期刊
CHINESE PHYSICS B
卷 25, 期 7, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1674-1056/25/7/076801
关键词
soft matter solution; skin formation; Onsager principle; solute based Lagrangian scheme
资金
- Engineering and Physical Sciences Research Council [EP/J017639]
- Chinese Central Government under the One Thousand Talent Program
When a film of soft matter solutions is being dried, a skin layer often forms at its surface, which is a gel-like elastic phase made of concentrated soft matter solutions. We study the dynamics of this process by using the solute based Lagrangian scheme which was proposed by us recently. In this scheme, the process of the gelation (i.e., the change from sol to gel) can be naturally incorporated in the diffusion equation. Effects of the elasticity of the skin phase, the evaporation rate of the solvents, and the initial concentration of the solutions are discussed. Moreover, the condition for the skin formation is provided.
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