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Snake Scale-Inspired Poly(vinylidene fluoride)/Ti3CNT@Polypyrrole Coatings for Ultrawide-Bandwidth Microwave and
Yu Liu1, Xiaoming Qi1, Xiuyan Deng1
1Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, P. R. China.
ACS Applied Materials & Interfaces
|May 31, 2023
Summary
This study introduces novel PVDF/Ti3CNT@PPyNF composites for advanced electromagnetic wave absorption. These materials effectively attenuate both microwave and visible light, offering enhanced protection in complex electromagnetic environments.
Area of Science:
- Materials Science
- Nanotechnology
- Electromagnetics
Background:
- Optical instrument accuracy is compromised by electromagnetic waves and visible light.
- Existing electromagnetic-wave-absorbing materials struggle with visible light spectrum attenuation.
Purpose of the Study:
- To develop a novel composite material for effective absorption of both microwave and visible light.
- To address the limitations of traditional electromagnetic-wave-absorbing materials.
Main Methods:
- A structural engineering approach was used to assemble PVDF/Ti3CNT@PPyNF composites with heterogeneous interfaces, inspired by snake scales.
- Self-doping with N elements and a coating process were employed to enhance absorption properties.
Main Results:
- The PVDF/Ti3CNT@PPyNF composite (5 wt % Ti3CNT@PPyNFs) achieved a minimum reflection loss of -65.5 dB and an effective absorption bandwidth of 6.95 GHz for microwaves.
- The composite coating demonstrated 97.4% visible light absorption.
Conclusions:
- The developed composite exhibits excellent microwave and visible light absorption performance.
- This material offers a promising solution for protection against complex electromagnetic environments.
