Synthesis and dielectric characterization of polycarbonate/multi-wall carbon nanotubes nanocomposite
Multi-wall carbon nanotubes (MWCNTs) and Polycarbonate/Multi-wall carbon nanotubes nanocomposite were prepared by chemical vapor deposition (CVD) and twin-screw compounding extruder method, respectively. The morphology and dispersion were characterized by Scanning Electron Microscopy. The Raman anal...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019-03-01
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| Series: | Arabian Journal of Chemistry |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1878535215003111 |
| _version_ | 1818879724336709632 |
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| author | Poonam Yadav Anoop K. Srivastava Manoj K. Yadav Ram Kripal Vijay Singh Dong Bok Lee Ji-Hoon Lee |
| author_facet | Poonam Yadav Anoop K. Srivastava Manoj K. Yadav Ram Kripal Vijay Singh Dong Bok Lee Ji-Hoon Lee |
| author_sort | Poonam Yadav |
| collection | DOAJ |
| description | Multi-wall carbon nanotubes (MWCNTs) and Polycarbonate/Multi-wall carbon nanotubes nanocomposite were prepared by chemical vapor deposition (CVD) and twin-screw compounding extruder method, respectively. The morphology and dispersion were characterized by Scanning Electron Microscopy. The Raman analysis confirmed good interaction between multi-wall carbon nanotubes and polycarbonate. The dielectric impedance spectroscopy of polycarbonate/multi-wall carbon nanotubes nanocomposite varying from 0.25 to 1.5 weight percentages has been carried out in the frequency range of 1.0 Hz–1.0 MHz. One dielectric relaxation mode is observed in pristine polycarbonate at low frequency region (∼10 Hz), whereas polycarbonate loaded with multi-wall carbon nanotubes induced one more dielectric relaxation in kHz region (∼10 kHz). The percolation threshold of the polycarbonate/multi-wall carbon nanotubes composites was observed at 0.75 wt.% of MWCNTs. Keywords: Nanocomposite, Polymers, Multi-wall carbon nanotubes, Dielectric spectroscopy |
| first_indexed | 2024-12-19T14:34:37Z |
| format | Article |
| id | doaj.art-25e3a5c6a4f54630af68f3ba2b253597 |
| institution | Directory Open Access Journal |
| issn | 1878-5352 |
| language | English |
| last_indexed | 2024-12-19T14:34:37Z |
| publishDate | 2019-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arabian Journal of Chemistry |
| spelling | doaj.art-25e3a5c6a4f54630af68f3ba2b2535972022-12-21T20:17:20ZengElsevierArabian Journal of Chemistry1878-53522019-03-01123440446Synthesis and dielectric characterization of polycarbonate/multi-wall carbon nanotubes nanocompositePoonam Yadav0Anoop K. Srivastava1Manoj K. Yadav2Ram Kripal3Vijay Singh4Dong Bok Lee5Ji-Hoon Lee6School of Advanced Materials Science & Engineering, Sungkyunkwan University, Suwon 440-746, South KoreaDivision of Electronics Engineering, Chonbuk National University, Jeonju, Jeonbuk 561-756, South Korea; Corresponding authors.Nanotechnology Application Centre, University of Allahabad, Allahabad 211002, IndiaPhysics Department, University of Allahabad, Allahabad 211002, IndiaDepartment of Chemical Engineering, Konkuk University, Seoul 143-701, South KoreaSchool of Advanced Materials Science & Engineering, Sungkyunkwan University, Suwon 440-746, South KoreaDivision of Electronics Engineering, Chonbuk National University, Jeonju, Jeonbuk 561-756, South Korea; Corresponding authors.Multi-wall carbon nanotubes (MWCNTs) and Polycarbonate/Multi-wall carbon nanotubes nanocomposite were prepared by chemical vapor deposition (CVD) and twin-screw compounding extruder method, respectively. The morphology and dispersion were characterized by Scanning Electron Microscopy. The Raman analysis confirmed good interaction between multi-wall carbon nanotubes and polycarbonate. The dielectric impedance spectroscopy of polycarbonate/multi-wall carbon nanotubes nanocomposite varying from 0.25 to 1.5 weight percentages has been carried out in the frequency range of 1.0 Hz–1.0 MHz. One dielectric relaxation mode is observed in pristine polycarbonate at low frequency region (∼10 Hz), whereas polycarbonate loaded with multi-wall carbon nanotubes induced one more dielectric relaxation in kHz region (∼10 kHz). The percolation threshold of the polycarbonate/multi-wall carbon nanotubes composites was observed at 0.75 wt.% of MWCNTs. Keywords: Nanocomposite, Polymers, Multi-wall carbon nanotubes, Dielectric spectroscopyhttp://www.sciencedirect.com/science/article/pii/S1878535215003111 |
| spellingShingle | Poonam Yadav Anoop K. Srivastava Manoj K. Yadav Ram Kripal Vijay Singh Dong Bok Lee Ji-Hoon Lee Synthesis and dielectric characterization of polycarbonate/multi-wall carbon nanotubes nanocomposite Arabian Journal of Chemistry |
| title | Synthesis and dielectric characterization of polycarbonate/multi-wall carbon nanotubes nanocomposite |
| title_full | Synthesis and dielectric characterization of polycarbonate/multi-wall carbon nanotubes nanocomposite |
| title_fullStr | Synthesis and dielectric characterization of polycarbonate/multi-wall carbon nanotubes nanocomposite |
| title_full_unstemmed | Synthesis and dielectric characterization of polycarbonate/multi-wall carbon nanotubes nanocomposite |
| title_short | Synthesis and dielectric characterization of polycarbonate/multi-wall carbon nanotubes nanocomposite |
| title_sort | synthesis and dielectric characterization of polycarbonate multi wall carbon nanotubes nanocomposite |
| url | http://www.sciencedirect.com/science/article/pii/S1878535215003111 |
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