Premium
Superhydrophobic PVC/SiO 2 Coating for Self‐Cleaning Application
Author(s) -
Sutar Rajaram S.,
Kalel Prashant J.,
Latthe Sanjay S.,
Kumbhar Deepak A.,
Mahajan Smita S.,
Chikode Prashant P.,
Patil Swati S.,
Kadam Sunita S.,
Gaikwad V. H.,
Bhosale Appasaheb K.,
Sadasivuni Kishor Kumar,
Liu Shanhu,
Xing Ruimin
Publication year - 2020
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.202000034
Subject(s) - sandpaper , coating , materials science , contact angle , wetting , superhydrophobic coating , composite material , lotus effect , dip coating , abrasion (mechanical) , layer (electronics) , adhesive , substrate (aquarium) , chemical engineering , chemistry , raw material , oceanography , organic chemistry , engineering , geology
A lotus leaf like self‐cleaning superhydrophobic coating has high demand in industrial applications. Such coatings are prepared by alternative dip and spray deposition techniques. A layer of polyvinyl chloride is applied on glass substrate by dip coating and then spray coated a suspension of hydrophobic silica nanoparticles at substrate temperature of 50 °C. This coating procedure is repeated for three times to achieve rough surface morphology which exhibits a water contact angle of 169 ± 2° and sliding angle of 6°. The superhydrophobic state of the coating is still preserved when water volume of 1.2 L is used to impact the water drops on coating surface. The stability of the wetting state of the coating is analyzed against the water jet, adhesive tape and sandpaper abrasion tests. The prepared superhydrophobic coating strongly repelled the muddy water suggesting its importance in self‐cleaning applications.