MXene/聚苯胺复合块体材料制备及电磁屏蔽性能研究  

Preparation and electromagnetic shielding performance study of MXene/polyaniline bulk composites

作　　者：郭蕊 朱美玲 任玉洁 王一丁 郑琦 GUO Rui;ZHU Meiling;REN Yujie;WANG Yiding;ZHENG Qi(State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Donghua University,Shanghai 201620,China;College of Materials Science and Engineering,Donghua University,Shanghai 201620,China;Shanghai No.2 High School,Shanghai 200031,China)

机构地区：[1]东华大学纤维材料改性国家重点实验室,上海201620 [2]东华大学材料科学与工程学院,上海201620 [3]上海市第二中学,上海200031

出　　处：《上海工程技术大学学报》2023年第2期133-139,共7页Journal of Shanghai University of Engineering Science

基　　金：上海浦江人才计划项目资助(19PJ1400200);上海市青少年科学创新实践工作站计划项目资助。

摘　　要：电磁屏蔽材料是降低电磁辐射污染的重要手段,其中导电聚合物基复合材料广受关/注.选用MXene二维材料为功能基元,利用超声、机械搅拌和冷冻干燥的方法将MXene均匀分散于聚苯胺基体中,并通过放电等离子体烧结技术制备新型MXene/聚苯胺块体复合材料.结果表明,MXene的高电导率和片层堆积结构可有效提高聚苯胺的电磁屏蔽性能.当MXene质量分数为40%时,复合材料电磁屏蔽性能最优,在8.2~12.4 GHz范围内可达24 dB.Electromagnetic inference(EMI)shielding materials are vital for the reduction of EM radiation pollution,in which conductive polymer-based composites have attracted wide attentions.Herein,MXene/PANI bulk composites were successfully prepared by spark plasma sintering,in which MXene was chosen as the functional 2D materials evenly dispersed in the PANI matrix through ultrasonic,mechanical agitation and freeze-drying methods.Consequently,MXene with high electrical conductivity and lamellar structure effectively improves the EMI shielding performance of PANI.When the content of MXene is 40%,the composites achieve the optimal EMI shielding characteristics of 24 dB in the range of 8.2~12.4 GHz.

关 键 词：聚苯胺复合材料 电磁屏蔽 放电等离子体烧结技术 

分 类 号：TB34[一般工业技术—材料科学与工程]