Flexible multilayered MXene/thermoplastic polyurethane films with excellent electromagnetic interference shielding, thermal conductivity, and management performances

The prosperous development of smart wearable electronic devices has caused extensive demand for flexible composite films with integrated electromagnetic interference (EMI) shielding and thermal management performances. However, it is still a challenge to prepare flexible composite films with desirab...

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Bibliographic Details
Published inAdvanced composites and hybrid materials Vol. 4; no. 2; pp. 274 - 285
Main Authors Gao, Qingsen, Pan, Yamin, Zheng, Guoqiang, Liu, Chuntai, Shen, Changyu, Liu, Xianhu
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 01.06.2021
Subjects
Ceramics
Chemistry and Materials Science
Composites
Glass
Materials Engineering
Materials Science
Natural Materials
Original Research
Polymer Sciences
Thin films
Electromagnetic interference shielding
Electrical properties
Polymer-matrix composites (PMCs)
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Summary:The prosperous development of smart wearable electronic devices has caused extensive demand for flexible composite films with integrated electromagnetic interference (EMI) shielding and thermal management performances. However, it is still a challenge to prepare flexible composite films with desirable properties. Herein, the flexible multilayered MXene/thermoplastic polyurethane films were prepared via a simple layer-by-layer spraying technique. The multilayered films with 28.6 wt% MXene and 52-µm thickness exhibit high electrical conductivity of 1600 S/m, excellent EMI shielding effectiveness of 50.7 dB in the X-band, and outstanding specific shielding effectiveness of 7276 dB.cm 2 g −1 . Meanwhile, a high in-plane thermal conductivity of 6.31 W/(m.k) and low cross-plane thermal conductivity of 0.42 W/(m.k) were obtained. Besides, the obtained films exhibit excellent Joule heating performance (113 °C) with low voltage (5 V), fast response time (< 10 s), excellent heating stability, and efficient de-icing as well as potential thermal stealth performance. Graphical abstract The multilayered MXene/TPU films were prepared by layer-by-layer spraying and exhibited excellent EMI shielding, thermal conductivity, and management performances.
ISSN:2522-0128
2522-0136
DOI:10.1007/s42114-021-00221-4