纳米流体滴滴对刚性和弹性的超水表面的影响
Chenlu Qian1, Xiaoyang Li1, Qiang Li1
1MIIT Key Laboratory of Thermal Control of Electronic Equipment, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
ACS omega
|May 27, 2024
概括
研究人员开发了刚性和弹性的超水表面,以对抗冰的积累. 这些表面显著减少水滴接触时间和传播,为航空和能源等行业提供强大的抗结冰解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 表面工程是什么?表面工程是什么?
- 纳米技术纳米技术
背景情况:
- 冰在寒冷的表面积累在电力传输,风力轮机和航空等行业带来了重大挑战.
- 现有的抗结冰方法难以有效地减轻寒冷表面上的纳米流体滴.
- 超疏水表面具有增强排水性和抗结冰性能的潜力.
研究的目的:
- 调查刚性和弹性的超表面在缓解冰积累方面的有效性.
- 通过减少纳米流体滴滴接触时间和扩散比率来提高反水性能.
- 阐明对刚性和弹性超表面的抗结冰的基本机制.
主要方法:
- 一个刚性超水铜 (Cu) 表面与微柱状阵列的制造.
- 开发一个弹性的超水性聚二甲基素 (PDMS) 表面.
- 描述反水性能,包括纳米流体滴滴的接触时间和传播比.
主要成果:
- 刚性和弹性超表面都显示出显著减少纳米流体滴滴接触时间.
- 在开发的表面上观察到纳米流体滴的传播比率下降.
- 刚性表面使用稳定的气来最大限度地减少接触面积和传热;弹性表面利用表面弹性来快速脱落滴和抑制喷.
结论:
- 刚性和弹性的超表面有效地增强排水能力,提供强大的抗结冰能力.
- 空气 (刚性) 和表面弹性 (弹性) 的独特机制有助于卓越的抗结冰性能.
- 这项研究为改善各种工业应用中的反水性提供了一种新的方法.
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