Materials Today Physics, Journal Year: 2023, Volume and Issue: 35, P. 101110 - 101110
Published: May 11, 2023
Language: Английский
Advanced Materials, Journal Year: 2023, Volume and Issue: 35(16)
Published: Jan. 27, 2023
Flexible multifunctional polymer-based electromagnetic interference (EMI) shielding composite films have important applications in the fields of 5G communication technology, wearable electronic devices, and artificial intelligence. Based on design a porous/multilayered structure using polyimide (PI) as matrix polymethyl methacrylate (PMMA) microspheres template, flexible (Fe3 O4 /PI)-Ti3 C2 Tx -(Fe3 /PI) with controllable pore sizes distribution Ti3 hollow are successfully prepared by sacrificial template method. Owing to structure, when size is 10 µm mass ratio PMMA/Ti3 2:1, film has most excellent EMI performance, effectiveness (EMI SE) 85 dB. It further verified finite element simulation that an effect waves. In addition, good thermal conductivity (thermal coefficient 3.49 W (m·K)-1 ) mechanical properties (tensile strength 65.3 MPa). This conductivity, demonstrated great potential for protection high-power, portable, devices.
Language: Английский
Citations
504
Science Bulletin, Journal Year: 2023, Volume and Issue: 68(11), P. 1195 - 1212
Published: May 2, 2023
Language: Английский
Citations
310
Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 62(5)
Published: Nov. 22, 2022
Thermal conduction for electronic equipment has grown in importance light of the burgeoning 5G communication. It is imperatively desired to design highly thermally conductive fillers and polymer composite films with prominent Joule heating characteristics extensive mechanical properties. In this work, "solvothermal & situ growth" method carried out prepare "Fungal tree"-like hetero-structured silver nanowires@boron nitride nanosheet (AgNWs@BNNS) fillers. The AgNWs@BNNS/ANF are obtained by "suction filtration self-assembly hot-pressing". When mass fraction AgNWs@BNNS 50 wt%, film presents optimal thermal conductivity coefficient 9.44 W/(m ⋅ K) excellent tensile strength 136.6 MPa, good temperature-voltage response characteristics, superior electrical stability reliability, which promise a wide application potential devices.
Language: Английский
Citations
198
Science Bulletin, Journal Year: 2023, Volume and Issue: 68(17), P. 1938 - 1953
Published: Aug. 1, 2023
Language: Английский
Citations
127
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(17)
Published: Feb. 9, 2024
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
Language: Английский
Citations
122
Angewandte Chemie, Journal Year: 2022, Volume and Issue: 135(5)
Published: Nov. 22, 2022
Abstract Thermal conduction for electronic equipment has grown in importance light of the burgeoning 5G communication. It is imperatively desired to design highly thermally conductive fillers and polymer composite films with prominent Joule heating characteristics extensive mechanical properties. In this work, “solvothermal & situ growth” method carried out prepare “Fungal tree”‐like hetero‐structured silver nanowires@boron nitride nanosheet (AgNWs@BNNS) fillers. The AgNWs@BNNS/ANF are obtained by “suction filtration self‐assembly hot‐pressing”. When mass fraction AgNWs@BNNS 50 wt%, film presents optimal thermal conductivity coefficient 9.44 W/(m ⋅ K) excellent tensile strength 136.6 MPa, good temperature‐voltage response characteristics, superior electrical stability reliability, which promise a wide application potential devices.
Language: Английский
Citations
117
Materials Today Physics, Journal Year: 2023, Volume and Issue: 31, P. 100962 - 100962
Published: Jan. 7, 2023
Language: Английский
Citations
98
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: March 25, 2024
Abstract Defects and microstructures have been utilized to effectively modulate electromagnetic (EM) wave absorption for mitigating pollution stealth issues. However, precisely feasibly tailoring them still remains challenging. Here, by using a multilevel hollow cobalt sulfide embedded in heteroatomic sulfur (S) ‐doped carbon aerogel, preferential reaction strategy of modulating point defects via controllable S atoms migration is proposed improve the EM absorption. contribute creation structures Kirkendall effects, as well inducing lattice through doping. More significantly, mechanisms prioritizing formation over discovered, with low‐velocity atomic primarily microstructure interfacial polarization impedance matching, high‐velocity atom focused on introducing achieve conductive loss. The resulting aerogel exhibits an exceptionally maximum reflection loss −52.82 dB effective bandwidth 8.82 GHz, which far exceeds most currently reported materials. Experimental theoretical approaches, including microwave heating, Tesla interaction, first principles, far‐field simulation, are comprehensively employed verify its effect mechanism. Furthermore, combination excellent infrared self‐cleaning properties opens up potential applications complex environments.
Language: Английский
Citations
91
Nano Research, Journal Year: 2023, Volume and Issue: 17(3), P. 927 - 938
Published: Nov. 30, 2023
Language: Английский
Citations
90
Materials Today Physics, Journal Year: 2022, Volume and Issue: 30, P. 100950 - 100950
Published: Dec. 20, 2022
Language: Английский
Citations
81