A.C conductivity and dielectric properties of (PVA/ PEO) blends doped with MWCNTs
A.C electrical conductivity and dielectric properties for poly (vinyl alcohol) (PVA) /poly (ethylene oxide) (PEO) blends undoped and doped with multi-walled carbon nanotube (MWCNTs) with different concentrations (1, and 3 wt %) in the frequency range (25x103 - 5x106 Hz) were investigated. Samples o...
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| Format: | Article |
| Language: | English |
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University of Baghdad
2019-02-01
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| Series: | Iraqi Journal of Physics |
| Subjects: | |
| Online Access: | https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/201 |
| _version_ | 1797871373842907136 |
|---|---|
| author | Ahmad A. Hasan |
| author_facet | Ahmad A. Hasan |
| author_sort | Ahmad A. Hasan |
| collection | DOAJ |
| description |
A.C electrical conductivity and dielectric properties for poly
(vinyl alcohol) (PVA) /poly (ethylene oxide) (PEO) blends undoped
and doped with multi-walled carbon nanotube (MWCNTs) with
different concentrations (1, and 3 wt %) in the frequency range
(25x103 - 5x106 Hz) were investigated. Samples of (PVA/PEO)
blends undoped and doped with MWCNTs were prepared using
casting technique. The electrical conductivity measurements showed
that σA.C is frequency dependent and obey the relation σA.C =Aωs for
undoped and doped blends with 1% MWCNTs, while it is frequency
independent with increases of MWCNTs content to 3%. The
exponent s showed proceeding increase with the increase of PEO
ratio (≥50%) for undoped blends samples, while s value for doped
blends exhibits to change in different manner, i.e. s increases and
reach maximum value at 50/50 PVA/PEO, then decreases for
residual doped blends samples with 1% MWCNTs on the other hand
the exponent s decrease and reach minimum value at 50/50
PVA/PEO for samples doped with 3% MWCNTs, then return to
increase. The results explained in different terms.
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| first_indexed | 2024-04-10T00:42:53Z |
| format | Article |
| id | doaj.art-6f8570c18d644264982bf1480a6b6556 |
| institution | Directory Open Access Journal |
| issn | 2070-4003 2664-5548 |
| language | English |
| last_indexed | 2024-04-10T00:42:53Z |
| publishDate | 2019-02-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Iraqi Journal of Physics |
| spelling | doaj.art-6f8570c18d644264982bf1480a6b65562023-03-14T05:28:49ZengUniversity of BaghdadIraqi Journal of Physics2070-40032664-55482019-02-01143010.30723/ijp.v14i30.201A.C conductivity and dielectric properties of (PVA/ PEO) blends doped with MWCNTsAhmad A. Hasan A.C electrical conductivity and dielectric properties for poly (vinyl alcohol) (PVA) /poly (ethylene oxide) (PEO) blends undoped and doped with multi-walled carbon nanotube (MWCNTs) with different concentrations (1, and 3 wt %) in the frequency range (25x103 - 5x106 Hz) were investigated. Samples of (PVA/PEO) blends undoped and doped with MWCNTs were prepared using casting technique. The electrical conductivity measurements showed that σA.C is frequency dependent and obey the relation σA.C =Aωs for undoped and doped blends with 1% MWCNTs, while it is frequency independent with increases of MWCNTs content to 3%. The exponent s showed proceeding increase with the increase of PEO ratio (≥50%) for undoped blends samples, while s value for doped blends exhibits to change in different manner, i.e. s increases and reach maximum value at 50/50 PVA/PEO, then decreases for residual doped blends samples with 1% MWCNTs on the other hand the exponent s decrease and reach minimum value at 50/50 PVA/PEO for samples doped with 3% MWCNTs, then return to increase. The results explained in different terms. https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/201Carbon nanotubes, Poly (vinyl alcohol), poly (ethylene oxide), (PVA/PEO) blends, Nanocomposites, Electrical properties. |
| spellingShingle | Ahmad A. Hasan A.C conductivity and dielectric properties of (PVA/ PEO) blends doped with MWCNTs Iraqi Journal of Physics Carbon nanotubes, Poly (vinyl alcohol), poly (ethylene oxide), (PVA/PEO) blends, Nanocomposites, Electrical properties. |
| title | A.C conductivity and dielectric properties of (PVA/ PEO) blends doped with MWCNTs |
| title_full | A.C conductivity and dielectric properties of (PVA/ PEO) blends doped with MWCNTs |
| title_fullStr | A.C conductivity and dielectric properties of (PVA/ PEO) blends doped with MWCNTs |
| title_full_unstemmed | A.C conductivity and dielectric properties of (PVA/ PEO) blends doped with MWCNTs |
| title_short | A.C conductivity and dielectric properties of (PVA/ PEO) blends doped with MWCNTs |
| title_sort | a c conductivity and dielectric properties of pva peo blends doped with mwcnts |
| topic | Carbon nanotubes, Poly (vinyl alcohol), poly (ethylene oxide), (PVA/PEO) blends, Nanocomposites, Electrical properties. |
| url | https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/201 |
| work_keys_str_mv | AT ahmadahasan acconductivityanddielectricpropertiesofpvapeoblendsdopedwithmwcnts |