| Autor: |
Semitekolos D; Research Lab of Advanced, Composite, Nano-Materials and Nanotechnology (R-NanoLab), School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou, GR-15780 Athens, Greece., Konstantopoulos G; Research Lab of Advanced, Composite, Nano-Materials and Nanotechnology (R-NanoLab), School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou, GR-15780 Athens, Greece., Trompeta AF; Research Lab of Advanced, Composite, Nano-Materials and Nanotechnology (R-NanoLab), School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou, GR-15780 Athens, Greece., Jones C; The Welding Institute, Granta Park Great Abington, Cambridge CB21 6AL, UK., Rana A; The Welding Institute, Granta Park Great Abington, Cambridge CB21 6AL, UK., Graham C; The Welding Institute, Granta Park Great Abington, Cambridge CB21 6AL, UK., Giorcelli M; Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, Italy., Tagliaferro A; Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, Italy., Koumoulos EP; Research Lab of Advanced, Composite, Nano-Materials and Nanotechnology (R-NanoLab), School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou, GR-15780 Athens, Greece.; Innovation in Research & Engineering Solutions (IRES), Rue Koningin Astridlaan 59B, 1780 Wemmel, Belgium., Charitidis CA; Research Lab of Advanced, Composite, Nano-Materials and Nanotechnology (R-NanoLab), School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou, GR-15780 Athens, Greece. |
| Abstrakt: |
The present study focuses on the effect of two novel carbon fibre surface treatments, electropolymerisation of methacrylic acid and air pressure plasma, on the mechanical properties and structural integrity of carbon-fibre-reinforced composites under operational conditions. Extensive mechanical testing was applied, both in nano- and macro-scale, to assess the performance of the composites and the interphase properties after ultraviolet/humidity weathering. The results of the mechanical assessment are supported by structure, surface, and chemistry examination in order to reveal the failure mechanism of the composites. Composites with the electropolymerisation treatment exhibited an increase of 11.8% in interlaminar shear strength, while APP treatment improved the property of 23.9%, rendering both surface treatments effective in increasing the fibre-matrix adhesion. Finally, it was proven that the developed composites can withstand operational conditions in the long term, rendering them suitable for a wide variety of structural and engineering applications. |
