Composites Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 111129 - 111129
Published: Feb. 1, 2025
Language: Английский
Composites Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 111129 - 111129
Published: Feb. 1, 2025
Language: Английский
Advanced Materials, Journal Year: 2024, Volume and Issue: 36(48)
Published: Oct. 9, 2024
Abstract The advancement of thin, lightweight, and high‐power electronic devices has increasingly exacerbated issues related to electromagnetic interference heat accumulation. To address these challenges, a spray‐drying‐sintering process is employed assemble chain‐like CoNi flake boron nitride (BN) into hydrangea‐like CoNi@BN heterostructure fillers. These fillers are then composited with polydimethylsiloxane (PDMS) develop CoNi@BN/PDMS composites, which integrate low‐frequency microwave absorption thermal conductivity. When the volume fraction 44 vol% mass ratio BN 3:1, composites exhibit optimal performance in both achieve minimum reflection loss −49.9 dB effective bandwidth 2.40 GHz (3.92–6.32 GHz) at thickness 4.4 mm, fully covering n79 band (4.4–5.0 for 5G communications. Meanwhile, in‐plane conductivity ( λ ∥ ) 7.31 W m −1 K , ≈11.4 times (0.64 pure PDMS, 32% higher than that (CoNi/BN)/PDMS (5.52 same obtained through direct mixing.
Language: Английский
Citations
134Advanced Materials, Journal Year: 2024, Volume and Issue: unknown
Published: July 6, 2024
Flexible and highly thermally conductive materials with consistent thermal conductivity (λ) during large deformation are urgently required to address the heat accumulation in flexible electronics. In this study, spring-like conduction pathways of silver nanowire (S-AgNW) fabricated by 3D printing compounded polydimethylsiloxane (PDMS) prepare S-AgNW/PDMS composites excellent λ deformation. The exhibit a 7.63 W m
Language: Английский
Citations
87International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 277, P. 134233 - 134233
Published: July 28, 2024
Language: Английский
Citations
66Ceramics International, Journal Year: 2024, Volume and Issue: 50(13), P. 24549 - 24557
Published: April 22, 2024
Language: Английский
Citations
51Advanced 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
Citations
49Advanced 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
Citations
37Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1010, P. 177092 - 177092
Published: Oct. 16, 2024
Language: Английский
Citations
21Composites Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 111080 - 111080
Published: Jan. 1, 2025
Language: Английский
Citations
15Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)
Published: Feb. 7, 2025
Abstract The microstructure design for thermal conduction pathways in polymeric electrical encapsulation materials is essential to meet the stringent requirements efficient management and runaway safety modern electronic devices. Hence, a composite with three-dimensional network (Ho/U-BNNS/WPU) developed by simultaneously incorporating magnetically modified boron nitride nanosheets (M@BNNS) non-magnetic organo-grafted BNNS (U-BNNS) into waterborne polyurethane (WPU) synchronous molding under horizontal magnetic field. results indicate that continuous in-plane formed M@BNNS aligned along field direction, combined bridging structure established U-BNNS, enable Ho/U-BNNS/WPU exhibit exceptional ( λ // ) through-plane conductivities ⊥ ). In particular, addition of 30 wt% 5 composites reach 11.47 2.88 W m −1 K , respectively, which representing 194.2% improvement compared single orientation M@BNNS. Meanwhile, exhibits distinguished capabilities as interface LED chips. also demonstrate excellent flame retardancy, peak heat release total reduced 58.9% 36.9%, WPU. Thus, this work offers new insights thermally conductive structural flame-retardant systems polymer composites, presenting broad application potential packaging fields.
Language: Английский
Citations
5ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 4, 2025
Language: Английский
Citations
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