材料科学
导电体
纳米技术
极限抗拉强度
复合数
聚合物
电导率
电磁屏蔽
粘附
复合材料
物理化学
化学
作者
Peng Yi,Haihan Zou,Yuanhang Yu,Xufeng Li,Zhenyang Li,Gao Deng,Chunyan Chen,Mingliang Fang,Junzhe He,Xin Sun,Xiaofang Liu,Jianglan Shui,Rong Yu
出处
期刊:ACS Nano
[American Chemical Society]
日期:2022-09-12
卷期号:16 (9): 14490-14502
被引量:73
标识
DOI:10.1021/acsnano.2c04863
摘要
Stretchable conductive fibers are an important component of wearable electronic textiles, but often suffer from a decrease in conductivity upon stretching. The use of liquid metal (LM) droplets as conductive fillers in elastic fibers is a promising solution. However, there is an urgent need to develop effective strategies to achieve high adhesion of LM droplets to substrates and establish efficient electron transport paths between droplets. Here, we use large-sized MXene two-dimensional conductive materials to modify magnetic LM droplets and prepare MXene/magnetic LM/poly(styrene-butadiene-styrene) composite fibers (MLMS fibers). The MXene sheets decorated on the surface of magnetic LM droplets not only enhance the droplet adhesion to substrate but also bridge adjacent droplets to establish efficient conductive paths. MLMS fibers show several-fold improvements in tensile strength and elongation and a 30-fold increase in conductivity compared with pure LM-filled fibers. These conductive fibers can be easily woven into multifunctional textiles, which exhibit strong electromagnetic interference shielding and stable Joule heating performances even under large tensile deformation. In addition, other advantages of MLMS textiles, such as high gas/liquid permeability, strong chemical resistance (acid and alkaline conditions), high/low-temperature tolerance (-40-150 °C) and water washability, make them particularly suitable for wearable applications.
科研通智能强力驱动
Strongly Powered by AbleSci AI