Thermomechanical and electrical properties of multiwalled carbon nanotubes (MWCNTs) bucky paper reinforced epoxy laminar composites have been studied. Incorporation of bucky paper in epoxy matrix led to improvement in thermomechanical properties but it reduced through-plane electrical conductivity. Therefore, 0.05 wt.% of MWCNTs is incorporated as secondary network in epoxy matrix to improve the electrical conductivity. The storage modulus for a 0.05 wt.% dispersed MWCNTs in epoxy resin impregnated 20 plies of bucky paper based composites (20Ply.05) was 4.84 GPa as compared to 2.24 GPa of pure epoxy. The glass transition temperature of 20Ply.05 laminar composite reaches to 191.6 °C as compared to pure epoxy (168.5 °C). The increment in electrical conductivity (792%) is reflected in improved electromagnetic shielding effectiveness (SE) over a wide frequency range of X & Ku band. The SE of more than 50 dB for 20Ply.05 laminar composite in both the bands was obtained.

研究了多壁碳纳米管（MWCNT）巴基纸增强环氧层流复合材料的热机械和电性能。在环氧树脂基体中掺入布基纸可以改善热机械性能，但会降低贯穿面的电导率。因此，将0.05重量％的MWCNT作为次级网络并入环氧基质中以改善导电性。在浸渍了20层布基纸基复合材料（20Ply.05）的环氧树脂中，0.05 wt。％分散的MWCNT的储能模量为4.84 GPa，而纯环氧树脂为2.24 GPa。与纯环氧树脂（168.5°C）相比，20Ply.05层状复合材料的玻璃化转变温度达到191.6°C。电导率的增加（792％）反映在X和Ku频段的较宽频率范围内电磁屏蔽效率（SE）的提高。对于两个频带中的20Ply.05层状复合材料，SE均大于50 dB。