| Model of Advancing and Receding Contact Angles on Rough Surfaces |
| Lei D; Li Y; Lin M(林缅) ; Wen MG
|
| 通讯作者 | Li, Yun(yunli@mail.xjtu.edu.cn)
; Lin, Mian(linmian@imech.ac.cn)
|
| 发表期刊 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 2019-08-01
|
| 卷号 | 123期号:30页码:18376-18386 |
| ISSN | 1932-7447
|
| 摘要 | Contact angle hysteresis is a basic phenomenon in many industrial applications, such as material surface engineering and enhanced oil recovery. The mechanism of continuous change of the contact angle during hysteresis is not well understood and described, and it is also important to predict advancing and receding angles by the Young contact angle and surface roughness. In this work, a contact angle hysteresis model is developed based on several metastable contact angle models. The fraction difference between gas and liquid prefilling the solid grooves is assumed to be variable, so is the fraction difference of gas and liquid displaced by the other phase. Besides these two newly introduced variables, the solid area fraction, the ratio of the real surface area to the projected surface area, and the Young, contact angle together influence the advancing and receding angles. Energy input or work is the external cause of hysteresis. The new variables are the intrinsic cause of hysteresis, enabling the continuous change of the contact angle and ensuring a minimal surface energy during hysteresis. The advancing and receding angles are explicitly expressed in a function of the factors mentioned above. The results from this model are in good coincidence with experiments from the literature. Through comparison, it is found that the model in this paper can be reduced as the Wenzel model, Cassie-Baxter model, etc., under special conditions. |
| DOI | 10.1021/acs.jpcc.9b03288
|
| 收录类别 | SCI
; EI
|
| 语种 | 英语
|
| WOS记录号 | WOS:000479326300028
|
| 关键词[WOS] | WETTING HYSTERESIS
|
| WOS研究方向 | Chemistry
; Science & Technology - Other Topics
; Materials Science
|
| WOS类目 | Chemistry, Physical
; Nanoscience & Nanotechnology
; Materials Science, Multidisciplinary
|
| 资助项目 | National Natural Science Foundation of China[41574129]
; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14010304]
; Major National Science and Technology Special Program of China[2017ZX05037-001]
|
| 项目资助者 | National Natural Science Foundation of China
; Strategic Priority Research Program of the Chinese Academy of Sciences
; Major National Science and Technology Special Program of China
|
| 论文分区 | 二类/Q1
|
| 力学所作者排名 | 1
|
| RpAuthor | Li, Yun
; Lin, Mian
|
| 引用统计 |
|
| 文献类型 | 期刊论文
|
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/79751
|
| 专题 | 流固耦合系统力学重点实验室
|
推荐引用方式
GB/T 7714 |
Lei D,Li Y,Lin M,et al. Model of Advancing and Receding Contact Angles on Rough Surfaces[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2019,123,30,:18376-18386.
|
| APA |
Lei D,Li Y,林缅,&Wen MG.(2019).Model of Advancing and Receding Contact Angles on Rough Surfaces.JOURNAL OF PHYSICAL CHEMISTRY C,123(30),18376-18386.
|
| MLA |
Lei D,et al."Model of Advancing and Receding Contact Angles on Rough Surfaces".JOURNAL OF PHYSICAL CHEMISTRY C 123.30(2019):18376-18386.
|
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