Kallumottakkal Muhammed, Hussein Mousa I, Haik Yousef, Abdul Latef Tarik Bin
Department of Electrical Engineering, United Arab Emirates University, Al Ain 15551, United Arab Emirates.
Department of Mechanical and Industrial Engineering, Texas A & M University-Kingsville, Kingsville, TX 78363, USA.
Polymers (Basel). 2021 Nov 12;13(22):3907. doi: 10.3390/polym13223907.
In this research work, we studied the microwave properties of multi-wall carbon nanotube (MWCNT) surface functionalized with metallic oxides composites. Three different concentrations (5%, 10%, and 20%) of metallic oxides were used, namely cobalt, iron, and cobalt ferrite. The surface-decorated CNTS were impregnated into polyurethane (PU) matrix. The surface-decorated MWCNTs and the MWCNTs-PU composites were characterized using electron microscopy. The dielectric properties of the samples are studied using an open-ended coaxial probe technique in a wide frequency range of (5-50 GHz). The metallic oxide-decorated surface MWCNTs-PU composites demonstrated different microwave-frequency absorption characteristics depending on the concentration of the metallic oxides.
在这项研究工作中，我们研究了用金属氧化物复合材料进行表面功能化的多壁碳纳米管（MWCNT）的微波特性。使用了三种不同浓度（5%、10%和20%）的金属氧化物，即钴、铁和钴铁氧体。将表面修饰的碳纳米管浸渍到聚氨酯（PU）基体中。使用电子显微镜对表面修饰的多壁碳纳米管和多壁碳纳米管-聚氨酯复合材料进行了表征。在5-50 GHz的宽频率范围内，使用开放式同轴探头技术研究了样品的介电性能。金属氧化物修饰的表面多壁碳纳米管-聚氨酯复合材料根据金属氧化物的浓度表现出不同的微波频率吸收特性。
