使用疏水孔生成单分散泡:扩展的泰特定律
Bo Liu1, Hao Zhang1, Haiqiang Yang1
1Department of Mechanical and Power Engineering, East China University of Science and Technology, No. 130 Meilong Road, Lingyunlu Street, Xuhui District, Shanghai 200237, China.
ACS omega
|May 6, 2024
概括
疏水表面从沉浸的孔中产生单分散泡,与疏水表面的索特平均直径相匹配. 这种受控的泡产生有利于精确的工业应用,如半导体制造.
科学领域:
- 流体动力学 流体动力学
- 表面科学是一门科学.
- 材料科学是一种材料科学.
背景情况:
- 在各种行业中,使用潜水孔产生泡至关重要.
- 表面的湿透性显著影响泡离开直径.
- 现有的方法往往缺乏对泡大小分布的精确控制.
研究的目的:
- 为了调查泡的产生和脱离水性 perfluoroalkoxy (PFA) 管在水中.
- 为了比较疏水性PFA孔与疏水性石英孔的泡特性.
- 了解不同气体流量下气泡形成的动态.
主要方法:
- 使用在疏水型PFA管上钻孔的孔 (0.3-2毫米).
- 气体输入速率从33毫升/分钟到200毫升/分钟不等.
- 分析了泡生成和离开动态,与泰特定律进行比较.
主要成果:
- 疏水性PFA孔产生单分散泡,不同于具有更广泛分布的疏水性石英孔.
- 来自PFA孔的Sauter平均直径与石英孔的直径非常接近.
- 动态泡条件,通过持续的气体流入来解释,增加了泡体积,同时遵守泰特定律.
结论:
- 在动态条件下使用疏水表面可以实现单分散泡生成.
- 这种受控的泡生成为需要精确泡大小的行业提供了显著的优势.
- 应用包括半导体制造中的泡辅助湿蚀刻和清洁工艺.
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