{"title":"受枣糕启发设计的轻质柔性 MXene/液态金属/细菌纤维素电磁干扰屏蔽膜,具有出色的焦耳热和导热性能","authors":"Mengxin Liu, Haoran Zhang, Ziyi Zhang, Kunlai Zhang, Zhenwu Chen, Lei Pan, Jintang Zhou","doi":"10.1016/j.compscitech.2024.110722","DOIUrl":null,"url":null,"abstract":"<div><p>The modern 5G communication electronics and systems require lightweight and flexible films that have superior electromagnetic interference (EMI) shielding performance as well as high thermal conductivity. This work reports a facile “one-pot” synthesis strategy to create EMI shielding films with a structure inspired by “jujube cake”. The two-dimensional Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene nanosheets were combined with one-dimensional bacterial cellulose (BC) to form a mechanically entangled supporting framework resembling the structure of a “sponge cake”, wherein zero-dimensional liquid metal (LM) droplets like “jujubes” were ingeniously introduced. A series of multifunctional Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>/LM/BC (TLB) EMI shielding films with highly efficient conductive networks and complete thermal conductivity pathways were prepared through a simple, eco-friendly and highly scalable fabrication process involving vacuum-assisted filtration and hot pressing. Such ultrathin (18 μm) and lightweight (0.63 g cm<sup>−3</sup>) TLB composite film demonstrates an outstanding specific SE (SSE/t) of 21695.8 dB cm<sup>2</sup> g<sup>−1</sup>. Meanwhile, it exhibits a remarkable in-plane thermal conductivity of 10.44 W m<sup>−1</sup> K<sup>−1</sup> and exceptional Joule heat performance from room temperature to 95 °C at 3.0 V in seconds. These attractive properties and scalable fabrication of TLB composite film showcase its potential in the realm of flexible electronics, particularly for applications pertaining to EMI shielding protection, electromagnetic compatibility and thermal management.</p></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":null,"pages":null},"PeriodicalIF":8.3000,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Jujube-cake inspired lightweight and flexible MXene/liquid metal/bacterial cellulose electromagnetic interference shielding film with excellent Joule heating and thermal conductivity\",\"authors\":\"Mengxin Liu, Haoran Zhang, Ziyi Zhang, Kunlai Zhang, Zhenwu Chen, Lei Pan, Jintang Zhou\",\"doi\":\"10.1016/j.compscitech.2024.110722\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The modern 5G communication electronics and systems require lightweight and flexible films that have superior electromagnetic interference (EMI) shielding performance as well as high thermal conductivity. This work reports a facile “one-pot” synthesis strategy to create EMI shielding films with a structure inspired by “jujube cake”. The two-dimensional Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene nanosheets were combined with one-dimensional bacterial cellulose (BC) to form a mechanically entangled supporting framework resembling the structure of a “sponge cake”, wherein zero-dimensional liquid metal (LM) droplets like “jujubes” were ingeniously introduced. A series of multifunctional Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>/LM/BC (TLB) EMI shielding films with highly efficient conductive networks and complete thermal conductivity pathways were prepared through a simple, eco-friendly and highly scalable fabrication process involving vacuum-assisted filtration and hot pressing. Such ultrathin (18 μm) and lightweight (0.63 g cm<sup>−3</sup>) TLB composite film demonstrates an outstanding specific SE (SSE/t) of 21695.8 dB cm<sup>2</sup> g<sup>−1</sup>. Meanwhile, it exhibits a remarkable in-plane thermal conductivity of 10.44 W m<sup>−1</sup> K<sup>−1</sup> and exceptional Joule heat performance from room temperature to 95 °C at 3.0 V in seconds. These attractive properties and scalable fabrication of TLB composite film showcase its potential in the realm of flexible electronics, particularly for applications pertaining to EMI shielding protection, electromagnetic compatibility and thermal management.</p></div>\",\"PeriodicalId\":283,\"journal\":{\"name\":\"Composites Science and Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":8.3000,\"publicationDate\":\"2024-06-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Composites Science and Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0266353824002926\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, COMPOSITES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composites Science and Technology","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0266353824002926","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
引用次数: 0
摘要
现代 5G 通信电子设备和系统要求轻质柔性薄膜具有优异的电磁干扰(EMI)屏蔽性能和高导热性。本研究报告了一种简便的 "一锅法 "合成策略,以 "枣糕 "为灵感,制造出具有这种结构的 EMI 屏蔽膜。二维 Ti3C2Tx MXene 纳米片与一维细菌纤维素(BC)相结合,形成了类似 "海绵蛋糕 "结构的机械缠结支撑框架,并巧妙地引入了类似 "红枣 "的零维液态金属(LM)液滴。通过真空辅助过滤和热压等简单、环保和高度可扩展的制造工艺,制备出一系列具有高效导电网络和完整导热通道的多功能 Ti3C2Tx/LM/BC (TLB) EMI 屏蔽膜。这种超薄(18 μm)、轻质(0.63 g cm-3)的 TLB 复合薄膜具有出色的比 SE(SSE/t),达到 21695.8 dB cm2 g-1。同时,它还具有 10.44 W m-1 K-1 的出色面内热导率,以及在 3.0 V 电压下从室温到 95 °C 的瞬间焦耳热性能。TLB 复合薄膜的这些诱人特性和可扩展的制造工艺展示了它在柔性电子领域的潜力,尤其是在 EMI 屏蔽保护、电磁兼容性和热管理方面的应用。
Jujube-cake inspired lightweight and flexible MXene/liquid metal/bacterial cellulose electromagnetic interference shielding film with excellent Joule heating and thermal conductivity
The modern 5G communication electronics and systems require lightweight and flexible films that have superior electromagnetic interference (EMI) shielding performance as well as high thermal conductivity. This work reports a facile “one-pot” synthesis strategy to create EMI shielding films with a structure inspired by “jujube cake”. The two-dimensional Ti3C2Tx MXene nanosheets were combined with one-dimensional bacterial cellulose (BC) to form a mechanically entangled supporting framework resembling the structure of a “sponge cake”, wherein zero-dimensional liquid metal (LM) droplets like “jujubes” were ingeniously introduced. A series of multifunctional Ti3C2Tx/LM/BC (TLB) EMI shielding films with highly efficient conductive networks and complete thermal conductivity pathways were prepared through a simple, eco-friendly and highly scalable fabrication process involving vacuum-assisted filtration and hot pressing. Such ultrathin (18 μm) and lightweight (0.63 g cm−3) TLB composite film demonstrates an outstanding specific SE (SSE/t) of 21695.8 dB cm2 g−1. Meanwhile, it exhibits a remarkable in-plane thermal conductivity of 10.44 W m−1 K−1 and exceptional Joule heat performance from room temperature to 95 °C at 3.0 V in seconds. These attractive properties and scalable fabrication of TLB composite film showcase its potential in the realm of flexible electronics, particularly for applications pertaining to EMI shielding protection, electromagnetic compatibility and thermal management.
期刊介绍:
Composites Science and Technology publishes refereed original articles on the fundamental and applied science of engineering composites. The focus of this journal is on polymeric matrix composites with reinforcements/fillers ranging from nano- to macro-scale. CSTE encourages manuscripts reporting unique, innovative contributions to the physics, chemistry, materials science and applied mechanics aspects of advanced composites.
Besides traditional fiber reinforced composites, novel composites with significant potential for engineering applications are encouraged.