Dielectric and Microwave Properties of Siloxane Rubber/Carbon Black Nanocomposites and Their Correlation
In this paper, the dielectric and microwave properties of carbon black/siloxane rubber-based nanocomposites have been investigated in the frequency range from 1 GHz till 12 GHz according to the content of carbon black and the frequency. It has been established that the increasing frequency and fille...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2011/837803 |
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| author | Omar A. Al-Hartomy Falleh Al-Solamy Ahmed Al-Ghamdi Nikolay Dishovsky Vladimir Iliev Farid El-Tantawy |
| author_facet | Omar A. Al-Hartomy Falleh Al-Solamy Ahmed Al-Ghamdi Nikolay Dishovsky Vladimir Iliev Farid El-Tantawy |
| author_sort | Omar A. Al-Hartomy |
| collection | DOAJ |
| description | In this paper, the dielectric and microwave properties of carbon black/siloxane rubber-based nanocomposites have been investigated in the frequency range from 1 GHz till 12 GHz according to the content of carbon black and the frequency. It has been established that the increasing frequency and filler content lead to an increase in the relative permittivity and tangent of dielectric loss angle. At higher filler content, the effects become more pronounced, especially those upon dielectric loss. It has been also established that there are two well-distinguished areas in all dependences of microwave properties on frequency and filler content increasing. The first is between 1 and 8 GHz wherein the reflection and attenuation of microwaves do not change considerably with frequency and filler content alternation while shielding effectiveness worsens. The second area is between 8 and 12 GHz wherein the reflection and attenuation of microwaves increase drastically with the increasing frequency and filler content. Shielding effectiveness improves, too. It has been established that in all cases the degree of correlation between dielectric and microwave properties evaluated on the basis of the coefficients of correlation calculation is perfect. |
| format | Article |
| id | doaj-art-474b88b6b6e2413da8049379be74aaa4 |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-474b88b6b6e2413da8049379be74aaa42025-02-03T05:49:37ZengWileyInternational Journal of Polymer Science1687-94221687-94302011-01-01201110.1155/2011/837803837803Dielectric and Microwave Properties of Siloxane Rubber/Carbon Black Nanocomposites and Their CorrelationOmar A. Al-Hartomy0Falleh Al-Solamy1Ahmed Al-Ghamdi2Nikolay Dishovsky3Vladimir Iliev4Farid El-Tantawy5Physics Department, Faculty of Science, University of Tabuk, 71491 Tabuk, Saudi ArabiaMathematics Department, Faculty of Science, University of Tabuk, 71491 Tabuk, Saudi ArabiaPhysics Department, Faculty of Sciences, King Abdulaziz University, 21589 Jeddah, Saudi ArabiaDepartment of Polymer Engineering, University of Chemical Technology and Metallurgy, 1756 Sofia, BulgariaCollege of Telecommunications and Posts, 1700 Sofia, BulgariaDepartment of Physics, Faculty of Science, Suez Canal University, Ismailia, EgyptIn this paper, the dielectric and microwave properties of carbon black/siloxane rubber-based nanocomposites have been investigated in the frequency range from 1 GHz till 12 GHz according to the content of carbon black and the frequency. It has been established that the increasing frequency and filler content lead to an increase in the relative permittivity and tangent of dielectric loss angle. At higher filler content, the effects become more pronounced, especially those upon dielectric loss. It has been also established that there are two well-distinguished areas in all dependences of microwave properties on frequency and filler content increasing. The first is between 1 and 8 GHz wherein the reflection and attenuation of microwaves do not change considerably with frequency and filler content alternation while shielding effectiveness worsens. The second area is between 8 and 12 GHz wherein the reflection and attenuation of microwaves increase drastically with the increasing frequency and filler content. Shielding effectiveness improves, too. It has been established that in all cases the degree of correlation between dielectric and microwave properties evaluated on the basis of the coefficients of correlation calculation is perfect.http://dx.doi.org/10.1155/2011/837803 |
| spellingShingle | Omar A. Al-Hartomy Falleh Al-Solamy Ahmed Al-Ghamdi Nikolay Dishovsky Vladimir Iliev Farid El-Tantawy Dielectric and Microwave Properties of Siloxane Rubber/Carbon Black Nanocomposites and Their Correlation International Journal of Polymer Science |
| title | Dielectric and Microwave Properties of Siloxane Rubber/Carbon Black Nanocomposites and Their Correlation |
| title_full | Dielectric and Microwave Properties of Siloxane Rubber/Carbon Black Nanocomposites and Their Correlation |
| title_fullStr | Dielectric and Microwave Properties of Siloxane Rubber/Carbon Black Nanocomposites and Their Correlation |
| title_full_unstemmed | Dielectric and Microwave Properties of Siloxane Rubber/Carbon Black Nanocomposites and Their Correlation |
| title_short | Dielectric and Microwave Properties of Siloxane Rubber/Carbon Black Nanocomposites and Their Correlation |
| title_sort | dielectric and microwave properties of siloxane rubber carbon black nanocomposites and their correlation |
| url | http://dx.doi.org/10.1155/2011/837803 |
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