焦耳加热
材料科学
电磁干扰
电磁屏蔽
复合数
导电体
电子设备和系统的热管理
纳米复合材料
图层(电子)
制作
电磁干扰
复合材料
消散
热导率
光电子学
电气工程
机械工程
医学
替代医学
病理
工程类
物理
热力学
作者
Zhangna Tan,Hong Zhao,Furong Sun,Linxin Ran,Longfei Yi,Lijuan Zhao,Jinrong Wu
标识
DOI:10.1016/j.compositesa.2022.106809
摘要
Polymeric composites that feature both highly efficient EMI shielding and rapid heat dissipation have long been attractive, but it remains a significant challenge to fulfill such goals by virtue of lower film thickness and less filler. Inspired by the electrostatic interaction between oppositely charged chitosan (CS) solution and transition metal carbide (MXene) slurry, here we report a series of CS/MXene alternating layered films by taking advantage of layer by layer assembly strategy. The resultant 35-μm thick CS/MXene multilayer film presents a maximum EMI SE of 40.8 dB, a high specific EMI SE (SSEt) of 10, 650 dB cm2 g−1, together with superior thermal conductivity (6.3 W m−1 K−1) and excellent Joule heating capacity. Thus, this research opens up a new horizon for achieving satisfying EMI shielding and heat dissipation capacity, which will further benefit the development of MXene‑based composite materials in next-generation electrical devices.
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