Thermodynamic analysis and prediction on the wetting properties of pore array superhydrophobic laser-texturing surfaces

时间:2021-09-16作者:浏览量:157


Thermodynamic analysis and prediction on the wetting properties of pore array superhydrophobic laser-texturing surfaces

作者:Hong, XZ (Hong, Xiaozhe)[ 1 ] ; Hu, HX (Hu, Huixiang)[ 1 ] ; Gao, Y (Gao, Yan)[ 1,2 ]

 

JOURNAL OF APPLIED PHYSICS

 

: 129 : 21

文献号: 215302

 

DOI: 10.1063/5.0050644

 

出版年: JUN 7 2021

 

文献类型:Article

 

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摘要

Superhydrophobic surfaces fabricated by laser irradiation on various materials have been reported recently to show excellent wetting properties. However, there are only limited works regarding the theoretical analysis and prediction of the wetting properties of different surface structures, especially the widely used pore array laser-texturing surfaces, whose fabrication process is simple and time-saving. Here we propose a two-dimensional thermodynamic structure model based on the actual pore array laser-texturing surfaces, and four wetting states are defined in our model. By minimizing the Gibbs free energy, equilibrium contact angle and contact angle hysteresis representing wetting properties are calculated, and the effects of defined parameters (intrinsic contact angle theta(Y), pore space b, and pore depth H) on wetting properties are analyzed in detail to find out the critical transition conditions among different wetting states. Besides, actual pore array laser-texturing surfaces are fabricated for further validation, and the wetting properties in measurement are found to be in good agreement with those in prediction, indicating that our model is credible and can be used to guide the design of the pore array superhydrophobic laser-texturing surfaces.

 

关键词

KeyWords Plus:CONTACT-ANGLE HYSTERESIS; WETTABILITY TRANSITION; SOLID-SURFACES; FABRICATION; DESIGN

 

作者信息

通讯作者地址:

 

South China University of Technology South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Peoples R China.

South China University of Technology South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Peoples R China.

通讯作者地址: Gao, Y (通讯作者)

 

显示更多       South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Peoples R China.

通讯作者地址: Gao, Y (通讯作者)

显示更多       South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Peoples R China.

地址:

 

显示更多       [ 1 ] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Peoples R China

显示更多       [ 2 ] South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Peoples R China

电子邮件地址:meygao@scut.edu.cn

 

基金资助致谢

基金资助机构显示详情       授权号

National Natural Science Foundation of China (NSFC)

 

51871099

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出版商

AMER INST PHYSICS, 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA

 

期刊信息

Impact Factor (影响因子): Journal Citation Reports

类别 / 分类

研究方向:Physics

 

Web of Science 类别:Physics, Applied