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An Innovative Azobenzene-Based Photothermal Fabric with Excellent Heat Release Performance for Wearable Thermal Management Device
Small ( IF 13.0 ) Pub Date : 2024-09-10 , DOI: 10.1002/smll.202404310 Yudong Wu 1, 2 , Liqi Dong 1 , Shuxin Tang 1 , Xiao Liu 2 , Yulin Han 1 , Songge Zhang 3, 4 , Kai Liu 2 , Wei Feng 5
Small ( IF 13.0 ) Pub Date : 2024-09-10 , DOI: 10.1002/smll.202404310 Yudong Wu 1, 2 , Liqi Dong 1 , Shuxin Tang 1 , Xiao Liu 2 , Yulin Han 1 , Songge Zhang 3, 4 , Kai Liu 2 , Wei Feng 5
Affiliation
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Azobenzene (azo)-based photothermal energy storage systems have garnered great interest for their potential in solar energy conversion and storage but suffer from limitations including rely on solvents and specific wavelengths for charging process, short storage lifetime, low heat release temperature during discharging, strong rigidity and poor wearability. To address these issues, an azo-based fabric composed of tetra-ortho-fluorinated photo-liquefiable azobenzene monomer and polyacrylonitrile fabric template is fabricated using electrospinning. This fabric excels in efficient photo-charging (green light) and discharging (blue light) under visible light range, solvent-free operation, long-term energy storage (706 days), and good capacity of releasing high-temperature heat (80–95 °C) at room temperature and cold environments. In addition, the fabric maintains high flexibility without evident loss of energy-storage performance upon 1500 bending cycles, 18-h washing or 6-h soaking. The generated heat from charged fabric is facilitated by the Z-to-E isomerization energy, phase transition latent heat, and the photothermal effect of 420 nm light irradiation. Meanwhile, the temperature of heat release can be personalized for thermal management by adjusting the light intensity. It is applicable for room-temperature thermal therapy and can provide heat to the body in cold environments, that presenting a promising candidate for wearable personal thermal management.
中文翻译：
一种用于可穿戴热管理器件的创新偶氮苯基光热织物，具有优异的散热性能
基于偶氮苯 （azo） 的光热储能系统因其在太阳能转换和存储方面的潜力而受到极大的关注，但存在充电过程依赖溶剂和特定波长、存储寿命短、放电时放热温度低、刚性强和耐磨性差等局限性。为了解决这些问题，采用静电纺丝法制备了一种由四邻位氟光液化偶氮苯单体和聚丙烯腈织物模板组成的偶氮基织物。这种织物在可见光范围内高效充电（绿光）和放电（蓝光）、无溶剂操作、长期储能（706 天）以及在室温和寒冷环境下释放高温热量 （80-95 °C） 的良好能力。此外，该织物在 1500 次弯曲循环、18 小时洗涤或 6 小时浸泡后保持了高柔韧性，而不会明显损失储能性能。带电织物产生的热量由 Z 到 E 异构化能、相变潜热和 420 nm 光照射的光热效应促进。同时，可以通过调整光强度来个性化散热温度以进行热管理。它适用于室温热疗，可以在寒冷环境中为身体提供热量，是可穿戴个人热管理的有前途的候选者。
更新日期：2024-09-10
中文翻译：
一种用于可穿戴热管理器件的创新偶氮苯基光热织物，具有优异的散热性能
基于偶氮苯 （azo） 的光热储能系统因其在太阳能转换和存储方面的潜力而受到极大的关注，但存在充电过程依赖溶剂和特定波长、存储寿命短、放电时放热温度低、刚性强和耐磨性差等局限性。为了解决这些问题，采用静电纺丝法制备了一种由四邻位氟光液化偶氮苯单体和聚丙烯腈织物模板组成的偶氮基织物。这种织物在可见光范围内高效充电（绿光）和放电（蓝光）、无溶剂操作、长期储能（706 天）以及在室温和寒冷环境下释放高温热量 （80-95 °C） 的良好能力。此外，该织物在 1500 次弯曲循环、18 小时洗涤或 6 小时浸泡后保持了高柔韧性，而不会明显损失储能性能。带电织物产生的热量由 Z 到 E 异构化能、相变潜热和 420 nm 光照射的光热效应促进。同时，可以通过调整光强度来个性化散热温度以进行热管理。它适用于室温热疗，可以在寒冷环境中为身体提供热量，是可穿戴个人热管理的有前途的候选者。
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