Chemical Engineering Journal, Год журнала: 2022, Номер 446, С. 137093 - 137093
Опубликована: Май 24, 2022
Язык: Английский
Advanced Materials, Год журнала: 2023, Номер 35(16)
Опубликована: Янв. 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.
Язык: Английский
Процитировано
524
Advanced Composites and Hybrid Materials, Год журнала: 2022, Номер 5(2), С. 1253 - 1267
Опубликована: Июнь 1, 2022
Язык: Английский
Процитировано
218
Nano Research, Год журнала: 2022, Номер 16(1), С. 1773 - 1778
Опубликована: Окт. 12, 2022
Язык: Английский
Процитировано
210
Angewandte Chemie International Edition, Год журнала: 2022, Номер 62(5)
Опубликована: Ноя. 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.
Язык: Английский
Процитировано
204
Journal of Material Science and Technology, Год журнала: 2022, Номер 134, С. 106 - 131
Опубликована: Июль 22, 2022
Язык: Английский
Процитировано
188
Advanced Composites and Hybrid Materials, Год журнала: 2022, Номер 5(3), С. 1658 - 1698
Опубликована: Июнь 17, 2022
Язык: Английский
Процитировано
177
Nano-Micro Letters, Год журнала: 2022, Номер 14(1)
Опубликована: Ноя. 15, 2022
High‑efficiency electromagnetic interference (EMI) shielding materials are of great importance for electronic equipment reliability, information security and human health. In this work, bidirectional aligned Ti3C2Tx@Fe3O4/CNF aerogels (BTFCA) were firstly assembled by freezing freeze-drying technique, the BTFCA/epoxy nanocomposites with long-range lamellar structures then prepared vacuum-assisted impregnation epoxy resins. Benefitting from successful construction three-dimensional conductive networks synergistic effect, when mass fraction Ti3C2Tx Fe3O4 2.96 1.48 wt%, show outstanding EMI effectiveness 79 dB, about 10 times that blended Ti3C2Tx@Fe3O4/epoxy (8 dB) same loadings Fe3O4. Meantime, corresponding also present excellent thermal stability (Theat-resistance index 198.7 °C) mechanical properties (storage modulus 9902.1 MPa, Young's 4.51 GPa hardness 0.34 GPa). Our fabricated would greatly expand applications MXene resins in fields security, aerospace weapon manufacturing, etc.
Язык: Английский
Процитировано
173
Nano Research, Год журнала: 2023, Номер 16(5), С. 7820 - 7828
Опубликована: Март 15, 2023
Язык: Английский
Процитировано
168
Materials Today, Год журнала: 2023, Номер 66, С. 245 - 272
Опубликована: Апрель 10, 2023
Electromagnetic interference (EMI) shielding is critical in electronic applications. However, the currently available EMI materials are restricted customizability and application flexibility. Recent advances manufacturing technologies have provided a unique path to achieve custom creation of solutions. A successful example additive (AM), which has enabled high design freedom, efficient performance regulation, multifunctionality simultaneously into fabricated shields, offering an opportunity start revolution field shielding. In this review, we summarize latest AM materials, aiming provide deep understanding connection between raw methods, considerations, performances shields. We first introduce mechanism subsequently focusing on characteristics representative methods as-created Based requirements create application-oriented solutions, these also critically compared. Thereafter, present state-of-the-art considerations shields examine pivotal roles realizing designs. conclude by discussing future research directions, at motivating use developments
Язык: Английский
Процитировано
166
Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(38)
Опубликована: Авг. 7, 2023
The positive liquid crystals, 4'-heptyl-4-biphenylcarbonitrile (7CB), are used to functionalize carbon nanotubes (LC-CNT), which can be aligned in the crystalline polyimide (LC-PI) matrix under an alternating electric field fabricate thermally conductive LC-CNT/LC-PI composite films. efficient establishment of thermal conduction pathways films with a low amount LC-CNT is achieved through oriented alignment within LC-PI matrix. When mass fraction 15 wt %, in-plane conductivity coefficient (λ∥ ) and through-plane (λ⊥ reach 4.02 W/(m ⋅ K) 0.55 W/(m⋅K), 90.5 % 71.9 higher than those intrinsically respectively, also 28.8 5.8 CNT/LC-PI respectively. Meanwhile, possess excellent mechanical heat resistance properties. Young's modulus index 2.3 GPa 297.7 °C, same CNT.
Язык: Английский
Процитировано
150