Electrophoretic deposition of carbon nanotubes on carbon fibers
October 1-6, 2017
The surface treatment of Carbon Fibers (CFs) is essential to improve its adhesion with various matrices and as a result to enhance mechanical performance. Different approaches can be applied in order to optimize the treatment for specific fibers and applications. Apart from surface treating the various fibers, optimization is required to select appropriate treatment method or combination of methods according to application and desired properties. The scope of this work was the optimization of carbon fiber surface treatment methodology based on electrochemical treatment and deposition of nanoparticles (e.g. carbon nanotubes - CNTs) by electrophoretic deposition in order to improve adhesion between carbon fibers and resin-matrix. The functionalization of the CFs was accomplished by electrochemical treatment and subsequent electropolymerization onto them. Regarding the electrophoretic deposition of nano-sized CNTs on the CFs we performed firstly tests in order to find suitable solvents for the preparation of stable suspensions of the CNTs. This was done my measuring the ζ-potential of the suspensions as a function of concentration and time. Further we have estimated the particle size distribution of the suspended CNTs. Electrophoretic deposition tests have been performed by depositing the suspended CNTs on carbon fibers, felts or clothes. The resulted composite samples have been characterized using mechanical and surface characterization techniques such as interface push-out, HR-SEM, Transmission Electron Microscopy and Atomic Force Microscopy.
This work has partially received funding from the European Union’s Horizon 2020 Research & Innovation Programme MODCOMP under grant agreement No 685844.
Christos Argirusis, Elias P. Koumoulos, Constantinos A. Charitidis, Dimitrios A. Dragatogiannis, and Georgia Sourkouni, "Electrophoretic deposition of carbon nanotubes on carbon fibers" in "Electrophoretic Deposition VI: Fundamentals and Applications", Aldo R. Boccaccini, Institute of Biomaterials, University of Erlangen-Nuremberg, Germany Omer van der Biest, Department of Metallurgy and Materials Engineering, Katholieke Universiteit Leuven, Belgium James Dickerson, Consumer Reports, USA Tetsuo Uchikoshi, National Institute for Materials Science, Japan Eds, ECI Symposium Series, (2017). http://dc.engconfintl.org/electrophoretic_vi/12