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
AN - SCOPUS:84964540353
VL - 351
SP - 897
EP - 903
JO - Applied Surface Science
JF - Applied Surface Science
SN - 0169-4332
ER -