Advanced Functional Materials·· 19 小时前精选AI 评分58
水性聚氨酯微相分离水凝胶实现环境自适应热管理
Hydration‐Induced Environmentally‐Adaptive Thermal Management with Microphase Separated Hydrogel
AI 导读
研究团队通过水性聚氨酯的水诱导微相分离并借助吸湿性层状网络，制备出从致密固体演化为层状多孔结构的水凝胶，太阳调制能力约0.8、中红外发射率约0.95。该水凝胶在直接太阳辐照下实现9°C温度跨度的动态热调节和约6°C的低于环境辐射制冷。原位引入光吸收剂或吸湿剂后，还可分别获得太阳能加热/制冷双模式功能和除湿-制冷协同性能，且制备过程绿色、可规模化。
推荐理由
原文给出水诱导微相分离形成层状多孔结构及太阳调制能力约0.8、中红外发射率约0.95，读者可据此判断这类水凝胶在自适应热管理中的适用区间。
创新点
利用水诱导微相分离让水凝胶从致密块体原位演化为层状多孔结构，把太阳调制与中红外发射的光学特性同湿度响应结构变化耦合起来，实现随环境变化的自适应热管理。
图表、补充材料与最终表述以原文为准。阅读原文
来源：Advanced Functional Materials · doi.org
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