可变相的元结构可实现动态下环境湿度和热调节
Haiyan Ni1,2, Xuan Zhang3, Jianyong Yu4
1State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China.
ACS applied materials & interfaces
|October 30, 2024
概括
研究人员开发了一种用于个人热管理 (PTM) 系统的新型相变元结构. 这种零能耗材料为先进的PTM应用提供了卓越的热舒适性,湿度透性和防水性.
科学领域:
- 材料科学 材料科学 材料科学
- 织工程 织工程 织工程
- 热管理 热管理
背景情况:
- 预防热感冒疾病需要先进的个人热管理 (PTM) 系统.
- 零能源输入控制技术对于节能PTM至关重要.
- 当前的热调节材料在舒适性和环境下温度维护方面扎.
研究的目的:
- 开发一种简单,可靠的方法来生产可相变的元面料.
- 为了创建具有高透性和热舒适性的PTM材料.
- 为了展示一个零能源解决方案,用于先进的个人热调节.
主要方法:
- 热塑性聚氨和相变囊 (PCC) 颗粒的同时湿度辅助电喷和电.
- 形成一个稳定的,自我纠的3D纳米纤维网络结构.
- 热,机械和防水性能的表征.
主要成果:
- 这种元织物表现出极好的热控制,在100个循环后,相变度为115.05 J g−1.
- 高湿度透性 (13.1 kg m−2 d−1) 和超疏水性 (与水接触角度为158.7°).
- 经过证明的机械强度 (10.5 MPa的抗拉强度) 和防水性能 (87 kPa的液压压力).
结论:
- 开发的可变相元结构是下一代PTM系统的成本效益高的材料.
- 该材料为热调节和佩戴者舒适提供了一个有前途的零能源解决方案.
- 独特的结构提供了出色的热和水管理特性.
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