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Published on: March 13, 2017
An infrared-transparent textile with high drawing processed Nylon 6 nanofibers
Zipeng Chen1, Qian Zhang2,3, Liping Ding4,5
1National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Frontiers Science Center for Critical Earth Material Cycling, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, China.
Researchers developed infrared-transparent Nylon 6 textiles using a novel high drawing process. This innovation significantly enhances personal thermal comfort and reduces energy consumption for cooling applications.
Area of Science:
- Materials Science
- Textile Engineering
- Thermal Management
Background:
- Infrared (IR)-transparent radiative cooling textiles offer potential for personal thermal comfort and reduced energy use.
- Realizing IR transparency in traditional textile materials remains a challenge for widespread adoption.
Purpose of the Study:
- To develop IR-transparent textiles from a common material, Nylon 6 (PA6).
- To investigate a process for modifying PA6 to enable IR transparency and radiative cooling.
Main Methods:
- A high drawing process with rapid solvent evaporation was employed on Nylon 6 (PA6).
- The process altered molecular chain conformations and crystal structures to reduce IR absorption.
- Fiber morphology was controlled at the nanoscale to minimize IR reflection.
Main Results:
- The modified PA6 textiles exhibited significant IR transparency.
- A reduction in IR absorption and reflection was achieved by altering molecular and structural properties.
- Testing showed a 2.1°C cooler experience compared to cotton, with potential for ~20% indoor energy savings.
Conclusions:
- The developed process enables the creation of IR-transparent PA6 textiles from a conventional material.
- This approach offers a viable pathway for large-scale application of radiative cooling textiles.
- The study presents an innovative method for personal thermal management through IR radiation control.
