Evaporation of saline colloidal droplet and deposition pattern* | |
Sun HH(孙弘辉)1,3; Li WB(李伟斌)1,3; Ji WJ(纪文杰)1,2; Dai GL(戴国亮)1,3; Huan Y(郇勇)2,3; Wang YR(王育人)1,3; Lan D(蓝鼎)1,3 | |
发表期刊 | CHINESE PHYSICS B |
2020 | |
卷号 | 29期号:1页码:7 |
ISSN | 1674-1056 |
摘要 | The dynamic process of the evaporation and the desiccation of sessile saline colloidal droplets, and their final deposition are investigated. During the evaporation, the movement of the colloidal particles shows a strong dependence on the salt concentration and the droplet shape. The final deposition pattern indicates a weakened coffee-ring effect in this mixed droplet system. The microscopic observation reveals that as evaporation proceeds, the particle motion trail is affected by the salt concentration of the droplet boundary. The Marangoni flow, which is induced by surface tension gradient originating from the local evaporative peripheral salt enrichment, suppresses the compensation flow towards the contact line of the droplet. The inhomogeneous density and concentration field induced by evaporation or crystallization can be the major reason for various micro-flows. At last stage, the distribution and crystallization of NaCl are affected by the colloidal particles during the drying of the residual liquid film. |
关键词 | saline droplet evaporation deposition pattern disease diagnosis |
DOI | 10.1088/1674-1056/ab5782 |
收录类别 | SCI ; EI ; CSCD |
语种 | 英语 |
WOS记录号 | WOS:000508556100001 |
关键词[WOS] | SESSILE |
WOS研究方向 | Physics |
WOS类目 | Physics, Multidisciplinary |
资助项目 | National Natural Science Foundation of China[11472275] ; National Natural Science Foundation of China[U1738118] ; Chinese Academy of Sciences Key Technology Talent Program ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040301] |
项目资助者 | National Natural Science Foundation of China ; Chinese Academy of Sciences Key Technology Talent Program ; Strategic Priority Research Program of the Chinese Academy of Sciences |
论文分区 | Q3 |
力学所作者排名 | 1 |
RpAuthor | Lan, Ding |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/81333 |
专题 | 微重力重点实验室 非线性力学国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100190, Peoples R China; 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Sun HH,Li WB,Ji WJ,et al. Evaporation of saline colloidal droplet and deposition pattern*[J]. CHINESE PHYSICS B,2020,29,1,:7. |
APA | Sun HH.,Li WB.,Ji WJ.,Dai GL.,Huan Y.,...&Lan D.(2020).Evaporation of saline colloidal droplet and deposition pattern*.CHINESE PHYSICS B,29(1),7. |
MLA | Sun HH,et al."Evaporation of saline colloidal droplet and deposition pattern*".CHINESE PHYSICS B 29.1(2020):7. |
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