GRAPHERGIA Poster: Reduced Graphene Oxide & CFRP's Maximized Properties: An Ιnvestigative Overview

CONCLUSIONS 1Adamant Composites Ltd., Aghias Lavras and Stadiou St., GR-26504, Rio-Patras, Greece 2Foundation for Research and Technology –Hellas, Institute of Chemical Engineering Sciences (FORTH/ICE–HT), GR26504, Rio-Patras, Greece 3Department of Chemistry, University of Patras, GR-26504, Rio-Patras, Greece Spyros Tsiotos1, Chrysanthi Paparouni1, Despoina I. Batsouli1, Antonios Vavouliotis1, Natalia Kantouni2, Spyros N. Yannopoulos2,3 BACKGROUND …. Acknowledgements: This work is funded by the European Union under Horizon Europe Programme. Project: GRAPHERGIA (Grant Agreement n. 101120832). Website: https://graphergia.eu/ Reduced Graphene Oxide & CFRP’s Maximized Properties: An Ιnvestigative Overview ▪Asingle-step, eco-friendly technique for depositing high-quality graphene utilizing laser-assisted methods was established. ▪This technique resulted in the direct formation of nano-doped CFRP laminates. RAW MATERIALS CONCLUSIONS QUESTION ▪UD and Plain-Weaved CF fabrics ▪GO water dispersion (0.4 wt%) by Graphenea RESULTS Representative Raman spectra of rGO on CFRP prepregs by direct laser-assisted reduction & SEM imaging of rGO textile fibers Graphene production remains costly, intricate, and limited in scale, with most methods relying on chemically derived powders that are not water-soluble and lack environmental sustainability. In contrast, Carbon Fiber Reinforced Polymers (CFRPs) are already established in aerospace and space applications. Graphene oxide (GO) offers a more accessible precursor, deposited onto CFRP fabrics by wet-chemistry methods and reduced by laser processing, forming reduced graphene oxide (rGO) with a graphenic structure. In this study, we introduce an environmentally friendly technique for depositing high-quality graphene employing laser-assisted methods. Graphene layer DG2D Future developments in graphene research raise questions regarding whether production could become more economical, simple,and scalable. Incorporating graphene into CFRPs could provide significant benefits, including enhanced mechanical performance as a nanodopant as well as improvements in electrical properties and production processes. Potential strategies for intermixing include roll-to-roll processing, in-house fabrication of prepregs with graphene oxide (GO), and laser-based reduction of GO to rGO, enabling the formation of a graphenic structure. ▪SEM ▪Raman ▪Thermal Conductivity ▪DMA ▪Mechanical Testing CHARACTERIZATION 700 1050 1400 1750 2100 2450 2800 3150 3500 Raman intensity (a.u.) Raman shift (cm-1) 6 J Mechanical & Material properties Energy Generation ▪The developed TENG demonstrated FUTURE PROSPECTS ▪Implementation of rGO-CFRP TENGs in real life scenarios could provide: oSelf sufficient power generation oSelf sufficient fault detection ▪Implementation of rGO-doped CFRPs in in field scenarios could provide: oRefinement of mechanical properties oIncrease of durability and reliability in assorted structures Minimal increase of cost in the process provides maximal increase in properties and promise CFRP: Tribo-Positive material Graphene: Tribo-Negative material Both function as electrodes → Touch & Separation → Charge difference → Power TENG rGO nano-doping → 16% increase of 5.9 GPa Addition of rGO to the CFRP laminates → 2.8% increase of 4.5 oC Could CFRP’s benefit from Graphene? ❑Mechanical performance ❑Electric Properties & Production Could Graphene production be? ❑Volume efficient ❑Economic ❑Simpler Possible Intermixing? ❑R2R Lines ❑In-house Prepregs with GO ❑Laser-based GO to rGO reduction Graphene Production: ❑Expensive ❑Limited quantities ❑Intricate CFRP Usability: ❑Aerospace ❑Space GO:Easily attainable GO + LASER: rGO → Graphenic Structure PROCESS OVERVIEW A C B [1] SuarezRioja, K. (2020, October 22). Streamline GVT and flutter certification - get to the first flight faster - Simcenter. Simcenter. [2https://www.shutterstock.com/search/batte ry-life-icon?image_type=vector&page=15 while also possessing both flexibility and durability. highly favorable energy harvesting properties suitable for electromechanical energy conversion,