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Updated: Sep 11, 2025

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
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.
Abstract:
In response to the escalating threat of electromagnetic pollution, there has been a growing focus on the development of electromagnetic interference (EMI) shielding materials. Particularly, renewable components and proper structure are favored to design EMI shielding materials. Herein, polysaccharides (i.e., TEMPO oxidized cellulose nanofiber and cationic starch) and cellulose paper were applied to fabricate a composite with the sandwich structure of "conductor-magnet-conductor" by integrating with Ti3C2Tx and Fe3O4. This cellulose-based composite exhibited good flexibility and tensile strength. The sandwich structure enhanced the electromagnetic wave loss, owing to interfacial reflection, dielectric loss, and magnetic loss. The composite achieved an EMI shielding effectiveness (SE) of 62.9 dB. It also possessed a satisfactory infrared stealth performance due to the low infrared emissivity of Ti3C2Tx, which could effectively block infrared radiation from the heated object. Furthermore, the composite exhibited good Joule heating performance (reaching 104.8 °C within 25 s at 5 V). This work might provide a new pathway for the design of multifunctional cellulose-based materials.
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