Flexible thermoplastic polyurethane/MXene foams for compressible electromagnetic interference shielding

Materials Today Physics, Journal Year: 2023, Volume and Issue: 32, P. 101017 - 101017

Published: Feb. 13, 2023

Language: Английский

---

Self-assembly of submillimeter porous structure on metal-organic framework to construct heterogeneous interface for controlling microwave absorption

Materials Today Physics, Journal Year: 2023, Volume and Issue: 35, P. 101126 - 101126

Published: May 25, 2023

Language: Английский

---

Robust Solid–Solid Phase Change Coating Encapsulated Glass Fiber Fabric with Electromagnetic Interference Shielding for Thermal Management and Message Encryption

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 9, 2024

Abstract Electromagnetic interference (EMI) shielding composites with both thermal response/management functions and message transfer/encryption behavior are ideal for use in fields such as aerospace, construction engineering, military equipment. In this work, a self‐cross‐linking supramolecular solid–solid phase change polyethylene glycol (ScPEG) coating is prepared based on multiple hydrogen bonds, which used encapsulating glass fiber fabric (GFF) modified silver nanowires (AgNWs). The obtained through the hydrolysis‐condensation of PEG reactive silanol end group. Polyethylene molecular chains can store release heat by switching between crystalline amorphous state. groups form networks physical cross‐linking resulting an excellent stability. particular, bonds ScPEG AgNW‐modified GFF (A‐GFF) enhance interfacial interactions, robust structure enables efficient stress transfer. ScPEG‐coated A‐GFF achieve tensile strength up to 191 MPa tunable EMI effectiveness (SE) 40 72 dB depending number layers. Moreover, exhibits flexible response characteristic, outstanding management capability, potential encryption behavior.

Language: Английский

---

Electromagnetic oscillation induced graphene-based aerogel microspheres with dual-chamber achieving high-performance broadband microwave absorption

Composites Part B Engineering, Journal Year: 2023, Volume and Issue: 271, P. 111149 - 111149

Published: Dec. 16, 2023

Language: Английский

---

Asymmetric Structural MXene/PBO Aerogels for High‐Performance Electromagnetic Interference Shielding with Ultra‐Low Reflection

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

Abstract Electromagnetic interference (EMI) shielding materials with low electromagnetic (EM) waves reflection characteristics are ideal for blocking EM radiation and pollution. Materials reflectivity must be constructed using excellent absorption properties. However, simultaneously possessing both EMI performance remain scarce, consequently, multilayer structures need to developed. Poly(p‐phenylene–2,6–benzobisoxazole) nanofibers (PNF) prepared by deprotonation. PNF combined MXene heterostructure MXene@Ni in‐situ growth; MXene@Ni/PNF acts as an layer while MXene/PNF reflective layer. Finally, (MXene@Ni/PNF)–(MXene/PNF) aerogels layer‐by‐layer freeze‐drying based on the layered modular design concept. Experimental characterizations revealed that enable efficient absorption‐reflection‐reabsorption of waves, effectively eliminating EMI. When mass ratio Ni in is 1:6 fraction 80 wt.%, exhibit (71 dB) a very coefficient (R = 0.10). Finite element simulations verified developed asymmetric structural achieve high characteristics. In addition, display infrared camouflage ability.

Language: Английский

---

Honeycomb-like Polyimide/Fe3O4@PPy foam for electromagnetic wave shielding with excellent absorption characteristics

Composites Science and Technology, Journal Year: 2024, Volume and Issue: 249, P. 110489 - 110489

Published: Feb. 7, 2024

Language: Английский

---

Multifunctional nanocellulose-based electromagnetic interference shielding composites: Design, functionality, and future prospects

Industrial Crops and Products, Journal Year: 2024, Volume and Issue: 210, P. 118148 - 118148

Published: Feb. 7, 2024

Language: Английский

---

Recent progress on general wearable electrical heating textiles enabled by functional fibers

Nano Energy, Journal Year: 2024, Volume and Issue: 124, P. 109497 - 109497

Published: March 16, 2024

Language: Английский

---

Stretchable supramolecular hydrogel with instantaneous self-healing for electromagnetic interference shielding control and sensing

Composites Part B Engineering, Journal Year: 2024, Volume and Issue: 287, P. 111826 - 111826

Published: Sept. 12, 2024

Language: Английский

---

Highly Thermally Conductive Aramid Nanofiber Composite Films with Synchronous Visible/Infrared Camouflages and Information Encryption

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(17)

Published: Feb. 9, 2024

Abstract The development of highly thermally conductive composites that combine visible light/infrared camouflage and information encryption has been endowed with great significance in facilitating the application 5G communication technology military fields. This work uses aramid nanofibers (ANF) as matrix, hetero‐structured silver nanowires@boron nitride nanosheets (AgNWs@BNNS) prepared by situ growth fillers, which are combined to fabricate sandwich structured electrically insulating (BNNS/ANF)‐(AgNWs@BNNS)‐(BNNS/ANF) (denoted BAB) composite films “filtration self‐assembly, air spraying, hot‐pressing” method. When mass ratio AgNWs@BNNS BNNS is 1 : total fraction 50 wt %, BAB film maximum in‐plane thermal conductivity coefficient ( λ ∥ 10.36 W/(m ⋅ K)), excellent electrical insulation (breakdown strength volume resistivity 41.5 kV/mm 1.21×10 15 Ω cm, respectively) mechanical properties (tensile 170.9 MPa). % could efficiently reduce equilibrium temperature central processing unit (CPU) working at full power, resulting 7.0 °C lower than CPU solely integrated ANF directly. In addition, boasts adaptive dual on cement roads jungle environments, well function fast QR code within 24 seconds.

Language: Английский

---