Multi‐Field Coupled Motion Induces Electromagnetic Wave Absorbing Property Regeneration of Elastomer in Marine Environment

Author:

Tao Jiaqi1,Zhou Jintang1,Yao Zhengjun1,Wang Jin2,Xu Linling3,Tao Xuewei4,Wu Hongjing5ORCID

Affiliation:

1. Key Laboratory of Material Preparation and Protection for Harsh Environment, Ministry of Industry and Information Technology College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing Jiangsu 211100 P.R. China

2. College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology) Nanjing University of Posts and Telecommunications Nanjing Jiangsu 210023 P.R. China

3. School of Electronic Science and Engineering Nanjing University Nanjing Jiangsu 210093 P.R. China

4. School of Materials Science and Engineering Nanjing Institute of Technology Nanjing Jiangsu 211167 P.R. China

5. MOE Key Laboratory of Material Physics and Chemistry under Extraordinary School of Physical Science and Technology Northwestern Polytechnical University Xi'an 710072 P.R. China

Abstract

AbstractThe mechanical‐electromagnetic dual healing system equips warships with the same reproducibility as biological skin, enabling rapid restoration of electromagnetic stealth and overcoming disturbances in the marine environment. However, the principle of electromagnetic wave absorption (EWA) property regeneration and co‐healing model are still largely unknown. Herein, a bio‐inspired intelligent elastomer is created that combines 2D EWA mediums with an underwater self‐healing fluoropolymer framework, realizing multifunctional integration. It demonstrates excellent broadband EWA characteristics (8.68 GHz, 2.16 mm) and promising underwater self‐healing (23.73%, 3 h). Notably, the dynamic interweaving motion between chemical and physical fields (i.e., dielectric and magnetic fields) facilitates positive chain effects of mechanical healing on electromagnetic function. Consequently, this interdependence drives efficient EWA property regeneration (94.1%, 3 h), including but not limited to underwater and air. Furthermore, the system boasts excellent hydrophobicity and chemical stability for seawater and strong alkali. Overall, this work is the first to present an effective strategy for quickly restoring electromagnetic stealth in marine environments, which expands the feasibility boundary of the interdisciplinarity.

Funder

National Basic Research Program of China

National Natural Science Foundation of China

Natural Science Foundation of Jiangsu Province

Nanjing University of Aeronautics and Astronautics

Ministry of Industry and Information Technology of the People's Republic of China

Publisher

Wiley

Subject

Electrochemistry,Condensed Matter Physics,Biomaterials,Electronic, Optical and Magnetic Materials

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