Graphene has generated substantial interest as a filler due to its exceptional strength, flexibility, and conductivity but faces obstacles in supply and implementation. A renewable, plant-based graphene nanoparticle (pGNP) presents a more accessible filler with the same properties as mineral graphenes. In this study, we examine the effects of pGNP, which was sprayed on a carbon fiber/epoxy prepreg at loadings from 1.1 to 4.2 g/m2. The study considered the mechanical, thermal, and electrical properties of pGNP-composite. An even particle dispersion was achieved using a spray application of pGNP in a water/alcohol suspension with the addition of surfactants and dispersion aides. Results show that pGNP addition increases flexural modulus 15%, flexural strength 17%, interlaminar shear strength 17%, and mode I fracture toughness by 146%, as well as increases electrical conductivity 294% and thermal conductivity 24%, with these improvements observed at 1.1–2.3 g/m2 spray loadings.
© 2022 The Authors.
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Original Publication Citation
Mulqueen, D. W., Sattar, S., Le, T., & Kravchenko, O. G. (2022). Spray deposition of sustainable plant based graphene in thermosetting carbon fiber laminates for mechanical, thermal, and electrical properties. Polymer Composites, 43(12), 8696-8714. https://doi.org/10.1002/pc.27051
0000-0002-4314-2688 (Mulqueen), 0000-0001-5175-8696 (Sattar), 0000-0002-8573-7540 (Kravchenko)
Mulqueen, Daniel W.; Sattar, Siavash; Le, Thienan; and Kravchenko, Oleksandr G., "Spray Deposition of Sustainable Plant Based Graphene in Thermosetting Carbon Fiber Laminates for Mechanical, Thermal, and Electrical Properties" (2022). Mechanical & Aerospace Engineering Faculty Publications. 123.