Spray Deposition of Plant-Based Graphene in Carbon Fiber Laminate for Electromagnetic Attenuation

Carbon fiber reinforced plastics (CFRP) have emerged as a promising material in aircraft structural components due to their remarkable combination of high strength and low weight. However, challenges such as electromagnetic interference (EMI) shielding and lightning strike protection (LSP) have necessitated the use of additional materials, often relying on aluminium meshes. The latest advancement in this field introduces a novel approach—utilizing a renewable and plant-based graphene nanoparticle (pGNP) suspension. This innovation represents a groundbreaking alternative to conventional mineral graphene, offering not only comparable properties but also a more environmentally friendly solution. Through measurement of the reflectance (S11), we characterize the pGNP based material of its absorption effectiveness, and the tested material showed a good ability to absorb microwaves.