scholarly journals Development of Multi-Functional Graphene Polymer Composites Having Electromagnetic Interference Shielding and De-Icing Properties

Polymers ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2101 ◽  
Author(s):  
Ji-Hwan Ha ◽  
Soon-Kook Hong ◽  
Jae-Kwan Ryu ◽  
Joonwon Bae ◽  
Sung-Hoon Park
Keyword(s):  
Electromagnetic Interference ◽  
Filler Content ◽  
Electrical Heating ◽  
Two Dimensional ◽  
High Electrical Conductivity ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Graphene Composite ◽  
Heating Performance ◽  
Shielding Properties

We developed a multi-functional graphene composite with electromagnetic interference (EMI) shielding and de-icing properties. Two-dimensional graphene fillers were homogeneously dispersed in a polymer by three-roll milling. The electrical properties and percolation threshold of the graphene composites were measured with various graphene contents. The variation in the EMI shielding properties of the graphene composites with respect to the filler content was measured. The shielding efficiency improved with increasing graphene filler content. Furthermore, we conducted electrical heating tests on the graphene composites. The composites could be heated rapidly to 200 °C by electrical Joule heating with low electric power because of the high electrical conductivity of the composite. Moreover, the composite film was suitable for application in a de-icing unit because of its rapid and homogenous heating performance.

scholarly journals Electromagnetic interference shielding cotton fabrics with high electrical conductivity and electrical heating behavior via layer-by-layer self-assembly route

RSC Advances ◽  
2017 ◽  
Vol 7 (68) ◽  
pp. 42641-42652 ◽  
Author(s):  
Mingwei Tian ◽  
Minzhi Du ◽  
Lijun Qu ◽  
Shaojuan Chen ◽  
Shifeng Zhu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Electromagnetic Interference ◽  
Cotton Fabrics ◽  
Electrical Heating ◽  
Layer By Layer ◽  
High Electrical Conductivity ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Shielding Properties ◽  
Heating Behavior

In our paper, multi-functional cotton fabrics with electrical and electromagnetic interference (EMI) shielding properties via layer-by-layer (LbL) electrostatic self-assembly approach were prepared.

Manipulating the Assembly of the CNC/RGO Composite Film for Superior Electromagnetic Interference Shielding Properties

2021 ◽  
Author(s):  
kexia Jin ◽  
Jianxiong Xing ◽  
Xinge Liu ◽  
Zehui Jiang ◽  
Shumin Yang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Cellulose Nanocrystals ◽  
Electromagnetic Interference ◽  
Practical Application ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
High Mechanical Strength ◽  
Dispersing Agent ◽  
Reduced Graphene ◽  
Shielding Properties

To achieve high mechanical strength electromagnetic interference (EMI) shielding materials for practical application, cellulose nanocrystals (CNC) as a reinforcing and dispersing agent, are intercalated into reduced graphene oxide (RGO) layers,...

Incorporating a microcellular structure into PVDF/graphene–nanoplatelet composites to tune their electrical conductivity and electromagnetic interference shielding properties

2018 ◽  
Vol 6 (38) ◽  
pp. 10292-10300 ◽  
Author(s):  
Biao Zhao ◽  
Chongxiang Zhao ◽  
Mahdi Hamidinejad ◽  
Chongda Wang ◽  
Ruosong Li ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Electromagnetic Interference ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Graphene Nanoplatelet ◽  
Shielding Properties

The electrical conductivity and the EMI shielding properties could be effectively tuned by the foaming degree.

Cobaltosic oxide fiber/Carbon Fiber composites fabricated by hydrothermal for improved electromagnetic interference shielding properties

2019 ◽  
Vol 33 (09) ◽  
pp. 1950075
Author(s):  
Ming Gong ◽  
Qiang Li ◽  
Lin Sun ◽  
Ai-Qin Tian ◽  
Shou-Guang Sun
Keyword(s):  
Carbon Fiber ◽  
Electromagnetic Interference ◽  
Fiber Composites ◽  
Interface Strength ◽  
Carbon Fiber Composites ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Calcination Step ◽  
Cobaltosic Oxide ◽  
Shielding Properties

In this paper, a newly designed composite of magnetic nano-Co3O4 fiber coated on carbon fiber (Cf) is prepared and characterized for the electromagnetic interference (EMI) shielding properties. XRD, SEM and TEM are used to investigate the micromorphology and microstructure evolution during the preparation. By hydrothermal method, the flowerlike clusters of single crystal flake-Co(OH)2 are first obtained on Cf. The firstly prepared Co(OH)2 sheets then turn into Co3O4 fibers during the next calcination step. The continuous and loose coating of magnetic Co3O4 nanofibers is finally obtained on the Cf. The loose coating is in proportion to the weight loss, and the wirelike Co3O4 is good for the interface strength for the Cf composite preparation. Based on the above work, the loose magnetic fibers coating on the Cf could be a feasible composite structure for the EMI composite materials integrated with absorbing and reflecting.

scholarly journals Dependence of electromagnetic interference shielding ability of conductive polymer composite foams with hydrophobic properties on cellular structure

2020 ◽  
Vol 8 (22) ◽  
pp. 7401-7410 ◽  
Author(s):  
Biao Zhao ◽  
Ruoming Wang ◽  
Yang Li ◽  
Yumei Ren ◽  
Xiao Li ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Electromagnetic Interference ◽  
Cellular Structure ◽  
Conductive Polymer ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Hydrophobic Properties ◽  
Conductive Polymer Composites ◽  
Composite Foams ◽  
Shielding Properties

The introduction of a cellular structure in conductive polymer composites is supposed to be an effective way to ameliorate the electromagnetic interference (EMI) shielding properties.

scholarly journals MXene interlayered crosslinked conducting polymer film for highly specific absorption and electromagnetic interference shielding

2020 ◽  
Vol 1 (2) ◽  
pp. 177-183 ◽  
Author(s):  
Pritom J. Bora ◽  
Amith G. Anil ◽  
Praveen C. Ramamurthy ◽  
Daniel Q. Tan
Keyword(s):  
Polymer Film ◽  
Conducting Polymer ◽  
Electromagnetic Interference ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Specific Absorption ◽  
Styrene Sulfonate ◽  
Shielding Properties ◽  
Poly Styrene Sulfonate

In this work, the electromagnetic interference (EMI) shielding properties of an MXene interlayered crosslinked conducting poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) polymer film are investigated.

Electromagnetic Interference Shielding Properties of Carbon Nanotubes Reinforced Composites

2007 ◽  
Vol 26-28 ◽  
pp. 305-308 ◽  
Author(s):  
Tae Wan Kim ◽  
Hye Rim Lee ◽  
Sung Soo Kim ◽  
Yun Soo Lim
Keyword(s):  
Carbon Nanotubes ◽  
Electromagnetic Interference ◽  
Electromagnetic Properties ◽  
Chemical Vapor Deposition Method ◽  
Strip Line ◽  
Reinforced Composites ◽  
Shielding Effectiveness ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Shielding Properties

Electromagnetic interference (EMI) shielding refers to the reflection and/or adsorption of electromagnetic radiation by materials, which acts as a shield against the penetration of the radiation through the shield. In this study, two directional carbon fibers reinforced composites with carbon nanotubes as fillers were studied for the high frequency electromagnetic properties and mechanical properties. Carbon nanotubes were prepared by a catalytic chemical vapor deposition method with ferrocene/xylene mixture. The electromagnetic insulating properties were measured by micro strip line method in this study. Electromagnetic interference shielding properties of composites were investigated in the frequency region of 0.3-6 GHz. The experimental results indicated that the EMI shielding effectiveness of carbon composite is sensitive to the existence of CNT.

scholarly journals Green and facile approach to prepare polypropylene/in situ reduced graphene oxide nanocomposites with excellent electromagnetic interference shielding properties

RSC Advances ◽  
2018 ◽  
Vol 8 (53) ◽  
pp. 30412-30428 ◽  
Author(s):  
Gejo George ◽  
Sanu Mathew Simon ◽  
Prakashan V. P. ◽  
Sajna M. S. ◽  
Muhammad Faisal ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electromagnetic Interference ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Green Route ◽  
Reduced Graphene ◽  
Shielding Properties

Fabrication of PP/in situ reduced GO nanocomposites with excellent EMI shielding capability realized via a facile and green route.

scholarly journals Robust, flexible, and high-performance electromagnetic interference shielding films with long-lasting service

RSC Advances ◽  
2021 ◽  
Vol 11 (30) ◽  
pp. 18476-18482
Author(s):  
Licui Wang ◽  
Zhaoxin Xie ◽  
Yanhu Zhan ◽  
Xuehui Hao ◽  
Yanyan Meng ◽  
...  
Keyword(s):  
Electromagnetic Interference ◽  
High Performance ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding

It is of great significance for electromagnetic interference (EMI) shielding materials to fulfill long-lasting service requirements.

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