Flexible, thin films of graphene-polymer composites for EMI shielding

被引：49

作者：

Jan, Rahim ^{[1
,4
]}

Habib, Amir ^{[1
]}

Akram, Muhammad Aftab ^{[1
]}

Ahmad, Imtiaz ^{[2
]}

Shah, Attaullah ^{[3
]}

Sadiq, Muhammad ^{[4
]}

Hussain, Akhtar ^{[4
]}

机构：

[1] Natl Univ Sci & Technol, Sch Chem & Mat Engn, Islamabad 44000, Pakistan

[2] Univ Peshawar, Dept Phys, Peshawar, KPK, Pakistan

[3] Natl Inst Lasers & Optron NILOP, Islamabad 44000, Pakistan

[4] Ctr Excellence Sci & Technol CESAT, Islamabad 44000, Pakistan

来源：

MATERIALS RESEARCH EXPRESS | 2017年 / 4卷 / 03期

关键词：

liquid exfoliation; graphene; EMI shielding; X-band; cyclic voltammetry; HIGH DIELECTRIC-CONSTANT; ELECTRICAL-PROPERTIES; RAMAN-SPECTROSCOPY; NANOCOMPOSITES; PERFORMANCE; LIGHTWEIGHT; NANOSHEETS; SIZE; DISPERSIONS; EXFOLIATION;

D O I：

10.1088/2053-1591/aa6351

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Liquid-phase-exfoliated, pristine graphene nanosheets (GNSs) are dispersed in thermoplastic polyurethane (TPU) to obtain free-standing conducting composite films. The composites are tested for electromagnetic interference (EMI) shielding applications in the X-band (8-12 GHz). A constant increase in the electromagnetic attenuation is observed as a function of GNS loading (0-0.12 V-f). The EMI shielding effectiveness of about 1 dB for the neat polymer is enhanced to about 14 dB at 0.12 V-f GNS as the electromagnetic energy is dissipated due to the GNS conducting network formed inside. Conducting behavior of GNS-TPU composites is confirmed by electrical conductivity measurements along with cyclic voltammetry as the band gap is reduced with a graphene increment. Scanning electron microscopy predicts a homogeneous dispersion of GNS inside composites. For such thin composite films (0.03-0.05 mm), the EMI shielding effectiveness is considerable.

引用

页数：9

共 50 条

[1] Estimating EMI shielding effectiveness of graphene-polymer composites at elevated temperatures
Jan, Rahim
Saboor, Abdul
Khan, Ahmad Nawaz
Ahmad, Imtiaz
MATERIALS RESEARCH EXPRESS, 2017, 4 (08):
[2] Transparent, flexible, and conducting films based on graphene-polymer composites
Singh, Bimal P.
Nayak, Sasmita
Nanda, Kamala K.
Singh, Anurag
Takai, Chika
Takashi, Shirai
Fuji, Masayoshi
POLYMER COMPOSITES, 2018, 39 (01) : 297 - 304
[3] EMI shielding flexible thin films based on graphene-MWCNT nanocomposites
Obreja, A. C.
Buiculescu, V.
Gavrila, R.
Comanescu, F.
Tucureanu, V.
Tutunaru, O.
Dragoman, M.
2019 INTERNATIONAL SEMICONDUCTOR CONFERENCE (CAS 2019), 42ND EDITION, 2019, : 45 - 48
[4] Graphene-polymer composites
Carotenuto, G.
Romeo, V.
Cannavaro, I.
Roncato, D.
Martorana, B.
Gosso, M.
INTERNATIONAL CONFERENCE ON STRUCTURAL NANO COMPOSITES (NANOSTRUC 2012), 2012, 40
[5] Graphene-Polymer Composites
Pinto, Artur M.
Magalhaes, Fernao D.
POLYMERS, 2021, 13 (05) : 1 - 5
[6] Tunable architecture for flexible and highly conductive graphene-polymer composites
Noel, Amelie
Faucheu, Jenny
Rieu, Mathilde
Viricelle, Jean-Paul
Bourgeat-Lami, Elodie
COMPOSITES SCIENCE AND TECHNOLOGY, 2014, 95 : 82 - 88
[7] Electrical percolation in graphene-polymer composites
Marsden, A. J.
Papageorgiou, D. G.
Valles, C.
Liscio, A.
Palermo, V.
Bissett, M. A.
Young, R. J.
Kinloch, I. A.
2D MATERIALS, 2018, 5 (03):
[8] SURFACE PROPERTIES OF GRAPHENE: RELATIONSHIP TO GRAPHENE-POLYMER COMPOSITES
Dai, Jin-Feng
Wang, Guo-Jian
Ma, Lang
Wu, Cheng-Ken
REVIEWS ON ADVANCED MATERIALS SCIENCE, 2015, 40 (01) : 60 - 71
[9] Study of the absorption coefficient of graphene-polymer composites
Zeranska-Chudek, K.
Lapinska, A.
Wroblewska, A.
Judek, J.
Duzynska, A.
Pawlowski, M.
Witowski, A. M.
Zdrojek, M.
SCIENTIFIC REPORTS, 2018, 8
[10] Graphene-polymer composites: Applications as conducting materials
Elechi, Nnenna
Olanipekun, Opeyemi
Neelgund, Gururaj
Oki, Remi
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2014, 247

← 1 2 3 4 5 →