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Chin. Phys. B, 2013, Vol. 22(9): 096201    DOI: 10.1088/1674-1056/22/9/096201
CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES Prev   Next  

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

Wei Lai (卫来)a b, Zhou Heng-Wei (周恒为)a b, Zhang Li (张丽)a, Huang Yi-Neng (黄以能)a b
a National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China;
b Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matters, College of Physical Science and Technology, Yili Normal University, Yining 835000, China
Abstract  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.
Keywords:  mechanical spectroscopy      chemical reaction      acrylic structural adhesive  
Received:  13 January 2013      Revised:  18 April 2013      Accepted manuscript online: 
PACS:  62.40.+i (Anelasticity, internal friction, stress relaxation, and mechanical resonances)  
  62.20.de (Elastic moduli)  
  82.30.-b (Specific chemical reactions; reaction mechanisms)  
  34.50.Lf (Chemical reactions)  
Fund: Project 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), and the West-Light Foundation of the Chinese Academy of Sciences (Grant No. RCPY200906).
Corresponding Authors:  Huang Yi-Neng     E-mail:  ynhuang@nju.edu.cn

Cite this article: 

Wei Lai (卫来), Zhou Heng-Wei (周恒为), Zhang Li (张丽), Huang Yi-Neng (黄以能) The application of reed-vibration mechanical spectroscopy for liquids to detect chemical reactions of an acrylic structural adhesive 2013 Chin. Phys. B 22 096201

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