Related Experiment Video
Updated: Sep 11, 2025
06:26
Experimental Implementation of a New Composite Fabrication Method: Exposing Bare Fibers on the Composite Surface by the Soft Layer Method
Published on: October 6, 2017
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Sandwich structured cellulose-based composite for electromagnetic interference shielding, infrared stealth and Joule
Jiasheng Wei1, Peiyu Zhao1, Di Li2
1Key Laboratory of Special Protective Textiles, Ministry of Education, College of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China.
Carbohydrate Polymers
|August 16, 2025
Summary
This study developed a flexible, cellulose-based composite for electromagnetic interference (EMI) shielding. The novel material integrates polysaccharides and magnetic nanoparticles, achieving high EMI shielding effectiveness and infrared stealth capabilities.
Area of Science:
- Materials Science
- Nanotechnology
- Polymer Science
Background:
- Growing concern over electromagnetic pollution necessitates advanced shielding materials.
- Renewable components and strategic structural design are key for effective electromagnetic interference (EMI) shielding.
- Cellulose-based materials offer a sustainable platform for developing functional composites.
Purpose of the Study:
- To fabricate a multifunctional cellulose-based composite for electromagnetic interference (EMI) shielding.
- To investigate the impact of a "conductor-magnet-conductor" sandwich structure on shielding performance.
- To evaluate the infrared stealth and Joule heating capabilities of the developed material.
Main Methods:
- Fabrication of a cellulose-based composite using TEMPO oxidized cellulose nanofiber, cationic starch, cellulose paper, Ti3C2Tx, and Fe3O4.
- Integration of these components into a "conductor-magnet-conductor" sandwich structure.
- Characterization of the composite's flexibility, tensile strength, electromagnetic shielding effectiveness (SE), infrared stealth, and Joule heating performance.
Main Results:
- The cellulose-based composite demonstrated excellent flexibility and tensile strength.
- The "conductor-magnet-conductor" sandwich structure significantly enhanced electromagnetic wave loss through interfacial reflection, dielectric loss, and magnetic loss.
- Achieved an impressive EMI shielding effectiveness (SE) of 62.9 dB.
- Exhibited satisfactory infrared stealth performance due to the low infrared emissivity of Ti3C2Tx.
- Displayed efficient Joule heating, reaching 104.8 °C in 25 s at 5 V.
Conclusions:
- The developed cellulose-based composite offers a promising multifunctional material for electromagnetic interference (EMI) shielding applications.
- The "conductor-magnet-conductor" sandwich structure is an effective design strategy for enhancing EMI shielding.
- This work presents a novel pathway for creating advanced, sustainable cellulose-based materials with combined shielding, stealth, and heating functionalities.
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