Preparation of CF/Ni-Fe/CNT/silicone layered rubber for aircraft sealing and electromagnetic interference shielding applications

作     者：Wanying LUAN Qin WANG Qi SUN Yinxiang LU Wanying LUAN;Qin WANG;Qi SUN;Yinxiang LU

作者机构：Department of Materials ScienceFudan UniversityShanghai 200433China 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2021年第34卷第10期

页      面：91-102页

核心收录：

学科分类：08[工学] 082501[工学-飞行器设计] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0825[工学-航空宇航科学与技术] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(No.U1830108) the Innovation Foundation of Shanghai Aerospace Science and Technology,China(No.SAST2018-061) the Exploratory Research Project of “Yanchang Petroleum(Group)-Fudan University”,China。 

主　　题：Electroless plating Electromagnetic interference shielding Heating effects Nickel-iron(Ni-Fe)coating Sealing rubber 

摘      要：To meet the needs of preventing information leakage in space engineering and military industry,an efficient method was introduced to obtain layered electromagnetic shielding sealing rubber.The carbon fiber,Ni-Fe coating,and Carbon Nano Tube(CNT)were combined by chemical plating and in-situ polymerization to obtain a lightweight(0.14 g/cm^(2))and thin(1 mm thick)Carbon fiber Fabric(CF)/Ni-Fe/CNT/silicone layered electromagnetic shielding composites.The layered material obtained by adjusting the electroless plating time exhibited a high Shielding Efficiency(SE)of 60.2–85.5 d B in the range of 0–4800 MHz,which can be used for aviation electromagnetic shielding.Carbon fibers and carbon nanotubes mainly attenuated electromagnetic waves through absorption loss,while the nickel-iron alloy coating through reflection loss interacted with the magnetic vector of incident Electro Magnetic(EM)radiation and magnetic dipoles,therefore,the EM Interference(EMI)shielding composite attenuated EM waves with the“absorptionreflection-absorptioncooperative interaction.Moreover,the flexible fabric substrate adhered with silicone rubber possessed a breaking elongation of 52.3%,which can be utilized as a good sealing material.Simultaneously,the outstanding exothermicity(67.2℃ under the applied voltage of 5 V)makes it possible to be applied in electric heating area.The electromagnetic shielding composites prepared in this paper have good potential in the fields of precision electronic equipment and aviation systems.