Effects of the interaction between neighboring droplets on the stability of nanoscale liquid bridges
文献类型：期刊论文
| 作者 | Tong, Kai-wen; Guo, Jian-hua; Zhang, Wei; Li, Shi-chang; Huang, Kang; Chen, Shan-xiong; Yu, Fei; Dai, Zhang-jun |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2022-03-14 |
| 卷号 | 323 |
| 关键词 | Unsaturated system Liquid bridge Stability Coalescence Capillary force |
| ISSN号 | 0950-0618 |
| 英文摘要 | The mechanism of mechanical and hydraulic properties of unsaturated clays at the nanoscale hasn't been fully understood, especially for three-phase systems. Through molecular dynamics (MD) and a series of microscopic test methods, the stability of kaolinite-water-CO2 under D-h, S-r, M*, d(s)* and (I) over cap mu* was evaluated. The results of density field, adsorption, contact angle and capillary force of water and CO2 molecules indicated that D-h and M* controlled the coalescence and jumping of adjacent droplets, while the wettability of minerals depended on S-r and (I) over cap mu*. When the two droplets ranged from coalescence to separation, not only the contact angle enlarged, but the capillary force declined. Although the rise of (I) over cap mu* will enhance the wettability of kaolinite, it will cause the liquid bridge to break and be adsorbed on the surface of particle in the form of a liquid film if it's too high. In this case, contact angle of liquid bridges suddenly dropped to zero. The capillary force will also present a trend of first increasing and then decreasing. In the three-phase environment, the enlargement of S-r induced CO2 molecules to be adsorbed on the surface of solid and liquid phase due to hydrogen bonds, thereby reducing the wettability of minerals. Subsequently, capillary force became smaller. In addition, CO2 and H2O molecules at the interface were arranged in order, and the thickness of adsorption layer was from small to large: solid-gas, solid-liquid, gas-liquid. By fitting the critical conditions of liquid bridges in instability and fracture, it may be beneficial to explain macroscopic unsaturated theory and long-term experimental observations. |
| 学科主题 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000766194800002 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34923]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS; 2.Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS |
| 推荐引用方式 GB/T 7714 | Tong, Kai-wen,Guo, Jian-hua,Zhang, Wei,et al. Effects of the interaction between neighboring droplets on the stability of nanoscale liquid bridges[J]. CONSTRUCTION AND BUILDING MATERIALS,2022,323. |
| APA | Tong, Kai-wen.,Guo, Jian-hua.,Zhang, Wei.,Li, Shi-chang.,Huang, Kang.,...&Dai, Zhang-jun.(2022).Effects of the interaction between neighboring droplets on the stability of nanoscale liquid bridges.CONSTRUCTION AND BUILDING MATERIALS,323. |
| MLA | Tong, Kai-wen,et al."Effects of the interaction between neighboring droplets on the stability of nanoscale liquid bridges".CONSTRUCTION AND BUILDING MATERIALS 323(2022). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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