文献类型：期刊文献

英文题名：Ultrathin and Flexible ANF/APP/PRGO Composite Films for High-Performance Electromagnetic Interference Shielding and Joule Heating

作者：Wang, Hu[1];Zhang, Ling[1];Li, Chunzhong[1]

机构：[1]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Mat Sci & Engn,Key Lab Ultrafine Mat,Minist Ed, Shanghai 200237, Peoples R China

年份：2023

卷号：62

期号：16

起止页码：6425

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20231613903546);WOS:【SCI-EXPANDED(收录号:WOS:000970572300001)】；

基金：ACKNOWLEDGMENTS This work was supported by the National Natural Science Foundation of China (22278140 and U22B20143) , the Science and Technology Commission of Shanghai Municipal-ity (22dz1205900) Project supported by Shanghai Municipal Science and Technology Major Project, and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Electromagnetic pulse - Electromagnetic wave interference - Graphene oxide - Joule heating - Oxide films - Signal interference - Styrene - Ultrathin films

摘要：With the problem of electromagnetic interference (EMI) increasingly serious, the development of lightweight and flexible electromagnetic shielding composite films with excellent Joule heating performance and good mechanical properties is of great significance for modern electronic devices. In this study, we prepared aramid nanofiber/aramid nanofiber-poly(3,4-ethylenedioxythiophene):poly-(styrene sulfonate)/polydopamine-modified reduced graphene oxide (ANF/APP/ PRGO) composite films with excellent electromagnetic shielding properties and electrical heating properties by stepwise vacuum filtration. With high conductivity (124.10 S/cm) and multi-interface electromagnetic wave reflection caused by the layered structure, the composite films achieve an EMI shielding effectiveness (SE) as high as 40.52 dB at 8.2-12.4 GHz (X-band) with a low thickness (-,22 mu m). At the same time, the composite films also exhibit excellent electrical heating performance with fast response and cycle stability, which can reach a surface saturation temperature as high as 127.6 degrees C under an applied voltage of 7 V. Therefore, it can be envisaged that the ANF/APP/PRGO composite films have certain practical application value in the fields of electromagnetic shielding and electric heating.