Lightweight multi-walled carbon nanotube buckypaper/glass fiber–epoxy composites for strong electromagnetic interference shielding and efficient microwave absorption

Multi-walled carbon nanotube buckypaper (BP) reinforced glass fiber–epoxy (GF/EP) composites were selected to fabricate electromagnetic interference (EMI) shielding and microwave absorbing materials. Six different composite configurations with 3.0 mm thick have been conceived tested over the X-band (8.2–12.4 GHz). Flexible low-density (0.29 g/cm3) BP provided a high specific EMI SE of 76 dB controlled electrical conductivity. GF/EP/BP111 GF/EP/BP101 possess as 50–60 dB, which can be attributed number inserted variation in wave-transmitting layer laminates. Furthermore, mechanism was discussed suggested that absorption dominant contribution SE. GF/EP/BP110 laminate demonstrated suitable performance (~ 20 dB), whereas GF/EP/BP011 revealed excellent performance, achieving an effective ? 10 bandwidth 3.04 GHz minimum reflection loss (RL) value 21.16 at 10.37 GHz. On basis these results, GF/EP/BP prepared this work potential applications both absorber materials given their facile preparation lightweight use.