Factors affecting the adhesion of ice to polymer substrates

Abstract

This article reviews the development of a laboratory test with a commercially available instrument for determining strength of ice adhesion. Using this method with standardized parameters, a number of factors affecting the adhesion of ice to a model elastomer, Sylgard 184, are evaluated. P s , the peak removal force, was dependent on the probe speed and distance of the probe from the surface. A probe speed of 0.05 mm/s and distance of 2 mm was chosen to interrogate other parameters. For Sylgard 184, coating thickness was also found to affect the ice adhesion strength. Peak removal force for ice was correlated with the work of adhesion for water w a , which is proportional to receding contact angle. Ice adhesion strength for Sylgard 184 was greatly reduced by a combination of oil infusion and microtexturing. These results provide a guide for the preparation of coatings from which ice can be removed easily.

Ice-Shedding Polymer Coatings with High Hardness but Low Ice Adhesion

“…A cuvette was then pushed with a force probe using the apparatus shown in Figure a, where the lowest temperature that could be achieved by the cooling stage is −11 °C. While the separation distance between the lowest part of the pushing head of the force probe and a coating was ∼1.0 mm, the advancing speed of the pushing head was 0.050 mm/s, as has been used by other researchers . A low advancing speed was reasonable because falling ice in nature always begins to move from an initial rest position.…”

“…First, it can be lubricated with a silicone oil (SO) or another lubricant to yield a trilayer coating, which consists of a surface SO layer, a SO-saturated intermediate PDMS layer, and a SO-swollen coating matrix. If the SO layer can support the ice, the τ values would be low due to the low shear modulus of the SO layer. − Second, a low τ value should be maintained even after the surface SO layer is depleted because the SO-swollen PDMS brush layer is also highly flexible (Scheme c). Third, if the SO (or lubricant in general) is lost from the brush layer, it can be replenished from the matrix due to a partition equilibrium of the lubricant between the brush layer and the matrix.…”

Adhesion of fluid infused silicone elastomer to glass

“…Silicone oil can be added to the network by immersing the elastomer in the oil after curing, 3,4 be added during curing, 5 or be present as unreacted oligomers. 6 Oil infused elastomers have found applications toward anti-icing, 5,[7][8][9][10][11][12][13] or antifouling. 4,[14][15][16] Moreover, the presence of fluid within elastomers has enabled their use as skin mimics [17][18][19][20][21][22] or light responsive materials.…”

Thermo-responsive Fluorinated Organogels Showing Anti-fouling and Long-Lasting/Repeatable Icephobic Properties

“…Ice adhesion strength was measured by a conventional method using a homemade apparatus which has been previously reported by several groups. ,,,, A texture analyzer (CT3-4500, AMETEK. Inc., USA.)…”