Study on Electromagnetic Properties of Graphite/Graphene/Silver-Coated Copper Powder Monolayer Coated Composites

• Autorzy: Liu Yuanjun , Han Xiaohui , Bao Wenli , Ding Xiongwei , Zhao Xiaoming

Identyfikatory

DOI

10.2478/ftee-2023-0009

• Języki publikacji: EN

Abstrakty

EN

With the rapid development of electronic technology and military techniques, electromagnetic protection materials are becoming more and more significant to people. Harmful electromagnetic radiation not only affects the normal operation of electronic equipments and military security, but also has a serious impact on human health. At present, using absorbing and shielding materials are effective means to reduce the harm of electromagnetic waves. In this project, graphite, graphene and silver-coated copper powder coated composites were prepared using PU-2540 polyurethane and adopting a coating process for the substrate on plain polyester/cotton fabric. The controlled variable method was used to prepare and study the electromagnetic properties of single-layer coating composites with different functional particle contents. The result showed that within the frequency range of 0.01GHz~1.0GHz, when the total mass of functional particles was 48% relative to that of the polyurethane, the value of the real part of the dielectric constant of the sample remained the largest and its polarization ability was the strongest. Within the frequency range of 0.08GHz~1.0GHz, when the content of functional particles was 24% relative to that of the polyurethane, the value of the imaginary part of the dielectric constant and the loss of the tangent value of the sample kept the maximum, and the loss and attenuation ability with respect to electromagnetic waves were both the strongest. Within the frequency range of 1.3GHz~2.0GHz, when the content of functional particles was 36% relative to that of the polyurethane, the value of the reflection loss of the sample was -26.93dB, and the minimum value of the reflection loss was obtained at a frequency of 1.6GHz, at the moment of which, the absorbing property of the sample was the best.

Słowa kluczowe

EN

graphite; graphene; copper powder; coated composite; electromagnetic properties

• Wydawca: Sieć Badawcza Łukasiewicz - Łódzki Instytut Technologiczny
• Czasopismo: Fibres & Textiles in Eastern Europe
• Rocznik: 2023
• Tom: Vol. 31, no. 1
• Strony: 83--90
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Liu Yuanjun

• Engineering research Center of Technical Textile, Ministry of Education, Donghua University, Shanghai 201620, China
• School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China

autor

Han Xiaohui

• School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China

autor

Bao Wenli

• School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China

autor

Ding Xiongwei

• School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China

autor

Zhao Xiaoming

• School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China

Bibliografia

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