Flexible, Ultrathin, and High-Efficiency Electromagnetic Shielding Properties of Poly(Vinylidene Fluoride)/Carbon Composite Films

• DOI: 10.1021/acsami.7b04935
• Publication Date: 2017-05-31T00:19:50Z
• Authors: Biao Zhao; Chongxiang Zhao; Ruosong Li; S. Mahdi Hamidinejad; Chul B. Park
• Keywords: 02 engineering and technology; 0210 nano-technology

In this study, we fabricated conductive poly(vinylidene fluoride) (PVDF)/carbon composites simply by dispersing multiwalled carbon nanotubes (MWCNTs) and graphene nanoplatelets into a PVDF solution. The electrical conductivity the electromagnetic interference (EMI) shielding of PVDF/carbon were increased increasing filler amounts. Moreover, also found that EMI properties PVDF/CNT/graphene higher than those PVDF/CNT PVDF/graphene composites. mean values PVDF/5 wt %-CNT, PVDF/10 %-graphene, composite films with thickness 0.1 mm 22.41, 18.70, 27.58 dB, respectively. An analysis mechanism showed main contribution to came from absorption mechanism, could be tuned controlling films' thickness. total 21.90 36.46 dB as was 0.06 0.25 mm. particular, films, mm, achieved highest specific 1 310 cm2/g for %-CNT 557 composite, This due ultrathin Our study provides groundwork an effective way design flexible, polymer film application in miniaturized electronic devices.