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Diphylleia Grayi-Inspired Intelligent Temperature-Responsive Transparent Nanofiber Membranes
Cengceng Zhao1, Gaohui Liu1, Yanyan Lin1
1Shanghai Frontier Science Research Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai, 201620, People's Republic of China.
Nano-Micro Letters
|January 4, 2024
Summary
Researchers developed flexible temperature-responsive transparent membranes using polyurethane nanofibers coated with eicosane. This innovation transforms opaque nanofiber membranes into highly transparent materials at 37°C, enabling new applications.
Area of Science:
- Materials Science
- Nanotechnology
- Polymer Science
Background:
- Nanofiber membranes (NFMs) offer flexibility and breathability, making them promising for advanced materials.
- Improving light transmittance in NFMs is challenging due to light reflection at the nanofiber-air interface.
Purpose of the Study:
- To develop a general strategy for creating flexible temperature-responsive transparent (TRT) membranes.
- To achieve a rapid transition of NFMs from opaque to highly transparent within a narrow temperature range.
Main Methods:
- Coating polyurethane nanofibers with the phase change material eicosane using electrospray technology.
- Utilizing the phase transition of eicosane at 37°C to establish a light transmission path.
Main Results:
- The developed TRT membrane exhibits a rapid transformation from opaque to highly transparent.
- Achieved high transmittance (>90%) and a fast response time (5 seconds).
- Demonstrated the first temperature-responsive transparent transition in NFMs.
Conclusions:
- The study presents a novel strategy for enhancing nanofiber membrane transparency.
- The developed TRT membranes have potential applications in intelligent temperature monitoring and anti-counterfeiting devices.
