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由具有低Young's接触角的材料制造的超疏水纳米涂层

Chen Yang¹, Pengfei Li¹, Yong Wei^1,2

¹State Key Laboratory for Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China.

Langmuir : the ACS journal of surfaces and colloids

|January 21, 2025

概括

研究人员开发了一种使用低YoungYoung的新型超水纳米涂层.

科学领域:

材料科学材料科学材料科学
表面化学表面化学

背景情况:

超水性 (明显接触角度>150°) 通常需要具有高接触角度 (>90°) 的材料.
在没有专门设计的情况下,在低接触角度 (<90°) 的材料中实现超性具有重大挑战.

研究的目的:

开发一种新的超性纳米涂层,使用低的接触角度材料.
调查这种系统中超性反应的潜在机制.
建立一个基于表面能量预测湿行为的模型.

主要方法:

通过喷雾沉积乙醇悬浮液制造超水性纳米涂层.
使用双A环氧树脂 (EPA) 具有较低的扬氏接触角度 (∼70°) 和性SiO2纳米粒子.
开发一个湿过渡模型来分析表面能量效应.

主要成果:

通过使用低的接触角EPA. 实现了超疏水纳米涂层,表面接触角为≤155°.
证明了来自树脂的纳米涂料的超性,这些树脂的扬氏接触角度低至58°.
确定了持续的三维结平衡作为超性机制.
量化了表面能量对滴水表面结构稳定性和EPA度对湿行为的影响.

结论:

通过控制的纳米结构和结合,可以使用低扬接触角度材料实现超性.
开发的湿过渡模型提供了对表面能量对湿特性影响的见解.
这项研究为从低表面能量材料设计超水表面提供了一条新的途径.

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