Related Experiment Video
Updated: Jul 19, 2025
09:58
Fabrication of Ti3C2 MXene Microelectrode Arrays for In Vivo Neural Recording
Published on: February 12, 2020
13.5K
Dual Protective Porous Ti3 C2 Tx MXene/Polyimide Composite Film for Thermal Insulation and Electromagnetic
Renjie Ding1, Qian Yan1, Fuhua Xue1
1National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin, 150080, P. R. China.
Small (Weinheim an Der Bergstrasse, Germany)
|August 18, 2023
Summary
Researchers developed advanced porous composite films using Ti3C2Tx MXene and polyimide. These films offer exceptional electromagnetic interference (EMI) shielding and thermal insulation for sensitive electronics.
Area of Science:
- Materials Science
- Nanotechnology
- Electronics Engineering
Background:
- The proliferation of 5G technology necessitates advanced electromagnetic interference (EMI) shielding and thermal management solutions for electronic devices.
- Portable, thermal-sensitive electronics demand materials with superior thermal insulation, which are often difficult to integrate with effective EMI shielding.
- Achieving ultrathin EMI shielding materials with ultralow thermal conductivity presents a significant challenge in materials development.
Purpose of the Study:
- To fabricate dual-protective porous composite films with combined EMI shielding and thermal insulation properties.
- To overcome the limitations of current materials in meeting stringent thermal and EMI protection requirements for advanced electronics.
- To explore the potential of Ti3C2Tx MXene and polyimide in creating high-performance composite materials.
Main Methods:
- Fabrication of porous composite films using Ti3C2Tx MXene, polyimide, and polymethyl methacrylate (PMMA) sacrificial templates.
- Optimization of composite film structure to minimize contact thermal resistance and Kapitza resistance.
- Characterization of thermal conductivity, EMI shielding effectiveness (SSE), and specific shielding efficiency (SSE/t).
Main Results:
- The developed composite film exhibits ultralow thermal conductivity of 0.0136 W m⁻¹ K⁻¹.
- Superior EMI shielding effectiveness of 63.0 dB was achieved.
- High specific shielding efficiency (SSE/t) of 31651.2 dB cm² g⁻¹ was demonstrated.
- The material also showed excellent active and passive heating capabilities via Joule heating and photothermal conversion.
Conclusions:
- The dual-protective porous composite films effectively address the dual requirements of EMI shielding and thermal insulation.
- The optimized composite material is suitable for thermal management applications in portable electronic devices.
- This research provides a pathway for designing advanced materials for cutting-edge electronic applications.
