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Hydrophobic Multilayered PEG@PAN/MXene/PVDF@SiO Composite Film with Excellent Thermal Management and Electromagnetic Interference Shielding for Electronic Devices. | LitMetric

AI Article Synopsis

  • There’s a need for advanced materials to protect electronic devices from electromagnetic interference (EMI) as the electronic industry grows rapidly.* -
  • A new PEG@PAN/MXene@PVDF@SiO flexible composite film was developed using various fabrication techniques, showing impressive thermal and EMI shielding properties.* -
  • This composite not only shields devices from EMI in the X-band but also enhances thermal management and exhibits hydrophobic characteristics, making it suitable for use in humid environments.*

Article Abstract

With the rapid development of electronic industry, it's pressing to develop multifunctional electromagnetic interference (EMI) shielding materials to ensure the stable operation of electronic devices. Herein, multilayered flexible PEG@PAN/MXene (TiCT)/PVDF@SiO (PMF) composite film has been constructed from the level of microstructure design via coaxial electrospinning, coating spraying, and uniaxial electrospinning strategies. Benefiting from the effective encapsulation for PEG and high conductivity of MXene coating, PEG@PAN/MXene composite film with MXene coating loading density of 0.70 mg cm exhibits high thermal energy storage density of 120.77 J g and great EMI shielding performance (EMI SE of 34.409 dB and SSE of 49.086 dB cm g) in X-band (8-12 GHz). Therefore, this advanced composite film can not only help electronic devices prevent the influence of electromagnetic pollution in the X-band but also play an important role in electronic device thermal management. Additionally, the deposition of nano PVDF@SiO fibers (289 ± 128 nm) endowed the PMF composite film with great hydrophobic properties (water contact angle of 126.5°) to ensure the stable working of hydrophilic MXene coating, thereby breaks the limitation of humid application environments. The finding paves a new way for the development of novel multifunctional EMI shielding composite films for electronic devices.

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Source
http://dx.doi.org/10.1002/smll.202402938DOI Listing

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