期刊
ACS APPLIED MATERIALS & INTERFACES
卷 13, 期 50, 页码 60478-60488出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c19890
关键词
Ti3C2Tx MXene; spray-coating; wrinkled structure; stretchable EMI shielding; electro/photo-thermal conversion
资金
- National Natural Science Foundation of China [21704096, 51703217, 12072325]
- Henan Province Natural Science Project [20A430028]
This research demonstrates the fabrication of stretchable MXene-coated thermoplastic polyurethane (TPU) fabrics with effective EMI shielding and photothermal conversion abilities. The unique wrinkled MXene-coating layer enhances the fabrics' stretchable heat abilities and enhances photothermal conversion performance. This study offers a novel strategy for designing versatile wearable shielding fabrics.
Stretchability and multifunctional heating abilities are highly desired for wearable electromagnetic interference (EMI) shielding fabrics to tackle the growing electromagnetic pollution for special crowd, such as pregnant women. Herein, we fabricated stretchable MXene-coated thermoplastic polyurethane (TPU) fabrics by simple uniaxial prestretching and spraying methods. The obtained unique wrinkled structure endowed the film with effective strain-invariant electrical conductivity and EMI shielding properties. Specifically, the prepared stretchable film with an extremely low MXene loading (0.417 mg cm(-2)) exhibited a stable EMI shielding effectiveness of approximately 30 dB under 50% tensile strain and durability during stretching and bending cycles. More importantly, owing to the high electrical conductivity and localized surface plasmon resonance (LSPR) effect of the MXene layer, the stretchable fabrics exhibited excellent Joule heating (up to 104 degrees C at a voltage of 5 V) and superior photothermal conversion abilities. Moreover, the unique wrinkled MXene-coating layer not only endows the fabrics with stretchable heat abilities but also enhances the photothermal conversion performance by increasing the light absorption area and travel path. We believe that this study offers a novel strategy for the versatile design of stretchable and multifunctional wearable shielding fabrics.
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