Electromagnetic Wave Absorbing Properties of Cotton Fabric with Carbon Nanotubes Coating

• Autorzy: Zou Lihua , Shen Jiahui , Xu Zhenzhen , Ruan Fangtao , Qiu Yiping , Liu Zhi

Identyfikatory

DOI

10.5604/01.3001.0014.2390

Warianty tytułu

PL

Właściwości pochłaniania fal elektromagnetycznych tkaniny bawełnianej z powłoką z nanorurek węglowych

• Języki publikacji: EN

Abstrakty

EN

In order to endow cotton fabric with the electromagnetic shielding property while preserving comfort and softness, carbon nanotubes (CNTs) were coated onto NaOH pretreated fabrics via a binder-free dip-coating approach. Scanning electron microscopy (SEM) and Infrared spectroscopy were utilised to investigate the surface morphology and modification of the CNT functionalised fabrics. The effects of the number of dip-coatings, the concentration of carbon nanotubes, and the impregnation temperature on electrical conductivity, electromagnetic (EM) shielding effectiveness (SE), and wave absorbing efficiency of cotton fabrics were evaluated, respectively. The SE value of the CNT functionalised cotton fabrics increased with the dip-coating time and reached 16.5 dB after CNT dip-coating ten times, which indicates that 97.76% of the electromagnetic wave was shielded. Meanwhile, by adding layers of stacking fabrics, the SE of CNT coated fabrics was further improved to 26.4 dB. The shielding mechanism was also studied by comparing its reflection and absorption behaviour, which demonstrates that 65.7% of the electromagnetic wave was absorbed.

PL

Aby nadać tkaninie bawełnianej właściwości ekranowania elektromagnetycznego przy jednoczesnym zachowaniu komfortu i miękkości, najpierw zastosowano obróbkę tkaniny z zastosowaniem NaOH, a następnie nałożono na nią powłokę z nanorurek węglowych (CNT). Za pomocą skaningowej mikroskopii elektronowej (SEM) i spektroskopii w podczerwieni zbadano morfologię powierzchni tkanin funkcjonalizowanych CNT. Oceniono wpływ liczby powłok zanurzeniowych, stężenia nanorurek węglowych i temperatury impregnacji na przewodność elektryczną, skuteczność ekranowania elektromagnetycznego (EM) (SE) oraz efektywność pochłaniania fal przez tkaniny bawełniane. Stwierdzono, że wartość SE funkcjonalizowanych tkanin bawełnianych CNT wzrastała wraz z czasem powlekania zanurzeniowego i osiągnęła 16.5 dB po dziesięciokrotnym powlekaniu zanurzeniowym CNT, co wskazało, że 97.76% fali elektromagnetycznej było ekranowane. Poprzez dodanie warstw tkanin, współczynnik SE tkanin powlekanych CNT został dodatkowo poprawiony do 26,4 dB. Zbadano również mechanizm ekranowania, porównując jego właściwości odbijania oraz pochłaniania i stwierdzono, że 65.7% fali elektromagnetycznej zostało zaabsorbowane.

Słowa kluczowe

EN

carbon nanotube; electromagnetic wave; absorbing; coating; cotton fabric

PL

nanorurka węglowa; fala elektromagnetyczna; pochłanianie; powłoka; tkanina bawełniana

• Wydawca: Sieć Badawcza Łukasiewicz - Łódzki Instytut Technologiczny
• Czasopismo: Fibres & Textiles in Eastern Europe
• Rocznik: 2020
• Tom: Vol. 28, no. 5 (143)
• Strony: 82--90
• Opis fizyczny: Bibliogr. 40 poz., rys., tab.

Twórcy

autor

Zou Lihua

• Anhui Polytechnic University, College of Textile & Fashion, Wuhu, Anhui 241000, China

autor

Shen Jiahui

• Donghua University, College of Textile, Shanghai 201620, China

autor

Xu Zhenzhen

• Anhui Polytechnic University, College of Textile & Fashion, Wuhu, Anhui 241000, China

autor

Ruan Fangtao

• Anhui Polytechnic University, College of Textile & Fashion, Wuhu, Anhui 241000, China

autor

Qiu Yiping

• Donghua University, College of Textile, Shanghai 201620, China

autor

Liu Zhi

• Anhui Polytechnic University, College of Textile & Fashion, Wuhu, Anhui 241000, China

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