Effects of droplet size and solute concentration on drying process of polymer solution droplets deposited on homogeneous surfaces

Jun Fukai; Hirotaka Ishizuka; Yosuke Sakai; Masayuki Kaneda; Masamichi Morita; Atsushi Takahara

doi:10.1016/j.ijheatmasstransfer.2006.02.049

Effects of droplet size and solute concentration on drying process of polymer solution droplets deposited on homogeneous surfaces

Jun Fukai, Hirotaka Ishizuka, Yosuke Sakai, Masayuki Kaneda, Masamichi Morita, Atsushi Takahara

Research output: Contribution to journal › Article › peer-review

77 Citations (Scopus)

Abstract

An experimental setup is constructed to investigate the drying process of a micro-scale polymer solution droplet deposited on homogeneous surfaces. The contact angle during evaporation does not agree with the contact angle hysteresis measured using an inclined plate method due to the size effect. The average polymer concentration at which the contact line is pinned is independent of the initial solution concentration. This fact reveals that the free convection plays an impotent role before pinning. The pinning time, or the receding distance, is moreover found to be a key factor that dominates the shape and dimensions of the polymer films.

Original language	English
Pages (from-to)	3561-3567
Number of pages	7
Journal	International Journal of Heat and Mass Transfer
Volume	49
Issue number	19-20
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2006.02.049
Publication status	Published - Sept 2006

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

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10.1016/j.ijheatmasstransfer.2006.02.049

Cite this

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title = "Effects of droplet size and solute concentration on drying process of polymer solution droplets deposited on homogeneous surfaces",

abstract = "An experimental setup is constructed to investigate the drying process of a micro-scale polymer solution droplet deposited on homogeneous surfaces. The contact angle during evaporation does not agree with the contact angle hysteresis measured using an inclined plate method due to the size effect. The average polymer concentration at which the contact line is pinned is independent of the initial solution concentration. This fact reveals that the free convection plays an impotent role before pinning. The pinning time, or the receding distance, is moreover found to be a key factor that dominates the shape and dimensions of the polymer films.",

author = "Jun Fukai and Hirotaka Ishizuka and Yosuke Sakai and Masayuki Kaneda and Masamichi Morita and Atsushi Takahara",

note = "Funding Information: This research was partially supported by the Japan Society for the Promotion of Science (JSPS), Grant-in-Aid for Science Research (B), no. 16360387. ",

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T1 - Effects of droplet size and solute concentration on drying process of polymer solution droplets deposited on homogeneous surfaces

AU - Fukai, Jun

AU - Ishizuka, Hirotaka

AU - Sakai, Yosuke

AU - Kaneda, Masayuki

AU - Morita, Masamichi

AU - Takahara, Atsushi

N1 - Funding Information: This research was partially supported by the Japan Society for the Promotion of Science (JSPS), Grant-in-Aid for Science Research (B), no. 16360387.

PY - 2006/9

Y1 - 2006/9

N2 - An experimental setup is constructed to investigate the drying process of a micro-scale polymer solution droplet deposited on homogeneous surfaces. The contact angle during evaporation does not agree with the contact angle hysteresis measured using an inclined plate method due to the size effect. The average polymer concentration at which the contact line is pinned is independent of the initial solution concentration. This fact reveals that the free convection plays an impotent role before pinning. The pinning time, or the receding distance, is moreover found to be a key factor that dominates the shape and dimensions of the polymer films.

AB - An experimental setup is constructed to investigate the drying process of a micro-scale polymer solution droplet deposited on homogeneous surfaces. The contact angle during evaporation does not agree with the contact angle hysteresis measured using an inclined plate method due to the size effect. The average polymer concentration at which the contact line is pinned is independent of the initial solution concentration. This fact reveals that the free convection plays an impotent role before pinning. The pinning time, or the receding distance, is moreover found to be a key factor that dominates the shape and dimensions of the polymer films.

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JF - International Journal of Heat and Mass Transfer

IS - 19-20

ER -

Effects of droplet size and solute concentration on drying process of polymer solution droplets deposited on homogeneous surfaces

Abstract

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