Study on the Microwave Permeability of the CNT Complex in 2-18GHz

Abstract

The frequency spectrum of the permeability of the single-walled carbon nanotubes (SWCNT)-paraffin complex<br />is studied in 2-18GHz, which is very important for the absorption performance of materials. The microwave<br />absorption materials are required by strong absorption performance, wide frequency band, thin thickness, and<br />good environmental stability. Traditional microwave absorption materials could not well fulfill above<br />requirements. By the measurement and acquisition of the permeability paramet of SWCNT-paraffin complex in<br />2-18GHz and the Origin software under different conditions, the influence of the concentration and frequency of<br />the complex on the permeability of the carbon nanotubes is analyzed in this article

Investigation of Rice Husk/CNTs Composites Performance in Microwave Properties

“…Single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) are most common types of CNTs [1,2]. RH-CNTs can absorb the energy from electromagnetic waves and convert it to heat due to its characteristic properties of these composite materials [3]. Furthermore, carbon is an important component in microwave absorbing material and CNTs have high content of carbon.…”

Experimental Determination of the Performance of Rice Husk-Carbon Nanotube Composites for Absorbing Microwave Signals in the Frequency Range of 12.4-18 GHZ

“…Some of the specific properties of CNTs allow them to store or absorb considerable energy [26,27]. The electromagnetic properties of pure CNTs are very difficult to measure directly because it is hard to form them in the required shape [7]. Therefore, CNTs must be combined with other materials to form composites in order to to measure their ability to absorb microwave radiation.…”

“…Recently, materials that can absorb microwaves have been made from carbon nanotubes (CNTs), and they have been investigated extensively because of their ability to absorb the energy from electromagnetic waves and convert it to heat so that it can be dissipated [7]. CNTs contain a high content of carbon, which is considered to be a lossy conductor material that can help absorb microwave energy [8][9][10][11][12][13].…”