Improved Electromagnetic Interference Shielding Properties of MWCNT–PMMA Composites Using Layered Structures
<p>Abstract</p> <p>Electromagnetic interference (EMI) shielding effectiveness (SE) of multi-walled carbon nanotubes–polymethyl methacrylate (MWCNT–PMMA) composites prepared by two different techniques was measured. EMI SE up to 40 dB in the frequency range 8.2&a...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2009-01-01
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| Series: | Nanoscale Research Letters |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1007/s11671-008-9246-x |
| _version_ | 1797719567549595648 |
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| author | Saini P Dhawan SK Pande Shailaja Singh BP Mathur RB Dhami TL |
| author_facet | Saini P Dhawan SK Pande Shailaja Singh BP Mathur RB Dhami TL |
| author_sort | Saini P |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Electromagnetic interference (EMI) shielding effectiveness (SE) of multi-walled carbon nanotubes–polymethyl methacrylate (MWCNT–PMMA) composites prepared by two different techniques was measured. EMI SE up to 40 dB in the frequency range 8.2–12.4 GHz (X-band) was achieved by stacking seven layers of 0.3-mm thick MWCNT–PMMA composite films compared with 30 dB achieved by stacking two layers of 1.1-mm thick MWCNT–PMMA bulk composite. The characteristic EMI SE graphs of the composites and the mechanism of shielding have been discussed. SE in this frequency range is found to be dominated by absorption. The mechanical properties (tensile, flexural strength and modulus) of the composites were found to be comparable or better than the pure polymer. The studies therefore show that the composite can be used as structurally strong EMI shielding material.</p> |
| first_indexed | 2024-03-12T09:07:57Z |
| format | Article |
| id | doaj.art-6a5a822bbb0e4f12b1b78b30d36f718d |
| institution | Directory Open Access Journal |
| issn | 1931-7573 1556-276X |
| language | English |
| last_indexed | 2024-03-12T09:07:57Z |
| publishDate | 2009-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-6a5a822bbb0e4f12b1b78b30d36f718d2023-09-02T15:13:20ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2009-01-0144327334Improved Electromagnetic Interference Shielding Properties of MWCNT–PMMA Composites Using Layered StructuresSaini PDhawan SKPande ShailajaSingh BPMathur RBDhami TL<p>Abstract</p> <p>Electromagnetic interference (EMI) shielding effectiveness (SE) of multi-walled carbon nanotubes–polymethyl methacrylate (MWCNT–PMMA) composites prepared by two different techniques was measured. EMI SE up to 40 dB in the frequency range 8.2–12.4 GHz (X-band) was achieved by stacking seven layers of 0.3-mm thick MWCNT–PMMA composite films compared with 30 dB achieved by stacking two layers of 1.1-mm thick MWCNT–PMMA bulk composite. The characteristic EMI SE graphs of the composites and the mechanism of shielding have been discussed. SE in this frequency range is found to be dominated by absorption. The mechanical properties (tensile, flexural strength and modulus) of the composites were found to be comparable or better than the pure polymer. The studies therefore show that the composite can be used as structurally strong EMI shielding material.</p>http://dx.doi.org/10.1007/s11671-008-9246-xCarbon nanotubesDispersionCompositesElectrical conductivityEMI shielding effectiveness |
| spellingShingle | Saini P Dhawan SK Pande Shailaja Singh BP Mathur RB Dhami TL Improved Electromagnetic Interference Shielding Properties of MWCNT–PMMA Composites Using Layered Structures Nanoscale Research Letters Carbon nanotubes Dispersion Composites Electrical conductivity EMI shielding effectiveness |
| title | Improved Electromagnetic Interference Shielding Properties of MWCNT–PMMA Composites Using Layered Structures |
| title_full | Improved Electromagnetic Interference Shielding Properties of MWCNT–PMMA Composites Using Layered Structures |
| title_fullStr | Improved Electromagnetic Interference Shielding Properties of MWCNT–PMMA Composites Using Layered Structures |
| title_full_unstemmed | Improved Electromagnetic Interference Shielding Properties of MWCNT–PMMA Composites Using Layered Structures |
| title_short | Improved Electromagnetic Interference Shielding Properties of MWCNT–PMMA Composites Using Layered Structures |
| title_sort | improved electromagnetic interference shielding properties of mwcnt 8211 pmma composites using layered structures |
| topic | Carbon nanotubes Dispersion Composites Electrical conductivity EMI shielding effectiveness |
| url | http://dx.doi.org/10.1007/s11671-008-9246-x |
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