刘前凯,张杰,孙鹏程,王建平,赵威,杨吟飞,赵国龙,陈妮,李亮,何宁,郝秀清.梯度润湿性图案化表面的制备及其输运性能研究[J].表面技术,2023,52(10):295-303. LIU Qian-kai,ZHANG Jie,SUN Peng-cheng,WANG Jian-ping,ZHAO Wei,YANG Yin-fei,ZHAO Guo-long,CHEN Ni,LI Liang,HE Ning,HAO Xiu-qing.Fabrication of Gradient Wetting Patterned Surface and Its Performance in Transportation[J].Surface Technology,2023,52(10):295-303 |
梯度润湿性图案化表面的制备及其输运性能研究 |
Fabrication of Gradient Wetting Patterned Surface and Its Performance in Transportation |
投稿时间:2022-10-23 修订日期:2022-12-27 |
DOI:10.16490/j.cnki.issn.1001-3660.2023.10.025 |
中文关键词: 纳秒激光 梯度疏水基底 箭形亲水图案 输运距离 润湿性 定向输运 |
英文关键词:nanosecond laser gradient hydrophobic substrate arrow-shaped patterned surface transportation distance wettability directional transportation |
基金项目:江苏省自然科学基金优秀青年基金(BK20190066);国家自然科学基金(51875285);中央高校基本科研业务费(NE2020005);霍英东教育基金会高校青年教师基金(20193218210002,171045) |
作者 | 单位 |
刘前凯 | 南京航空航天大学 机电学院,南京 210016 |
张杰 | 南京航空航天大学 机电学院,南京 210016 |
孙鹏程 | 南京航空航天大学 机电学院,南京 210016;香港城市大学 机械工程系,香港 999077 |
王建平 | 南京航空航天大学 机电学院,南京 210016 |
赵威 | 南京航空航天大学 机电学院,南京 210016 |
杨吟飞 | 南京航空航天大学 机电学院,南京 210016 |
赵国龙 | 南京航空航天大学 机电学院,南京 210016 |
陈妮 | 南京航空航天大学 机电学院,南京 210016 |
李亮 | 南京航空航天大学 机电学院,南京 210016 |
何宁 | 南京航空航天大学 机电学院,南京 210016 |
郝秀清 | 南京航空航天大学 机电学院,南京 210016 |
|
Author | Institution |
LIU Qian-kai | College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China |
ZHANG Jie | College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China |
SUN Peng-cheng | College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China;Department of Mechanical Engineering, City University of Hong Kong, Hong Kong 999077, China |
WANG Jian-ping | College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China |
ZHAO Wei | College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China |
YANG Yin-fei | College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China |
ZHAO Guo-long | College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China |
CHEN Ni | College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China |
LI Liang | College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China |
HE Ning | College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China |
HAO Xiu-qing | College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China |
|
摘要点击次数: |
全文下载次数: |
中文摘要: |
目的 针对液体输运距离短、速度慢等问题,提出一种基于梯度疏水基底的箭形图案化表面,该表面能有效改善液滴的输运性能。方法 对铝合金表面依次进行预处理、激光加工基底、低表面能改性处理和激光加工箭形亲水图案,得到具有良好输运性能的图案化表面。深入研究激光扫描速度对铝合金表面形貌和润湿性的影响。结果 随着激光扫描速度的提高,表面微结构由“微纳分层结构”逐渐变为“亚微米结构”,铝合金表面的粗糙度逐渐变小,导致表面静态接触角由150°左右降至107°左右,动态接触状态由滚动状态变为钉扎状态。另外,随着扫描速度的增加,基底表面O的质量分数从11.2%降至7.7%,F的质量分数从17.6%降至10.6%,表明表面氧化物减少,导致表面对含F有机物的吸附能力减弱,进而导致表面疏水性降低。液滴在基于梯度疏水基底的箭形图案化表面上的输运距离可达到61 mm,相较于均匀疏水基底,提高了34%。结论 采用梯度激光扫描速度和低表面能处理可简单、快速地获得梯度疏水基底,相较于基于均匀疏水基底的图案化表面,液滴在基于梯度疏水基底的图案化表面上的输运性能得到显著提高,液滴自发、定向和高性能的输运在水收集装置、传热设备等方面具有广阔的应用前景。 |
英文摘要: |
Spontaneous transportation of liquid on wetting pattern has promising applications in water-harvesting devices, heat transfer equipment, etc. However, the technology is limited due to the expensive and complex processing techniques, and weak transportation capacities. An arrow-shaped patterned surface based on a gradient hydrophobic substrate is proposed to address the problems of short transportation distance and slow speed, which can effectively improve liquid transportation performance. |
查看全文 查看/发表评论 下载PDF阅读器 |
关闭 |
|
|
|