Evolution of capillary force of nano-scale liquid bridge between kaolinite particles considering stratification

doi:10.1016/j.mtcomm.2021.102675

	Evolution of capillary force of nano-scale liquid bridge between kaolinite particles considering stratification
	Tong, Kaiwen 1,2; Guo, Jianhua 1,2; Chen, Shanxiong 1; Yu, Fei 1; Dai, Zhangjun 1
刊名	MATERIALS TODAY COMMUNICATIONS
	2021-09-01
卷号	28 页码:13
关键词	Kaolinite Molecular dynamics Liquid bridge Capillary force Solid-liquid surface energy
DOI	10.1016/j.mtcomm.2021.102675
英文摘要	To deeply understand the mechanical behaviors and evolution of nano-scale liquid bridge, the influence of variables such as initial particle spacing, the distance between solid-liquid surface and temperature on three-dimensional kaolinite-water system were analyzed by a combination of experiment, molecular simulation and theoretical equation. Studies have shown that initial distance between solid-liquid surface was the most sensitive to the breakage of liquid bridges, and the critical range was 15-20 angstrom. Due to the obvious stratification of water molecules, the calculated results were larger by Young-Laplace equation. By using surface energy to avoid contact angle and surface tension that are poorly defined on the microscopic level, the revised theoretical results were confirmed to be in good agreement with simulated data. The capillary force of kaolinite particles was mainly attributed to the contribution of negative pore water pressure, and nano-size liquid bridge can be considered to still obey the Young-Laplace equation. This work is crucial for the subsequent research on the water-holding properties of unsaturated soils.
资助项目	National Natural Science Foundation of China[42077270] ; National Natural Science Foundation of China[41702337]
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000696674800001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/27921]
专题	中科院武汉岩土力学所
通讯作者	Dai, Zhangjun
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Tong, Kaiwen,Guo, Jianhua,Chen, Shanxiong,et al. Evolution of capillary force of nano-scale liquid bridge between kaolinite particles considering stratification[J]. MATERIALS TODAY COMMUNICATIONS,2021,28:13.
APA	Tong, Kaiwen,Guo, Jianhua,Chen, Shanxiong,Yu, Fei,&Dai, Zhangjun.(2021).Evolution of capillary force of nano-scale liquid bridge between kaolinite particles considering stratification.MATERIALS TODAY COMMUNICATIONS,28,13.
MLA	Tong, Kaiwen,et al."Evolution of capillary force of nano-scale liquid bridge between kaolinite particles considering stratification".MATERIALS TODAY COMMUNICATIONS 28(2021):13.