TY - JOUR
T1 - Honeycomb structures obtained with breath figures self-assembly allow water/oil separation
AU - Bormashenko, Edward
AU - Balter, Sagi
AU - Bormashenko, Yelena
AU - Aurbach, Doron
PY - 2012
Y1 - 2012
N2 - We report the development of a method of the breath figures self-assembly, allowing manufacturing of micro-scaled porous hydrophobic/oleophilic polymer surfaces. The stainless steel gauzes were used as carrying frameworks for polymer honeycomb reliefs resulting from the breath figures self-assembly. Two very different kinds of polymer reliefs arose from non-woven large aperture and micro-scaled woven gauzes. Both of them are hydrophobic and oleophilic, permeable for oils and impermeable for water. The micro-scaled woven gauzes promoted formation of reliefs manifesting the "rose petal effect", i.e. high apparent contact angles accompanied with the high contact angle hysteresis. This kind of reliefs turned out to be extremely efficient for water/oil separation.
AB - We report the development of a method of the breath figures self-assembly, allowing manufacturing of micro-scaled porous hydrophobic/oleophilic polymer surfaces. The stainless steel gauzes were used as carrying frameworks for polymer honeycomb reliefs resulting from the breath figures self-assembly. Two very different kinds of polymer reliefs arose from non-woven large aperture and micro-scaled woven gauzes. Both of them are hydrophobic and oleophilic, permeable for oils and impermeable for water. The micro-scaled woven gauzes promoted formation of reliefs manifesting the "rose petal effect", i.e. high apparent contact angles accompanied with the high contact angle hysteresis. This kind of reliefs turned out to be extremely efficient for water/oil separation.
KW - Breath-figures self-assembly
KW - Cassie wetting
KW - Hydrophobic surfaces
KW - Oleophilic surfaces
KW - Rose petal effect
KW - Water/oil separation
KW - Wenzel wetting
UR - http://www.scopus.com/inward/record.url?scp=84870279433&partnerID=8YFLogxK
U2 - 10.1016/j.colsurfa.2012.09.022
DO - 10.1016/j.colsurfa.2012.09.022
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AN - SCOPUS:84870279433
SN - 0927-7757
VL - 415
SP - 394
EP - 398
JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects
JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects
ER -