High MXene loading, nacre-inspired MXene/ANF electromagnetic interference shielding composite films with ultralong strain-tofailure and excellent Joule heating performance
作者机构:School of Physical Science and EngineeringBeijing Jiaotong UniversityBeijing 100044China College of Chemistry and Materials EngineeringBeijing Technology and Business UniversityBeijing 100048China Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of EducationSchool of ChemistryBeihang UniversityBeijing 100191China
出 版 物:《Nano Research》 (纳米研究(英文版))
年 卷 期:2024年第17卷第3期
页 面:2061-2069页
核心收录:
学科分类:08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0703[理学-化学] 0702[理学-物理学]
基 金:Financial support from the Talent Fund of Beijing Jiaotong University(No,2023XKRC015) the National Natural Science Foundation of China(No.52172081)is gratefully acknowledged
主 题:bioinspired aramid nanofiber networks ultralong strain-to-failure toughening mechanism electromagnetic interference shielding
摘 要:The high power density and intelligence of next-generation flexible electronic devices bring many challenges to fabricate flexible composite films with electromagnetic interference(EMI)shielding effectiveness(SE)property and excellent toughness via a simple ***,inspired by the layered structure and biopolymer matrix networks in natural nacre,nacre-like layered Ti_(3)C2TX(MXene)/aramid nanofiber(ANF)films were fabricated through sol-gel,vacuum-assisted filtration,and ***-dimensional(3D)interconnected aramid nanofibers networks between adjacent layered MXene result in an ultralong strain-to-failure of the *** though the functional filler MXene contents are as high as 60 wt.%and 70 wt.%,the strain-to-failure of the films could reach astonishing values of 18.34%±1.86%and 14.43%±1.26%,*** the tensile strength could maintain about 85 ***,with such a high filler,the film can also withstand double folding and vigorous rubbing without damage,which could better adapt to a harsh application *** result means that this work provides a convenient way to prepare other high functional filler composite films with excellent mechanical *** EMI SE values could reach 45 and 52.15 dB at 60 wt.%and 70 wt.%MXene in 8.2–12.4 ***,the films have prominent Joule heating properties,high sensitivity(15 s),small voltage operation(0.5 V),and high operation constancy(1300 s).Therefore,nacre-inspired MXene/ANF composite films in this work have ability to apply in many areas including communication technology,military,and aerospace.