可穿戴计算机
电子设备和系统的热管理
碳纳米泡沫
材料科学
可穿戴技术
热的
相(物质)
碳纤维
相变
兴奋剂
化学工程
相变材料
纳米技术
复合材料
化学
计算机科学
机械工程
工程类
工程物理
光电子学
多孔性
嵌入式系统
有机化学
复合数
物理
气象学
作者
Yang Li,Xuemei Diao,Peicheng Li,Panpan Li,Yan Gao,Zhiyong Zhao,Xiao Chen,Ge Wang
标识
DOI:10.1016/j.cej.2024.149858
摘要
To cope with the complex and changeable extreme environments, extending multifunctionality is crucial for potable smart wearable composite phase change materials (PCMs). Herein, we developed advanced Co/N co-doped carbon foam-based multifunctional "five-in-one" composite PCMs integrating dual-temperature thermal management, light-triggered heating, waterproof, flame retardant, and microwave absorption through high-temperature calcination of melamine foam@ZIF67 and melting encapsulation of paraffin wax (PW). Benefiting from the strong full-spectrum absorption, fast photon and phonon transport, and local surface plasmon resonance effect, our designed foam-based composite PCMs exhibited an ultrahigh photothermal conversion efficiency of 95.17 %. More importantly, foam-based composite PCMs demonstrated excellent thermal management, structural stability and thermal storage stability after undergoing 300 heating–cooling cycles. Furthermore, foam-based composite PCMs showed superior microwave absorption (RLmin = -57.93 dB), good flame retardancy and satisfactory hydrophobicity (contact angle > 100°). Thus, our developed multifunctional foam-based composite PCMs provide great potential for personalized thermal management and anti-radiation smart wearables even in harsh environments (e.g., rain, snow, sweat, fire, extreme cold, extreme heat and electromagnetic interference), creating a versatile platform for smart wearable light-triggered phase change heater with on-demand properties.
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