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http://dx.doi.org/10.7234/composres.2015.28.4.232

Prediction of Wetting and Interfacial Property of CNT Reinforced Epoxy on CF Tow Using Electrical Resistance Method  

Kwon, Dong-Jun (Department of Materials Science and Convergence Technology, Engineering Research Institute, Gyeongsang National University)
Choi, Jin-Yeong (Department of Materials Science and Convergence Technology, Engineering Research Institute, Gyeongsang National University)
Shin, Pyeong-Su (Department of Materials Science and Convergence Technology, Engineering Research Institute, Gyeongsang National University)
Lee, Hyung-Ik (Agency for Defense Development)
Lee, Min-Gyeong (Agency for Defense Development)
Park, Jong-Kyoo (Agency for Defense Development)
Park, Joung-Man (Department of Materials Science and Convergence Technology, Engineering Research Institute, Gyeongsang National University)
Publication Information
Composites Research / v.28, no.4, 2015 , pp. 232-238 More about this Journal
Abstract
As a new method to predict the degree of dispersion in carbon nanocomposites, the electrical resistance (ER) method has been evaluated. After CNT epoxy resin was dropped on CF tow, the change in electrical resistance of carbon fiber tow was measured to evaluate dispersion condition in CNT epoxy resin. Good dispersion of CNTs in carbon nanocomposite exhibited low change in ER due to wetted resin penetrated on CF tow. However, because CNT network was formed among CFs, non-uniform dispersion occurred due to nanoparticle filtering effect by CF tow. The change in ER for poor dispersion exhibited large ER signal change. The change in ER was used for the dispersion evaluation of CNT epoxy resin. Correlation between interlaminar shear strength (ILSS) and dispersion condition by ER method was established. Good CNT dispersion in nanocomposites led to good interfacial properties of fiberreinforced nanocomposites.
Keywords
Electrical resistance method; Carbon nanotube; Dispersion; Carbon fiber tow;
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Times Cited By KSCI : 3  (Citation Analysis)
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