Abstract
Upon contact with a dusty superhydrophobic surface, moving spherical water drops collect the dust particles and eventually flow off the surface. Herein, we report a very simple one-step approach to fabricate transparent and self-cleaning superhydrophobic coatings via the sol-gel processing of long-chain fluoroalkylsilane. The coating surface exhibited a rough, wrinkled, hill-like morphology similar to the microstructure of the lotus leaf (rough micro-scale papillae), which is promising for superhydrophobicity. The air bags trapped in the rough, hill-like structure allow the water drops to take a round shape with a contact angle of 169°. These round water drops abruptly roll off the coating surface at less than 5°of tilting. No major or minor water-drop pinning was observed during the roll off. The dust-repellent (self-cleaning) property, plastron stability, and durability against water-jet impact were examined on the superhydrophobic coatings.
| Original language | English |
|---|---|
| Pages (from-to) | 897-903 |
| Number of pages | 7 |
| Journal | Applied Surface Science |
| Volume | 351 |
| DOIs | |
| Publication status | Published - 2015 Oct 1 |
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Keywords
- Dip coating
- Lotus leaf
- Plastron layer
- Self-cleaning
- Sol-gel process
- Superhydrophobic
ASJC Scopus subject areas
- Surfaces, Coatings and Films
Cite this
Self-cleaning transparent superhydrophobic coatings through simple sol-gel processing of fluoroalkylsilane. / Liu, Shanhu; Liu, Xiaojing; Latthe, Sanjay S.; Gao, Li; An, Seongpil; Yoon, Suk Goo; Liu, Baoshun; Xing, Ruimin.
In: Applied Surface Science, Vol. 351, 01.10.2015, p. 897-903.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Self-cleaning transparent superhydrophobic coatings through simple sol-gel processing of fluoroalkylsilane
AU - Liu, Shanhu
AU - Liu, Xiaojing
AU - Latthe, Sanjay S.
AU - Gao, Li
AU - An, Seongpil
AU - Yoon, Suk Goo
AU - Liu, Baoshun
AU - Xing, Ruimin
PY - 2015/10/1
Y1 - 2015/10/1
N2 - Upon contact with a dusty superhydrophobic surface, moving spherical water drops collect the dust particles and eventually flow off the surface. Herein, we report a very simple one-step approach to fabricate transparent and self-cleaning superhydrophobic coatings via the sol-gel processing of long-chain fluoroalkylsilane. The coating surface exhibited a rough, wrinkled, hill-like morphology similar to the microstructure of the lotus leaf (rough micro-scale papillae), which is promising for superhydrophobicity. The air bags trapped in the rough, hill-like structure allow the water drops to take a round shape with a contact angle of 169°. These round water drops abruptly roll off the coating surface at less than 5°of tilting. No major or minor water-drop pinning was observed during the roll off. The dust-repellent (self-cleaning) property, plastron stability, and durability against water-jet impact were examined on the superhydrophobic coatings.
AB - Upon contact with a dusty superhydrophobic surface, moving spherical water drops collect the dust particles and eventually flow off the surface. Herein, we report a very simple one-step approach to fabricate transparent and self-cleaning superhydrophobic coatings via the sol-gel processing of long-chain fluoroalkylsilane. The coating surface exhibited a rough, wrinkled, hill-like morphology similar to the microstructure of the lotus leaf (rough micro-scale papillae), which is promising for superhydrophobicity. The air bags trapped in the rough, hill-like structure allow the water drops to take a round shape with a contact angle of 169°. These round water drops abruptly roll off the coating surface at less than 5°of tilting. No major or minor water-drop pinning was observed during the roll off. The dust-repellent (self-cleaning) property, plastron stability, and durability against water-jet impact were examined on the superhydrophobic coatings.
KW - Dip coating
KW - Lotus leaf
KW - Plastron layer
KW - Self-cleaning
KW - Sol-gel process
KW - Superhydrophobic
UR - http://www.scopus.com/inward/record.url?scp=84964540353&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84964540353&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2015.06.016
DO - 10.1016/j.apsusc.2015.06.016
M3 - Article
VL - 351
SP - 897
EP - 903
JO - Applied Surface Science
JF - Applied Surface Science
SN - 0169-4332
ER -