration mechanical spectroscopy for liquids （RMS-L） in this work, and results show that there are four sequential processes of mechanical spectra with time. The in-depth analyses indicate that RMS-L can detect in real-time the generation and disappearance of active free radicals, as well as the chemical cross-link processes in the adhesive. This kind of real-time detection will undoubtedly facilitate the study of the chemical reaction dynamics controlled by free radicals.There remain a number of unsolved problems about chemical reactions, and it is significant to explore new detection methods because they always offer some unique information about reactions from new points of view. For the first time, the solidification course of a modified two-component acrylic structural adhesive is measured by using reed-vibration mechanical spectroscopy for liquids （RMS-L） in this work, and results show that there are four sequential processes of mechanical spectra with time. The in-depth analyses indicate that RMS-L can detect in real-time the generation and disappearance of active free radicals, as well as the chemical cross-link processes in the adhesive. This kind of real-time detection will undoubtedly facilitate the study of the chemical reaction dynamics controlled by free radicals.

关 键 词：mechanical spectroscopy chemical reaction acrylic structural adhesive 

分 类 号：TQ430.71[化学工程]