相关实验视频

Updated: May 31, 2025

Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices

Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices

Published on: March 27, 2019

通过Cassie-Baxter州的表面几何学调整湿特性

Talya Scheff¹, Florence Acha¹, Nathalia Diaz Armas¹

¹Department of Plastics Engineering, University of Massachusetts Lowell, Lowell, MA 01854, USA.

Biomimetics (Basel, Switzerland)

|January 24, 2025

概括

超疏水涂层提高了自我清洁,并减少了阻力. 表面几何,特别是固体分量,是控制这些先进材料上的水滴行为 (接触角度) 的关键.

科学领域:

材料科学材料科学材料科学
表面化学表面化学
纳米技术纳米技术

背景情况:

超疏水涂层在自清洁,防腐蚀和阻力降低等应用中提供了显著的优势.
了解表面结构和湿特性之间的关系对于优化涂层性能至关重要.

研究的目的:

研究表面几何如何影响卡西-巴克斯特状态下运行的超水表面的静态,动态和滑动接触角度.
确定关键的几何参数,控制微型图案表面的湿行为.

主要方法:

使用 lithography 制造化处理的微柱阵列.
几何参数的系统变化,包括固体分数 (φs),边缘间距 (L) 和微柱子排列.
测量静态,动态 (前进和后退) 和滑动接触角度.

主要成果:

固体部分被确定为影响动态和滑动接触角度的主要因素.
微柱子的形状和排列对观察到的湿行为产生了最小的影响.
卡西-巴克斯特模型为回退角度提供了准确的预测,但显示出前进角度的局限性.

结论:

表面几何,特别是固体分数,是调整超水性湿性能的关键设计参数.
获得的洞察力可以指导针对特定环境应用的先进涂料的合理设计,并为特定环境应用量身定制的接触角度.
需要进一步完善湿模型,以准确地预测复杂的微结构表面的前进角度.

关键词:

卡西·巴克斯特州接触角度歇斯底里学 (CAH)动态湿动态湿动态湿摄影光刻法 (photolithography) 是一种光刻法.微柱子是一种微柱子.超水性是一种超水性.表面几何学表面几何学

更多相关视频

Pool-Boiling Heat-Transfer Enhancement on Cylindrical Surfaces with Hybrid Wettable Patterns

Pool-Boiling Heat-Transfer Enhancement on Cylindrical Surfaces with Hybrid Wettable Patterns

Published on: April 10, 2017

Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy

Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy

Published on: May 27, 2018

相关概念视频

Fineness of Cement

Fineness of Cement

The fineness of cement directly influences the rate of hydration, as the hydration begins at the surface of the cement particles. In addition to hydration, the fineness of cement is vital for various properties of concrete including workability, gypsum requirement, and long-term behavior. The fineness of cement is represented in terms of the specific surface of cement which is typically measured in square meters per kilogram, with several methods available for this determination.
Direct...