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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14919
Title: Ultra-light weight, water durable and flexible highly electrical conductive polyurethane foam for superior electromagnetic interference shielding materials
Authors: Ghosh S.
Ganguly S.
Remanan S.
Mondal S.
Jana S.
Maji, Pradip K.
Singha N.
Das N.C.
Published in: Journal of Materials Science: Materials in Electronics
Abstract: An inexpensive light weight radiation shielding materials have been fabricated by one step, facile technique avoiding toxic volatile organic solvents. Herein, we adopted ‘dip coating and drying’ method to prepare high surface area specialty conductive black (Ketjen-600JD) loaded polyurethane (PU) composite foam. The non-ionic surfactant stabilized black particles showed promising improvement in electrical conductivity (exceptionally low percolation threshold concentration) and water durability. The morphological analysis from electron microscopy and 3D micro computed tomography supports uniform conducting pathway formation on to the cell walls of the cellular PU system. The PU foam surprisingly showed no severe drop of porosity even after dipping in high carbon black dispersion. This efficiently supports the micro structural integrity of the foam composites which has been normally retained as the pristine foam. The EMI shielding value of the composite foam for only 2 wt% carbon black shows 65.6 dB which is amazingly high for other reported values till date. This can be said that the prepared conducting foam is suitable alternative for low cost durable EMI shielding material. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.
Citation: Journal of Materials Science: Materials in Electronics (2018), 29(12): 10177-10189
URI: https://doi.org/10.1007/s10854-018-9068-2
http://repository.iitr.ac.in/handle/123456789/14919
Issue Date: 2018
Publisher: Springer New York LLC
ISSN: 9574522
Author Scopus IDs: 55704827500
7102863075
57189322416
57190973896
57197780308
56249287900
6701656205
7201994971
Author Affiliations: Ghosh, S., Rubber Technology Centre, Indian Institute of Technology, Kharagpur, 721302, India
Ganguly, S., Rubber Technology Centre, Indian Institute of Technology, Kharagpur, 721302, India
Remanan, S., Rubber Technology Centre, Indian Institute of Technology, Kharagpur, 721302, India
Mondal, S., Rubber Technology Centre, Indian Institute of Technology, Kharagpur, 721302, India
Jana, S., Central Research Facility, Indian Institute of Technology, Kharagpur, 721302, India
Maji, P.K., Department of Polymer & Process Engineering, Indian Institute of Technology, Roorkee, 247001, India
Singha, N., Rubber Technology Centre, Indian Institute of Technology, Kharagpur, 721302, India
Das, N.C., Rubber Technology Centre, Indian Institute of Technology, Kharagpur, 721302, India
Corresponding Author: Das, N.C.; Rubber Technology Centre, Indian Institute of TechnologyIndia; email: ncdas@rtc.iitkgp.ernet.in
Appears in Collections:Journal Publications [PE]

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