Fabrication and evaluation of thin layer PVDF composites using MWCNT reinforcement: Mechanical, electrical and enhanced electromagnetic interference shielding properties
Radar X-band electromagnetic interference shielding (EMS) is one of the prime requirements for any air vehicle coating; with limitations on the balance between strength and thickness of the EMS material. Nanocomposite of multiwalled-carbon-nanotubes (MWCNT) has been homogeneously integrated (0 – 9 w...
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| Veröffentlicht in: | AIP advances 2016-06, Vol.6 (6), p.065107-065107-9 |
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| creator | Bhaskara Rao, B. V. Kale, Nikita Kothavale, B. S. Kale, S. N. |
| description | Radar X-band electromagnetic interference shielding (EMS) is one of the prime requirements for any air vehicle coating; with limitations on the balance between strength and thickness of the EMS material. Nanocomposite of multiwalled-carbon-nanotubes (MWCNT) has been homogeneously integrated (0 – 9 wt%) with polymer, poly (vinylidene fluoride, PVDF) to yield 300 micron film. The PVDF + 9 wt% MWCNT sample of density 1.41 g/cm3 show specific shielding effectiveness (SSE) of 17.7 dB/(g/cm3) (99.6% EMS), with maintained hardness and improved conductivity. With multilayer stacking (900 microns) of these films of density 1.37 g/cm3, the sample showed increase in SSE to 23.3 dB/(g/cm3) (99.93% EMS). Uniform dispersion of MWCNTs in the PVDF matrix gives rise to increased conductivity in the sample beyond 5 wt% MWCNT reinforcement. The results are correlated to the hardness, reflection loss, absorption loss, percolation threshold, permittivity and the conductivity data. An extremely thin film with maximum EMS property is hence proposed. |
| doi_str_mv | 10.1063/1.4953810 |
| format | Article |
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Uniform dispersion of MWCNTs in the PVDF matrix gives rise to increased conductivity in the sample beyond 5 wt% MWCNT reinforcement. The results are correlated to the hardness, reflection loss, absorption loss, percolation threshold, permittivity and the conductivity data. An extremely thin film with maximum EMS property is hence proposed.</description><identifier>ISSN: 2158-3226</identifier><identifier>EISSN: 2158-3226</identifier><identifier>DOI: 10.1063/1.4953810</identifier><identifier>CODEN: AAIDBI</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Density ; Electrical resistivity ; Electromagnetic shielding ; Multi wall carbon nanotubes ; Multilayers ; Nanocomposites ; Percolation ; Thin films ; Vinylidene ; Vinylidene fluoride</subject><ispartof>AIP advances, 2016-06, Vol.6 (6), p.065107-065107-9</ispartof><rights>Author(s)</rights><rights>2016 Author(s). 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N.</creatorcontrib><title>Fabrication and evaluation of thin layer PVDF composites using MWCNT reinforcement: Mechanical, electrical and enhanced electromagnetic interference shielding properties</title><title>AIP advances</title><description>Radar X-band electromagnetic interference shielding (EMS) is one of the prime requirements for any air vehicle coating; with limitations on the balance between strength and thickness of the EMS material. Nanocomposite of multiwalled-carbon-nanotubes (MWCNT) has been homogeneously integrated (0 – 9 wt%) with polymer, poly (vinylidene fluoride, PVDF) to yield 300 micron film. The PVDF + 9 wt% MWCNT sample of density 1.41 g/cm3 show specific shielding effectiveness (SSE) of 17.7 dB/(g/cm3) (99.6% EMS), with maintained hardness and improved conductivity. With multilayer stacking (900 microns) of these films of density 1.37 g/cm3, the sample showed increase in SSE to 23.3 dB/(g/cm3) (99.93% EMS). Uniform dispersion of MWCNTs in the PVDF matrix gives rise to increased conductivity in the sample beyond 5 wt% MWCNT reinforcement. The results are correlated to the hardness, reflection loss, absorption loss, percolation threshold, permittivity and the conductivity data. An extremely thin film with maximum EMS property is hence proposed.</description><subject>Density</subject><subject>Electrical resistivity</subject><subject>Electromagnetic shielding</subject><subject>Multi wall carbon nanotubes</subject><subject>Multilayers</subject><subject>Nanocomposites</subject><subject>Percolation</subject><subject>Thin films</subject><subject>Vinylidene</subject><subject>Vinylidene fluoride</subject><issn>2158-3226</issn><issn>2158-3226</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>DOA</sourceid><recordid>eNp9kc1uEzEQgFeISlRtD7yBJU4gUvyXXZsbCqRUaguHAkfLa48TRxt7sZ1KfaS-ZZ1uVJCQ8MWemU_fjDVN85rgc4Jb9oGcczlnguAXzTElczFjlLYv_3q_as5y3uB6uCRY8OPmYan75I0uPgakg0Vwp4fdFEaHytoHNOh7SOj7z89LZOJ2jNkXyGiXfVih61-Lm1uUwAcXk4EthPIRXYNZ61Ctw3sEA5iy7zBM-lArBuwhH7d6FaB4g3wokBwkqFWU1x4Gu_ePKY6Qiod82hw5PWQ4O9wnzY_ll9vF19nVt4vLxaermeFUlBmwDpzmLXatdFIzYLa1fUeNAE55TykIKrWUnWTMYuckdL1ue-kAxNxQxk6ay8lro96oMfmtTvcqaq-eEjGtlK4DmQEUYQ6kI7UZxxwAeuiZAYyFta0QHFfXm8lVv_F7B7moTdylUMdXlFDSYclbWam3E2VSzDmBe-5KsNovVhF1WGxl301sNr48rekZvovpD6hG6_4H_2t-BHnjtNE</recordid><startdate>201606</startdate><enddate>201606</enddate><creator>Bhaskara Rao, B. 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N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c428t-e37efa460f69f9a3e3d6db72c8e424b22e829a997933d0ff9e7ba6b9fee85c233</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Density</topic><topic>Electrical resistivity</topic><topic>Electromagnetic shielding</topic><topic>Multi wall carbon nanotubes</topic><topic>Multilayers</topic><topic>Nanocomposites</topic><topic>Percolation</topic><topic>Thin films</topic><topic>Vinylidene</topic><topic>Vinylidene fluoride</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bhaskara Rao, B. V.</creatorcontrib><creatorcontrib>Kale, Nikita</creatorcontrib><creatorcontrib>Kothavale, B. S.</creatorcontrib><creatorcontrib>Kale, S. N.</creatorcontrib><collection>AIP Open Access Journals</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>AIP advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bhaskara Rao, B. V.</au><au>Kale, Nikita</au><au>Kothavale, B. S.</au><au>Kale, S. N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fabrication and evaluation of thin layer PVDF composites using MWCNT reinforcement: Mechanical, electrical and enhanced electromagnetic interference shielding properties</atitle><jtitle>AIP advances</jtitle><date>2016-06</date><risdate>2016</risdate><volume>6</volume><issue>6</issue><spage>065107</spage><epage>065107-9</epage><pages>065107-065107-9</pages><issn>2158-3226</issn><eissn>2158-3226</eissn><coden>AAIDBI</coden><abstract>Radar X-band electromagnetic interference shielding (EMS) is one of the prime requirements for any air vehicle coating; with limitations on the balance between strength and thickness of the EMS material. Nanocomposite of multiwalled-carbon-nanotubes (MWCNT) has been homogeneously integrated (0 – 9 wt%) with polymer, poly (vinylidene fluoride, PVDF) to yield 300 micron film. The PVDF + 9 wt% MWCNT sample of density 1.41 g/cm3 show specific shielding effectiveness (SSE) of 17.7 dB/(g/cm3) (99.6% EMS), with maintained hardness and improved conductivity. With multilayer stacking (900 microns) of these films of density 1.37 g/cm3, the sample showed increase in SSE to 23.3 dB/(g/cm3) (99.93% EMS). Uniform dispersion of MWCNTs in the PVDF matrix gives rise to increased conductivity in the sample beyond 5 wt% MWCNT reinforcement. The results are correlated to the hardness, reflection loss, absorption loss, percolation threshold, permittivity and the conductivity data. An extremely thin film with maximum EMS property is hence proposed.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4953810</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-0061-9503</orcidid><oa>free_for_read</oa></addata></record> |
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| source | DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection; Free Full-Text Journals in Chemistry |
| subjects | Density Electrical resistivity Electromagnetic shielding Multi wall carbon nanotubes Multilayers Nanocomposites Percolation Thin films Vinylidene Vinylidene fluoride |
| title | Fabrication and evaluation of thin layer PVDF composites using MWCNT reinforcement: Mechanical, electrical and enhanced electromagnetic interference shielding properties |
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