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Published on: January 7, 2019
Ultrarobust alginate-based temperature sensing fiber across subzero to above zero self-healing performance enabled by
Xiaoqian Li1, Xingyu He1, Mi Zhou1
1State Key Laboratory of New Textile Materials and Advanced Processing, Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing, School of Textile Science and Engineering, Wuhan Textile University, Wuhan, 430200, China.
Carbohydrate Polymers
|May 22, 2026
Summary
This study introduces a novel subzero self-healing temperature-sensing (SST) fiber made from polysaccharides. The innovative fiber demonstrates remarkable self-healing at low temperatures and broad temperature-sensing capabilities for wearable electronics.
Area of Science:
- Materials Science
- Polymer Chemistry
- Wearable Technology
Background:
- Polysaccharide-based fibers are promising for wearable electronics due to their green and durable nature.
- Effective self-healing of these fibers in subzero environments remains a significant challenge.
Purpose of the Study:
- To develop a subzero self-healing temperature-sensing (SST) fiber with enhanced durability and wide-temperature adaptability.
- To investigate the self-healing mechanisms and temperature-sensing performance of the novel fiber.
Main Methods:
- Incorporation of tannic acid-Fe3+ nanospheres (TAN) into a sodium alginate/oxidized sodium alginate/carboxymethyl chitosan matrix.
- Addition of Ti3C2Tx MXene nanosheets for temperature sensing.
- Evaluation of self-healing efficiency, stretchability, and temperature-sensing range.
Main Results:
- The SST fiber exhibits exceptional subzero self-healing, retaining 65.7% strength at -10°C.
- It shows high water-responsive self-healing efficiency (97.64% at 25°C) and enhanced stretchability (approx. 65%).
- The fiber accurately senses temperatures from 50 to 500°C with a linear voltage-temperature correlation (R² = 0.99).
Conclusions:
- The developed SST fiber offers a viable approach for bio-based temperature-sensing fibers with wide-temperature-adaptive self-healing.
- This innovation enhances the reliability and durability of wearable electronics in diverse environmental conditions.
Keywords:
Multiple dynamic bondsPolyphenol-nanosphereSodium alginateSubzero self-healingTemperature-sensing fiber
