電磁波吸収、圧力センシング、抗菌活性のための導電性セルロース系繊維
Rufei Ge1,2,3, Longtai Wang1,2, Yuzhe Zhang1,2
1School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
ACS applied materials & interfaces
|February 2, 2026
まとめ
新しい導電性セルロース繊維は、電磁波吸収と抗菌特性を提供する。これらのウェアラブルテキスタイルは、高度な電子アプリケーションおよび健康モニタリングに有望である。
科学分野:
- 材料科学
- ナノテクノロジー
- テキスタイル工学
背景:
- 増大する電磁波公害は、シールドのための高度な材料を必要としている。
- ウェアラブルテキスタイルには、電磁波吸収を含む多機能が必要である。
研究 の 目的:
- 電磁波吸収のための多機能導電性セルロース系複合繊維を製造すること。
- セルロース繊維の導電率と安定性を向上させること。
- 電磁波吸収、抗菌、センシング能力を評価すること。
主な方法:
- ウェットスピンとin situ重合を用いた複合繊維の製造。
- 再生セルロース繊維(RCF)をポリピロール(PPy)およびカルボキシル化マルチウォールカーボンナノチューブ(c-MWCNTs)でコーティング。
- 導電率、耐摩耗性、洗濯耐久性、電磁波吸収、抗菌活性、圧力センシングをテストした。
主要な成果:
- 導電率127.12 S/mを達成し、安定した性能を示した。
- 最小反射損失-43.46 dB、有効吸収帯域幅7.95 GHzの優れた電磁波吸収能力を実証した。
- S. aureusおよびE. coliに対する有意な抗菌活性、および高感度圧力センシング(1.10 kPa⁻¹)を示した。
結論:
- 開発された複合繊維は多機能であり、優れた電磁波吸収を提供する。
- この材料は、優れた耐久性と抗菌用途の可能性を示す。
- 複合繊維は、ウェアラブル技術における統合センシング機能に有望である。
関連する概念動画
Electromagnetic Waves
11.4K
James Clerk Maxwell formulated a single theory combining all the electric and magnetic effects scientists knew during that time, calling the phenomena his theory predicted “Electromagnetic waves”. He brought together all the work that had been done by brilliant physicists such as Oersted, Coulomb, Gauss, and Faraday and added his own insights to develop the overarching theory of electromagnetism. Maxwell’s equations, combined with the Lorentz force law, encompass all the laws...
11.4K
Plane Electromagnetic Waves I
5.0K
The existence of combined electric and magnetic fields that propagate through space as electromagnetic (EM) waves is the most significant prediction of Maxwell's equations. As Maxwell's equations hold in free space, the predicted electromagnetic waves do not require a medium for their propagation. An EM wave comprises an electric field, defined as the force per charge on a stationary charge, and a magnetic field, which is the force per charge on a moving charge.
The EM field is assumed to be a...
The EM field is assumed to be a...
5.0K
Plane Electromagnetic Waves II
4.1K
Consider a plane wavefront traveling in position x-direction with a constant speed. This wavefront can be utilized to obtain the relationship between electric and magnetic fields with the help of Faraday's law.
4.1K
Electromagnetic Waves in Matter
4.0K
Electromagnetic waves can travel in the vacuum as well as in matter. For example light, which is an electromagnetic wave, can travel through air, water, or glass.
Consider the electromagnetic wave passing through a dielectric medium. In such a case, Maxwell's equations get modified. In Ampere's law, ε0 , the dielectric permittivity of free space is replaced with ε, the permittivity of dielectric. Also, the vacuum permeability μ0 is replaced by the permeability of the medium, μ.
Furthermore,...
Consider the electromagnetic wave passing through a dielectric medium. In such a case, Maxwell's equations get modified. In Ampere's law, ε0 , the dielectric permittivity of free space is replaced with ε, the permittivity of dielectric. Also, the vacuum permeability μ0 is replaced by the permeability of the medium, μ.
Furthermore,...
4.0K
Electromagnetic Wave Equation
2.2K
Maxwell's equations for electromagnetic fields are related to source charges, either static or moving. These fields act on a test charge, whose trajectory can thus be determined using suitable boundary conditions. The objective of electromagnetism is thus theoretically complete.
However, although electric and magnetic fields were first introduced as mathematical constructs to simplify the description of mutual forces between charges, a natural question emerges from Maxwell's equations:...
However, although electric and magnetic fields were first introduced as mathematical constructs to simplify the description of mutual forces between charges, a natural question emerges from Maxwell's equations:...
2.2K
Intensity Of Electromagnetic Waves
5.9K
The energy transport per unit area per unit time, or the Poynting vector, gives the energy flux of an electromagnetic wave at any specific time. For a plane electromagnetic wave with E0 and B0 as the peak electric and magnetic fields and traveling along the x-axis, the time-varying energy flux can be given by the following equation:
5.9K


