Enhanced Electromagnetic Interference Shielding in a Au-MWCNT Composite Nanostructure Dispersed PVDF Thin Films

被引：89

作者：

Kumaran, R. ^{[1
]}

Kumar, S. Dinesh ^{[2
]}

Balasubramanian, N. ^{[1
]}

Alagar, M. ^{[1
]}

Subrarnanian, V. ^{[2
]}

Dinakaran, K. ^{[3
]}

机构：

[1] Anna Univ, Dept Chem Engn, Madras 600025, Tamil Nadu, India

[2] Indian Inst Technol, Dept Phys, Madras 600036, Tamil Nadu, India

[3] Thiruvalluvar Univ, Dept Chem, Vellore 632115, Tamil Nadu, India

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2016年 / 120卷 / 25期

关键词：

MULTIWALLED CARBON NANOTUBES; MICROWAVE-ABSORPTION; POLY(VINYLIDENE FLUORIDE); MECHANICAL-PROPERTIES; MAGNETIC-PROPERTIES; NANOCOMPOSITES; POLYANILINE; NANOPARTICLES; PROPERTY; SURFACE;

D O I：

10.1021/acs.jpcc.6b01333

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Electromagnetic interference (EMI) shielding effectiveness and conductivities in a flexible conducting polymer composite film, prepared via a simple solvent cast method, of PVDF incorporated with Au-MWCNT are studied. The scanning electron microscopic analysis showed that the Au-loaded MWCNT uniformly dispersed in PVDF. The HRTEM images show that Au nanoparticles having a particle size of 20-30 nm have been deposited on the nodes of the MWCNT. The values of dielectric constant were found to be 12.11 and 13.89 at 1 MHz upon the incorporation of 1 and 3 wt % MWCNT in PVDF. The impedance and electromagnetic interference shielding effectiveness studies reveal that the polymer nanocomposites possess enhanced conductivity of 1.12 x 10(-4) S/cm at 1 MHz, minimum return loss of 4.4 dB, and effective electromagnetic shielding of 26.7 dB at 12 GHz for 3 wt % Au NPs in 3 wt % MWCNT/PVDF thin film.

引用

页码：13771 / 13778

页数：8

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