Next Article in Journal
A Dimensionless Characteristic Number for Process Selection and Mold Design in Composites Manufacturing: Part II—Applications
Next Article in Special Issue
Nitrogen-Doped Carbon Nanotube/Polypropylene Composites with Negative Seebeck Coefficient
Previous Article in Journal
Anionic Polymerization of ε-Caprolactam under the Influence of Water: 2. Kinetic Model
Previous Article in Special Issue
Multifunctional Carbon Nanotubes Enhanced Structural Composites with Improved Toughness and Damage Monitoring
Open AccessArticle

Does the Type of Polymer and Carbon Nanotube Structure Control the Electromagnetic Shielding in Melt-Mixed Polymer Nanocomposites?

1
Department of Chemistry, National Institute of Technology, Durgapur 713209, India
2
Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, India
3
Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
*
Authors to whom correspondence should be addressed.
J. Compos. Sci. 2020, 4(1), 9; https://doi.org/10.3390/jcs4010009
Received: 15 November 2019 / Revised: 3 January 2020 / Accepted: 9 January 2020 / Published: 15 January 2020
(This article belongs to the Special Issue Recent Advances in Carbon Nanotube Composites)
A suitable polymer matrix and well dispersed conducting fillers forming an electrically conducting network are the prime requisites for modern age electromagnetic shield designing. An effective polymer-based shield material is designed that can attenuate 99.9% of incident electromagnetic (EM) radiation at a minimum thickness of <0.5 mm. This is accomplished by the choice of a suitable partially crystalline polymer matrix while comparing non-polar polypropylene (PP) with polar polyvinylidene fluoride (PVDF) and a best suited filler nanomaterial by comparing different types of carbon nanotubes such as; branched, single-walled and multi-walled carbon nanotubes, which were added in only 2 wt %. Different types of interactions (polar-polar and CH-π and donor-acceptor) make b-MWCNT more dispersible in the PVDF matrix, which together with high crystallinity resulted in the best electrical conductivity and electromagnetic shielding ability of this composite. This investigation additionally conceals the issues related to the thickness of the shield material just by stacking individual thin nanocomposite layers containing different carbon nanotube (CNT) types with 0.3 mm thickness in a simple manner and finally achieves 99.999% shielding efficiency at just 0.9 mm thickness when using a suitable order of the different PVDF based nanocomposites. View Full-Text
Keywords: polymer nanocomposites; polypropylene (PP); polyvinylidene fluoride (PVDF); carbon nanotube; microwave shielding polymer nanocomposites; polypropylene (PP); polyvinylidene fluoride (PVDF); carbon nanotube; microwave shielding
Show Figures

Figure 1

MDPI and ACS Style

Biswas, S.; Muzata, T.S.; Krause, B.; Rzeczkowski, P.; Pötschke, P.; Bose, S. Does the Type of Polymer and Carbon Nanotube Structure Control the Electromagnetic Shielding in Melt-Mixed Polymer Nanocomposites? J. Compos. Sci. 2020, 4, 9.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop