Paradoxical coffee-stain effect driven by the Marangoni flow observed on oil-infused surfaces

Gilad Chaniel; Mark Frenkel; Victor Multanen; Edward Bormashenko

doi:10.1016/j.colsurfa.2017.03.009

Paradoxical coffee-stain effect driven by the Marangoni flow observed on oil-infused surfaces

Gilad Chaniel
, Mark Frenkel
, Victor Multanen
, Edward Bormashenko

הנדסה כימית

פרסום מחקרי: פרסום בכתב עת › מאמר › ביקורת עמיתים

14 ציטוטים ‏(Scopus)

תקציר

Formation of coffee stain deposits under evaporation of droplets containing aqueous solution of salts placed on silicone-oil impregnated porous substrates was observed. The formation of ring-like deposits was registered for various molar concentrations of salts for the droplets of 5–300 μl in volume. The effect occurred when the contact line was de-pinned, and the evaporation from the edge of a droplet was stopped by the silicone oil. The formation of the coffee stain deposit is related to the soluto-capillary Marangoni flow; the influence of the thermo-capillary flow taking place in parallel is negligible.

שפה מקורית	אנגלית
עמודים (מ-עד)	355-360
מספר עמודים	6
כתב עת	Colloids and Surfaces A: Physicochemical and Engineering Aspects
כרך	522
מזהי עצם דיגיטלי (DOIs)	https://doi.org/10.1016/j.colsurfa.2017.03.009
סטטוס פרסום	פורסם - 5 יוני 2017

גישה למסמך

10.1016/j.colsurfa.2017.03.009

קבצים וקישורים אחרים

Link to publication in Scopus

פורמט ציטוט ביבליוגרפי

@article{f49b5a58e4ee42a085d9373d1a8b887d,

title = "Paradoxical coffee-stain effect driven by the Marangoni flow observed on oil-infused surfaces",

abstract = "Formation of coffee stain deposits under evaporation of droplets containing aqueous solution of salts placed on silicone-oil impregnated porous substrates was observed. The formation of ring-like deposits was registered for various molar concentrations of salts for the droplets of 5–300 μl in volume. The effect occurred when the contact line was de-pinned, and the evaporation from the edge of a droplet was stopped by the silicone oil. The formation of the coffee stain deposit is related to the soluto-capillary Marangoni flow; the influence of the thermo-capillary flow taking place in parallel is negligible.",

keywords = "Coffee-stain deposit, Contact line, Evaporation, Marangoni flow, Oil-impregnated substrate",

author = "Gilad Chaniel and Mark Frenkel and Victor Multanen and Edward Bormashenko",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

month = jun,

day = "5",

doi = "10.1016/j.colsurfa.2017.03.009",

language = "אנגלית",

volume = "522",

pages = "355--360",

journal = "Colloids and Surfaces A: Physicochemical and Engineering Aspects",

issn = "0927-7757",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Paradoxical coffee-stain effect driven by the Marangoni flow observed on oil-infused surfaces

AU - Chaniel, Gilad

AU - Frenkel, Mark

AU - Multanen, Victor

AU - Bormashenko, Edward

PY - 2017/6/5

Y1 - 2017/6/5

N2 - Formation of coffee stain deposits under evaporation of droplets containing aqueous solution of salts placed on silicone-oil impregnated porous substrates was observed. The formation of ring-like deposits was registered for various molar concentrations of salts for the droplets of 5–300 μl in volume. The effect occurred when the contact line was de-pinned, and the evaporation from the edge of a droplet was stopped by the silicone oil. The formation of the coffee stain deposit is related to the soluto-capillary Marangoni flow; the influence of the thermo-capillary flow taking place in parallel is negligible.

AB - Formation of coffee stain deposits under evaporation of droplets containing aqueous solution of salts placed on silicone-oil impregnated porous substrates was observed. The formation of ring-like deposits was registered for various molar concentrations of salts for the droplets of 5–300 μl in volume. The effect occurred when the contact line was de-pinned, and the evaporation from the edge of a droplet was stopped by the silicone oil. The formation of the coffee stain deposit is related to the soluto-capillary Marangoni flow; the influence of the thermo-capillary flow taking place in parallel is negligible.

KW - Coffee-stain deposit

KW - Contact line

KW - Evaporation

KW - Marangoni flow

KW - Oil-impregnated substrate

UR - https://www.scopus.com/pages/publications/85015800303

U2 - 10.1016/j.colsurfa.2017.03.009

DO - 10.1016/j.colsurfa.2017.03.009

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AN - SCOPUS:85015800303

SN - 0927-7757

VL - 522

SP - 355

EP - 360

JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects

JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects

ER -

Paradoxical coffee-stain effect driven by the Marangoni flow observed on oil-infused surfaces

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