کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
820450 | 1469536 | 2013 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of composite electrical properties on the VHF-UHF electromagnetic shielding characteristics of polyethylene-carbon nanoparticle composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Influence of composite electrical properties on the VHF-UHF electromagnetic shielding characteristics of polyethylene-carbon nanoparticle composites Influence of composite electrical properties on the VHF-UHF electromagnetic shielding characteristics of polyethylene-carbon nanoparticle composites](/preview/png/820450.png)
چکیده انگلیسی
The influence of composite electrical properties on the plane-wave electromagnetic shielding effectiveness (EM SE) of carbon nanoparticle/polyethylene nanocomposites is reported in the VHF and UHF bands (30Â MHz-1.5Â GHz). Two highly graphitic carbon nanoparticles (heat-treated Pyrograf® III PR-19 carbon nanofibers and CheapTubes® multi-walled carbon nanotubes) were dispersed in a linear low density polyethylene (LLDPE) matrix to produce a nominally random in-plane particle orientation. For a concentration of 10Â vol% nanoparticles and a sample thickness of 2.5Â mm, EM SE values of 24Â dB and 22Â dB were obtained for MWNT HT and PR-19 HT nanocomposites, respectively. At a high concentration of 40Â vol%, EM SE values as high as 68Â dB and 55Â dB were obtained for the PR-19 HT and MWNT HT nanocomposites, respectively. Because such nanocomposites possess only moderate electrical conductivity, the composite permittivity was also used to predict the plane wave EM SE and its components. Based on the material properties of the nanocomposites, the predicted values of EM SE were found to be consistent with the experimental values.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 89, 13 December 2013, Pages 158-166
Journal: Composites Science and Technology - Volume 89, 13 December 2013, Pages 158-166
نویسندگان
Byron S. Villacorta, Todd H. Hubing, Amod A. Ogale,