2 research outputs found
Development of Sol–Gel Icephobic Coatings: Effect of Surface Roughness and Surface Energy
Sol–gel coatings with different
roughness and surface energy
were prepared on glass substrates. Methyl triethoxysilane (MTEOS),
3-Glycidyloxypropyl trimethoxysilane (GLYMO) and fluoroalkylsilane
(FAS) were used to obtain a mechanically robust icephobic coating.
Different amount of hydrophobic silica nano particles was added as
fillers to introduce different roughness and surface energy to the
coatings. The microstructure, roughness, and surface energy, together
with elemental information and surface chemical state, were investigated
at room temperature. The contact angle and sliding angle were measured
at different temperatures to correlate the wetting behavior at low
temperature with the anti-icing performance. The ice adhesion shear
strength was measured inside an ice chamber using a self-designed
tester. The factors influencing the ice adhesion were discussed, and
the optimum anti-icing performance found in the series of coatings.
It was found that lower surface energy leads to lower ice adhesion
regardless of the roughness, while the roughness plays a more complicated
role. The wetting behavior of the droplet on surface changes as temperature
decreases. The anti-icing performance is closely related to the antiwetting
property of the surfaces at subzero temperatures
Additional file 1 of Development of a cost of illness inventory questionnaire for children with autism spectrum disorder in South Asia
Additional file 1: Supplementary material