1
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Microstructure and properties of poly(butylene terephthalate)/poly(ethylene terephthalate) composites based on carbon nanotube
s
/graphene nanoplatelet
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hybrid filler systems. J Appl Polym Sci 2022. [DOI: 10.1002/app.51733] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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2
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Electromagnetic Shielding Effectiveness and Conductivity of PTFE/Ag/MWCNT Conductive Fabrics Using the Screen Printing Method. SUSTAINABILITY 2020. [DOI: 10.3390/su12155899] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The management of the electromagnetic interference (EMI) of thin, light, and inexpensive materials is important for consumer electronics and human health. This paper describes the development of conductive films that contain a silver (Ag) flake powder and multiwall carbon nanotube (MWCNT) hybrid grid on a polytetrafluoroethylene (PTFE) film for applications that require electromagnetic shielding (EMS) and a conductive film. The Ag and MWCNT hybrid grid was constructed with a wire diameter and spacing of 0.5 mm. The results indicated that the proposed conductive films with 0.4 wt% MWCNTs had higher electromagnetic shielding effectiveness (EMSE) and electrical conductivity than those with other MWCNT loading amounts. The results also showed that the film with 0.4 wt% MWCNT loading had a high 62.4 dB EMSE in the 1800 MHz frequency and 1.81 × 104 S/cm electrical conductivity. This combination improved stretchability, with 10% elongation at a 29% resistivity change rate. Conductive films with Ag/MWCNT electronic printing or lamination technologies could be used for EMI shielding and electrically conductive applications.
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3
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Sun T, Luo W, Luo Y, Wang Y, Zhou S, Liang M, Chen Y, Zou H. Self-Reinforced Polypropylene/Graphene Composite with Segregated Structures To Achieve Balanced Electrical and Mechanical Properties. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00825] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Tong Sun
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Wei Luo
- AVIC Chengdu Aircraft Industrial (Group) Company, Ltd., Chengdu 610065, China
| | - Yinfu Luo
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Yuan Wang
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Shengtai Zhou
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Mei Liang
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Yang Chen
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Huawei Zou
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
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4
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Basheer BV, George JJ, Siengchin S, Parameswaranpillai J. Polymer grafted carbon nanotubes—Synthesis, properties, and applications: A review. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.nanoso.2020.100429] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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5
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Maya M, Abraham J, Mohammed Arif P, Moni G, George JJ, George SC, Thomas S. WITHDRAWN: A comprehensive study on the impact of RGO/MWCNT hybrid filler reinforced polychloroprene rubber multifunctional nanocomposites. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2019.12.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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6
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7
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Xu L, Zhang XP, Cui CH, Ren PG, Yan DX, Li ZM. Enhanced Mechanical Performance of Segregated Carbon Nanotube/Poly(lactic acid) Composite for Efficient Electromagnetic Interference Shielding. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b05764] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ling Xu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Xiao-Peng Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Cheng-Hua Cui
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Peng-Gang Ren
- Institute of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, China
| | - Ding-Xiang Yan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Zhong-Ming Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
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8
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Bagotia N, Choudhary V, Sharma DK. A review on the mechanical, electrical and EMI shielding properties of carbon nanotubes and graphene reinforced polycarbonate nanocomposites. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4277] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Nisha Bagotia
- Centre for Energy Studies; Indian Institute of Technology Delhi; New Delhi 110016 India
| | - Veena Choudhary
- Centre for Polymer Science and Technology; Indian Institute of Technology Delhi; New Delhi 110016 India
| | - D. K. Sharma
- Centre for Energy Studies; Indian Institute of Technology Delhi; New Delhi 110016 India
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9
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Poothanari MA, Abraham J, Kalarikkal N, Thomas S. Excellent Electromagnetic Interference Shielding and High Electrical Conductivity of Compatibilized Polycarbonate/Polypropylene Carbon Nanotube Blend Nanocomposites. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b05406] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Cauchy X, Klemberg-Sapieha JE, Therriault D. Synthesis of Highly Conductive, Uniformly Silver-Coated Carbon Nanofibers by Electroless Deposition. ACS APPLIED MATERIALS & INTERFACES 2017; 9:29010-29020. [PMID: 28708378 DOI: 10.1021/acsami.7b06526] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Noble-metal-coated carbon-based nanoparticles, when used as electrically conductive fillers, have the potential to provide excellent conductivity without the high weight and cost normally associated with metals such as silver and gold. To this effect, many attempts were made to deposit uniform metallic layers on core nanoparticles with an emphasis on silver for its high conductivity. The results so far were disheartening with the metal morphology being better described as a decoration than a coating with small effects on the electrical conductivity of the bulk particles. We tackled in this work the specific problem of electroless deposition of silver on carbon nanofibers (CNFs) with the investigation of every step of the process. We performed X-ray photoelectron spectroscopy (XPS), transmission and scanning electron microscopy (TEM, SEM), zeta potential, and electrical conductivity measurements to identify a repeatable, reliable set of parameters allowing for a uniform and fully connected silver deposition on the surface of the CNFs. The bulk particles' specific electrical conductivity (conductivity per unit mass) undergoes a more than 10-fold increase during the deposition, reaching 2500 S·cm2/g, which indicates that the added metal mass participates efficiently to the conduction network. The particles keep their high aspect ratio through the process, which enables a percolated conduction network at very low volume loadings in a composite. No byproducts are produced during the reaction so the particles do not have to be sorted or purified and can be used as produced after the short ∼15 min reaction time. The particles might be an interesting replacement to conventional fillers in isotropic conductive adhesives, as a conductive network is obtained at a much lower loading. They might also serve as electrically conductive fillers in composites where a high conductivity is needed, such as lightning strike protection systems, or as high surface area silver electrodes.
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Affiliation(s)
- Xavier Cauchy
- Department of Mechanical Engineering, École Polytechnique de Montréal , 2900 boulevard Édouard-Montpetit, Montréal, Québec H3T 1J4, Canada
| | - Jolanta-Ewa Klemberg-Sapieha
- Department of Engineering Physics, École Polytechnique de Montréal , 2900 boulevard Édouard-Montpetit, Montréal, Québec H3T 1J4, Canada
| | - Daniel Therriault
- Department of Mechanical Engineering, École Polytechnique de Montréal , 2900 boulevard Édouard-Montpetit, Montréal, Québec H3T 1J4, Canada
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11
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Chauhan SS, Verma M, Verma P, Singh VP, Choudhary V. Multiwalled carbon nanotubes reinforced poly (ether-ketone) nanocomposites: Assessment of rheological, mechanical, and electromagnetic shielding properties. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.4120] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sampat Singh Chauhan
- Centre for Polymer Science and Engineering; Indian Institute of Technology Delhi; Hauzkhas New Delhi 110016 India
| | - Meenakshi Verma
- Centre for Polymer Science and Engineering; Indian Institute of Technology Delhi; Hauzkhas New Delhi 110016 India
| | - Pawan Verma
- Centre for Polymer Science and Engineering; Indian Institute of Technology Delhi; Hauzkhas New Delhi 110016 India
| | - Vishwa Pratap Singh
- Centre for Polymer Science and Engineering; Indian Institute of Technology Delhi; Hauzkhas New Delhi 110016 India
| | - Veena Choudhary
- Centre for Polymer Science and Engineering; Indian Institute of Technology Delhi; Hauzkhas New Delhi 110016 India
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12
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Abraham J, Arif P M, Xavier P, Bose S, George SC, Kalarikkal N, Thomas S. Investigation into dielectric behaviour and electromagnetic interference shielding effectiveness of conducting styrene butadiene rubber composites containing ionic liquid modified MWCNT. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.01.078] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Maitra A, Das AK, Karan SK, Paria S, Bera R, Khatua BB. A Mesoporous High-Performance Supercapacitor Electrode Based on Polypyrrole Wrapped Iron Oxide Decorated Nanostructured Cobalt Vanadium Oxide Hydrate with Enhanced Electrochemical Capacitance. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b04449] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anirban Maitra
- Materials Science Centre, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
| | - Amit Kumar Das
- Materials Science Centre, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
| | - Sumanta Kumar Karan
- Materials Science Centre, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
| | - Sarbaranjan Paria
- Materials Science Centre, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
| | - Ranadip Bera
- Materials Science Centre, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
| | - Bhanu Bhusan Khatua
- Materials Science Centre, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
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14
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Arief I, Biswas S, Bose S. Tuning the Shape Anisotropy and Electromagnetic Screening Ability of Ultrahigh Magnetic Polymer and Surfactant-Capped FeCo Nanorods and Nanocubes in Soft Conducting Composites. ACS APPLIED MATERIALS & INTERFACES 2016; 8:26285-26297. [PMID: 27602950 DOI: 10.1021/acsami.6b07464] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Herein, we demonstrate that very high electromagnetic (EM) shielding efficiency can be achieved by dispersing nanoengineered FeCo anisometric nanostructures in a poly(vinylidene difluoride) matrix in the presence of conductive nanofillers (multiwall carbon nanotubes, MWCNTs). The FeCo nanorods (∼800 nm) and nanocubes (∼100 nm) were fabricated by a facile surfactant and polymer-assisted one-pot borohydride reduction method. The growth mechanism depicted a two-directional growth for cubes, whereas for nanorods, a unidirectional growth pattern across the (110) plane was evident. A total shielding effectiveness (SET) of -44 dB at 18 GHz was achieved for a particular combination of FeCo nanorods and MWCNT, and for nanocube-based composites, it was found to be -39 dB at 18 GHz. It was observed from zero field cooled-field cooled curves that the samples displayed room temperature ferromagnetism. An excellent correlation between high aspect ratio FeCo nanorod and superior EM absorption (89%) was explored, pertaining to the fact that nanorods possessed higher magnetic saturation (177.1 emu/g) and coercivity (550 Oe) in contrast to the nanocubes with similar composition. Furthermore, theoretical insight into the mechanism revealed a high degree of interface scattering between conductive MWCNT and magnetic loss components, giving rise to an excellent synergy between magnetic and dielectric parts.
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Affiliation(s)
- Injamamul Arief
- Department of Materials Engineering, Indian Institute of Science , Bangalore, India 560012
| | - Sourav Biswas
- Department of Materials Engineering, Indian Institute of Science , Bangalore, India 560012
| | - Suryasarathi Bose
- Department of Materials Engineering, Indian Institute of Science , Bangalore, India 560012
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15
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Wang XH, Mu YH, Tang Q, Li CQ. Preparation and Performance of PVC/CNT Nanocomposite. ADVANCES IN POLYMER TECHNOLOGY 2016. [DOI: 10.1002/adv.21674] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xiao Hua Wang
- Department of Applied Chemistry; College of Materials Science and Engineering; Chongqing Jiaotong University; Chongqing 400074 People's Republic of China
| | - Yuan Hua Mu
- Department of Applied Chemistry; College of Materials Science and Engineering; Chongqing Jiaotong University; Chongqing 400074 People's Republic of China
| | - Qi Tang
- Department of Applied Chemistry; College of Materials Science and Engineering; Chongqing Jiaotong University; Chongqing 400074 People's Republic of China
| | - Chuan Qiang Li
- Department of Applied Chemistry; College of Materials Science and Engineering; Chongqing Jiaotong University; Chongqing 400074 People's Republic of China
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16
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Biswas S, Kar GP, Bose S. Tailor-Made Distribution of Nanoparticles in Blend Structure toward Outstanding Electromagnetic Interference Shielding. ACS APPLIED MATERIALS & INTERFACES 2015; 7:25448-63. [PMID: 26512416 DOI: 10.1021/acsami.5b08333] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Engineering blend structure with tailor-made distribution of nanoparticles is the prime requisite to obtain materials with extraordinary properties. Herein, a unique strategy of distributing nanoparticles in different phases of a blend structure has resulted in >99% blocking of incoming electromagnetic (EM) radiation. This is accomplished by designing a ternary polymer blend structure using polycarbonate (PC), poly(vinylidene fluoride) (PVDF), and poly(methyl methacrylate) (PMMA) to simultaneously improve the structural, electrical, and electromagnetic interference shielding (EMI). The blend structure was made conducting by preferentially localizing the multi-wall nanotubes (MWNTs) in the PVDF phase. By taking advantage of "π-π stacking" MWNTs was noncovalently modified with an imidazolium based ionic liquid (IL). Interestingly, the enhanced dispersion of IL-MWNTs in PVDF improved the electrical conductivity of the blends significantly. While one key requisite to attenuate EM radiation (i.e., electrical conductivity) was achieved using MWNTs, the magnetic properties of the blend structure was tuned by introducing barium ferrite (BaFe) nanoparticles, which can interact with the incoming EM radiation. By suitably modifying the surface of BaFe nanoparticles, we can tailor their localization under the macroscopic processing condition. The precise localization of BaFe nanoparticles in the PC phase, due to nucleophilic substitution reaction, and the MWNTs in the PVDF phase not only improved the conductivity but also facilitated in absorption of the incoming microwave radiation due to synergetic effect from MWNT and BaFe. The shielding effectiveness (SE) was measured in X and Ku band, and an enhanced SE of -37 dB was noted at 18 GHz frequency. PMMA, which acted as an interfacial modifier in PC/PVDF blends further, resulting in a significant enhancement in the mechanical properties besides retaining high SE. This study opens a new avenue in designing mechanically strong microwave absorbers with a suitable combination of materials.
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Affiliation(s)
- Sourav Biswas
- Department of Materials Engineering, Indian Institute of Science , Bangalore, India 560012
| | - Goutam Prasanna Kar
- Department of Materials Engineering, Indian Institute of Science , Bangalore, India 560012
| | - Suryasarathi Bose
- Department of Materials Engineering, Indian Institute of Science , Bangalore, India 560012
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17
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Bera R, Suin S, Maiti S, Shrivastava NK, Khatua BB. Carbon nanohorn and graphene nanoplate based polystyrene nanocomposites for superior electromagnetic interference shielding applications. J Appl Polym Sci 2015. [DOI: 10.1002/app.42803] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ranadip Bera
- Materials Science Centre, Indian Institute of Technology; Kharagpur 721302 India
| | - Supratim Suin
- Materials Science Centre, Indian Institute of Technology; Kharagpur 721302 India
| | - Sandip Maiti
- Materials Science Centre, Indian Institute of Technology; Kharagpur 721302 India
| | | | - Bhanu Bhusan Khatua
- Materials Science Centre, Indian Institute of Technology; Kharagpur 721302 India
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18
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Mural PKS, Pawar SP, Jayanthi S, Madras G, Sood AK, Bose S. Engineering Nanostructures by Decorating Magnetic Nanoparticles onto Graphene Oxide Sheets to Shield Electromagnetic Radiations. ACS APPLIED MATERIALS & INTERFACES 2015; 7:16266-78. [PMID: 26176935 DOI: 10.1021/acsami.5b02703] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
In this study, a minimum reflection loss of -70 dB was achieved for a 6 mm thick shield (at 17.1 GHz frequency) employing a unique approach. This was accomplished by engineering nanostructures through decoration of magnetic nanoparticles (nickel, Ni) onto graphene oxide (GO) sheets. Enhanced electromagnetic (EM) shielding was derived by selectively localizing the nanoscopic particles in a specific phase of polyethylene (PE)/poly(ethylene oxide) (PEO) blends. By introduction of a conducting inclusion (like multiwall carbon nanotubes, MWNTs) together with the engineered nanostructures (nickel-decorated GO, GO-Ni), the shielding efficiency can be enhanced significantly in contrast to physically mixing the particles in the blends. For instance, the composites showed a shielding efficiency >25 dB for a combination of MWNTs (3 wt %) and Ni nanoparticles (52 wt %) in PE/PEO blends. However, similar shielding effectiveness could be achieved for a combination of MWNTs (3 wt %) and 10 vol % of GO-Ni where in the effective concentration of Ni was only 19 wt %. The GO-Ni sheets facilitated in an efficient charge transfer as manifested from high electrical conductivity in the blends besides enhancing the permeability in the blends. It is envisioned that GO is simultaneously reduced in the process of synthesizing GO-Ni, and this facilitated in efficient charge transfer between the neighboring CNTs. More interestingly, the blends with MWNTs/GO-Ni attenuated the incoming EM radiation mostly by absorption. This study opens new avenues in designing polyolefin-based lightweight shielding materials by engineering nanostructures for numerous applications.
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Affiliation(s)
- Prasanna Kumar S Mural
- †Center for Nano Science and Engineering, ‡Department of Materials Engineering, §Department of Chemical Engineering, and ∥Department of Physics, Indian Institute of Science, Bangalore-560012, India
| | - Shital Patangrao Pawar
- †Center for Nano Science and Engineering, ‡Department of Materials Engineering, §Department of Chemical Engineering, and ∥Department of Physics, Indian Institute of Science, Bangalore-560012, India
| | - Swetha Jayanthi
- †Center for Nano Science and Engineering, ‡Department of Materials Engineering, §Department of Chemical Engineering, and ∥Department of Physics, Indian Institute of Science, Bangalore-560012, India
| | - Giridhar Madras
- †Center for Nano Science and Engineering, ‡Department of Materials Engineering, §Department of Chemical Engineering, and ∥Department of Physics, Indian Institute of Science, Bangalore-560012, India
| | - Ajay K Sood
- †Center for Nano Science and Engineering, ‡Department of Materials Engineering, §Department of Chemical Engineering, and ∥Department of Physics, Indian Institute of Science, Bangalore-560012, India
| | - Suryasarathi Bose
- †Center for Nano Science and Engineering, ‡Department of Materials Engineering, §Department of Chemical Engineering, and ∥Department of Physics, Indian Institute of Science, Bangalore-560012, India
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Bera R, Maiti S, Khatua BB. High electromagnetic interference shielding with high electrical conductivity through selective dispersion of multiwall carbon nanotube in poly (ε-caprolactone)/MWCNT composites. J Appl Polym Sci 2015. [DOI: 10.1002/app.42161] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Ranadip Bera
- Materials Science Centre, Indian Institute of Technology; Kharagpur 721302 India
| | - Sandip Maiti
- Materials Science Centre, Indian Institute of Technology; Kharagpur 721302 India
| | - Bhanu Bhusan Khatua
- Materials Science Centre, Indian Institute of Technology; Kharagpur 721302 India
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20
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Biswas S, Kar GP, Bose S. Attenuating microwave radiation by absorption through controlled nanoparticle localization in PC/PVDF blends. Phys Chem Chem Phys 2015; 17:27698-712. [DOI: 10.1039/c5cp05189d] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Nanoscale ordering in a polymer blend structure is indispensable to obtain materials with tailored properties.
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Affiliation(s)
- Sourav Biswas
- Department of Materials Engineering
- Indian Institute of Science
- Bangalore 560012
- India
| | - Goutam Prasanna Kar
- Department of Materials Engineering
- Indian Institute of Science
- Bangalore 560012
- India
| | - Suryasarathi Bose
- Department of Materials Engineering
- Indian Institute of Science
- Bangalore 560012
- India
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21
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Xu R, Xu X. Self-assembly of miscible homopolymer/quasi-block copolymer blends/MWNT composites: a strategy to obtain ultralow electrical percolation threshold and mechanism. RSC Adv 2015. [DOI: 10.1039/c4ra13689f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We utilized self-assembly of miscible polymer blends/CNTs composites to obtain ultralow electrical percolation threshold, with different results of both miscibility and glass transition temperature variations from antecedent works.
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Affiliation(s)
- Ri Xu
- Department of Physics
- East China Normal University
- Shanghai
- China
| | - Xuecheng Xu
- Department of Physics
- East China Normal University
- Shanghai
- China
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22
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Ma J, Wang K, Zhan M. A comparative study of structure and electromagnetic interference shielding performance for silver nanostructure hybrid polyimide foams. RSC Adv 2015. [DOI: 10.1039/c5ra09507g] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Comparison of structure and electromagnetic interference shielding performance for silver nanostructures hybrid polyimide foams.
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Affiliation(s)
- Jingjing Ma
- Key Laboratory of Aerospace Advanced Materials and Performance (Ministry of Education)
- School of Materials Science and Engineering
- Beihang University
- Beijing 100191
- P.R. China
| | - Kai Wang
- Key Laboratory of Aerospace Advanced Materials and Performance (Ministry of Education)
- School of Materials Science and Engineering
- Beihang University
- Beijing 100191
- P.R. China
| | - Maosheng Zhan
- Key Laboratory of Aerospace Advanced Materials and Performance (Ministry of Education)
- School of Materials Science and Engineering
- Beihang University
- Beijing 100191
- P.R. China
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23
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Jiang X, Yan DX, Bao Y, Pang H, Ji X, Li ZM. Facile, green and affordable strategy for structuring natural graphite/polymer composite with efficient electromagnetic interference shielding. RSC Adv 2015. [DOI: 10.1039/c4ra11332b] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The mechanical mixing and hot compaction method was firstly used to fabricate graphite/polymer segregated composite for efficient electromagnetic interference shielding.
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Affiliation(s)
- Xin Jiang
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu
- People's Republic of China
| | - Ding-Xiang Yan
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu
- People's Republic of China
| | - Yu Bao
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu
- People's Republic of China
| | - Huan Pang
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu
- People's Republic of China
| | - Xu Ji
- College of Chemical Engineering
- SichuanUniversity
- Chengdu
- People's Republic of China
| | - Zhong-Ming Li
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu
- People's Republic of China
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24
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He L, Tjong SC. Facile synthesis of silver-decorated reduced graphene oxide as a hybrid filler material for electrically conductive polymer composites. RSC Adv 2015. [DOI: 10.1039/c5ra00257e] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nano silver-decorated reduced graphene oxide (Ag–RGO) sheets were synthesized by simply dissolving graphite oxide and silver nitrate inN,N-dimethylformamide and keeping the suspension at 90 °C for 12 h.
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Affiliation(s)
- Linxiang He
- Department of Physics and Materials Science
- City University of Hong Kong
- Hong Kong
| | - Sie Chin Tjong
- Department of Physics and Materials Science
- City University of Hong Kong
- Hong Kong
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Rohini R, Bose S. Electromagnetic interference shielding materials derived from gelation of multiwall carbon nanotubes in polystyrene/poly(methyl methacrylate) blends. ACS APPLIED MATERIALS & INTERFACES 2014; 6:11302-11310. [PMID: 24980551 DOI: 10.1021/am502641h] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Blends of polystyrene (PS) and poly(methyl methacrylate) (PMMA) with different surface-functionalized multiwall carbon nanotubes (MWNTs) were prepared by solution blending to design materials with tunable EMI (electromagnetic interference) shielding. Different MWNTs like pristine, amine (∼NH2), and carboxyl acid (∼COOH) functionalized were incorporated in the polymer by solution blending. The specific interaction driven localization of MWNTs in the blend during annealing was monitored using contact mode AFM (atomic force microscopy) on thin films. Surface composition of the phase separated blends was further evaluated using X-ray photoelectron spectroscopy (XPS). The localization of MWNTs in a given phase in the bulk was further supported by selective dissolution experiments. Solution-casted PS/PMMA (50/50, wt/wt) blend exhibited a cocontinuous morphology on annealing for 30 min, whereas on longer annealing times it coarsened into matrix-droplet type of morphology. Interestingly, both pristine MWNTs and NH2-MWNTs resulted in interconnected structures of PMMA in PS matrix upon annealing, whereas COOH-MWNTs were localized in the PMMA droplets. Room-temperature electrical conductivity and electromagnetic shielding effectiveness (SE) were measured in a broad range of frequency. It was observed that both electrical conductivity and SE were strongly contingent on the type of surface functional groups on the MWNTs. The thermal conductivity of the blends was measured with laser flash technique at different temperatures. Interestingly, the SE for blends with pristine and NH2-MWNTs was >-24 dB at room temperature, which is commercially important, and with very marginal variation in thermal conductivity in the temperature range of 303-343 K. The gelation of MWNTs in the blends resulted in a higher SE than those obtained using the composites.
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Affiliation(s)
- Rani Rohini
- Department of Materials Engineering, Indian Institute of Science , Bangalore 560012, India
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