Highly Thermally Conductive PEEK-based Bi-selective Radiative Cooling Composites with Isolated Structure for Outdoor Thermal Management DOI
Yuxuan Gu,

Yageng Bai,

Fengyu Wen

et al.

Composites Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 111129 - 111129

Published: Feb. 1, 2025

Language: Английский

Excellent Low‐Frequency Microwave Absorption and High Thermal Conductivity in Polydimethylsiloxane Composites Endowed by Hydrangea‐Like CoNi@BN Heterostructure Fillers DOI Open Access
Mukun He,

Xiao Zhong,

Xinghan Lu

et al.

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

134

Consistent Thermal Conductivities of Spring‐Like Structured Polydimethylsiloxane Composites under Large Deformation DOI

Yongqiang Guo,

Shuangshuang Wang, Haitian Zhang

et al.

Advanced 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

87

Phase change composite based on lignin carbon aerogel/nickel foam dual-network for multisource energy harvesting and superb EMI shielding DOI

Ruihan Yan,

Zan Huang, Ying Chen

et al.

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 277, P. 134233 - 134233

Published: July 28, 2024

Language: Английский

Citations

66

Rational construction of ZnFe2O4 decorated hollow carbon cloth towards effective electromagnetic wave absorption DOI
Xingliang Chen, Di Lan, Luoting Zhou

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: 50(13), P. 24549 - 24557

Published: April 22, 2024

Language: Английский

Citations

51

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

Qiangqiang Huo,

Jiamin Qi

et al.

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

Citations

49

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

An Liu,

Hua Qiu,

Xinghan Lu

et al.

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

Citations

37

Zeolite imidazolate framework derived efficient absorbers: from morphology modulation to component regulation DOI
Jiajun Zheng, Di Lan, Shijie Zhang

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1010, P. 177092 - 177092

Published: Oct. 16, 2024

Language: Английский

Citations

21

Triple-network structured phase change composite based on “rod-brush” CNTs-CFs with high thermal conductivity DOI

Xiaoling He,

Wenjian Zhang,

Yuanjun Yang

et al.

Composites Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 111080 - 111080

Published: Jan. 1, 2025

Language: Английский

Citations

15

Highly Thermally Conductive and Flame-Retardant Waterborne Polyurethane Composites with 3D BNNS Bridging Structures via Magnetic Field Assistance DOI Creative Commons
Hao Jiang,

Yuhui Xie,

Mukun He

et al.

Nano-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

5

Flow-Aligned Layered Polyethylene/Graphene Films for Thermal Management DOI

Hongli Cheng,

Jie Yu,

Gaojie Han

et al.

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 4, 2025

Language: Английский

Citations

2