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Integration of Electrical Heating and Infrared-Reflection with Connected Ag Network for Personal Thermal Management
Xi Yu1,2, Xuan Kong1, Wanhao Xu1
1Guangdong-Hong Kong Joint Laboratory for New Textile Materials, School of Textile Materials and Engineering, Wuyi University, Jiangmen, 529020, China.
ACS Applied Materials & Interfaces
|August 13, 2025
Summary
Researchers developed advanced Nomex/silver nanofibrous membranes for superior warmth. This innovative textile offers both active electrical heating and passive infrared reflection for extreme cold protection.
Area of Science:
- Materials Science
- Textile Engineering
- Nanotechnology
Background:
- Effective thermal management in cold climates requires advanced materials.
- Integrating active heating and passive insulation in textiles presents significant challenges.
- Existing solutions often lack dual-mode thermal regulation capabilities.
Purpose of the Study:
- To develop a facile method for fabricating dual-mode thermal regulating membranes.
- To create Nomex/silver (Ag) nanofibrous membranes with electrical heating and infrared-reflecting properties.
- To evaluate the thermal performance and potential applications of the fabricated membranes.
Main Methods:
- Electrospinning of Nomex nanofibers.
- Dip-coating with silver (Ag) nanoparticles.
- Hot-pressing to form a connected Ag network.
- Characterization of electrical conductivity and thermal properties.
Main Results:
- Fabricated Nomex/Ag nanofibrous membranes with a conductive, heat-reflecting Ag network.
- Achieved high electrical conductivity (1268 S/cm) for rapid active heating (>99.7 °C in 5 min at 1 V).
- Demonstrated passive infrared reflection and insulation, creating a 1.7 °C temperature difference.
Conclusions:
- The developed Nomex/Ag nanofibrous membrane offers effective dual-mode thermal regulation.
- This technology shows significant potential for next-generation wearable warmth-retaining textiles.
- The facile fabrication method enables scalable production of advanced thermal textiles.
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