Simulation of the formation of a coffee ring structure during drying a droplet containing suspended particles

1Bulavin, LA, 2Khrapatiy, SV, 2Lebovka, NI, 2Vygornitskii, NV, 3Pyvovarova, NS
1Taras Shevchenko National University of Kyiv
2F.D. Ovcharenko Institute of Biocolloidal Chemistry of the NAS of Ukraine, Kyiv
3National University of Life and Environmental Sciences of Ukraine, Kyiv
Dopov. Nac. akad. nauk Ukr. 2014, 12:71-76
https://doi.org/10.15407/dopovidi2014.12.071
Section: Physics
Language: Ukrainian
Abstract: 

The Monte-Carlo method is applied to study the process of formation of a coffee ring structure during drying a droplet containing suspended particles. The calculations are performed for the two-dimensional model of droplet, by accounting for the radial flow of suspended particles directed toward the line of the three-phase contact. The dependencies of the coffee ring width on the initial concentration of particles and the coefficient of radial flow are investigated.

Keywords: coffee ring, drying a droplet, suspended particles
References: 

1. Sefiane K. Advances in Colloid and Interface Science, 2014, 206: 372. https://doi.org/10.1016/j.cis.2013.05.002
2. Routh A. F. Reports on Progress in Physics., 2013, 76, 046603. https://doi.org/10.1088/0034-4885/76/4/046603
3. Erbil H. Y. Advances in Colloid and Interface Science, 2012, 170: 67. https://doi.org/10.1016/j.cis.2011.12.006
4. Kim H.-S., Park S. S., Hagelberg F. J. of Nanoparticle Research, 2011, 13: 59. https://doi.org/10.1007/s11051-010-0062-8
5. Chen W., Koplik J., Kretzschmar I. Phys. Rev. E., 2013, 87: 52404. https://doi.org/10.1103/PhysRevE.87.052404
6. Crivoi A., Duan F. Phys. Chem. Chem. Phys., 2012, 14: 1449. https://doi.org/10.1039/C1CP22989C
7. Crivoi A., Duan F. Colloids and Surfaces A., 2013, 432: 119. https://doi.org/10.1016/j.colsurfa.2013.04.051
8. Lebovka N. I., Khrapatiy S. V., Melnyk R. M., Vygornitskii N. V. Phys. Review E., 2014, 89: 52307. https://doi.org/10.1103/PhysRevE.89.052307
9. Lebedev-Stepanov P., Vlasov K. Colloids and Surfaces A., 2013, 432: 132. https://doi.org/10.1016/j.colsurfa.2013.05.012
10. Lebovka N. I., Gigiberiya V. A., Lytvyn O. S. et al. Colloids and Surfaces A., 2014, 462: 52. https://doi.org/10.1016/j.colsurfa.2014.08.014
11. Kroger D. G., Branfield G. R. J. of the South African Inst., of Mech. Eng., 2007, 23: 5–11.