Fig. 3: Characterization of material functional durability. | NPG Asia Materials

Fig. 3: Characterization of material functional durability.

From: Monolithic polymeric porous superhydrophobic material with pneumatic plastron stabilization for functionally durable drag reduction in blood-contacting biomedical applications

Fig. 3

a CA and RA measurements of the PTFE surface after incubation in solutions of varying pH. b (left) Schematic diagram of the setup for the water jetting test used for the functional durability and drag reduction tests. A stream of water is jetted onto the PTFE sample assembly with a backing gas supply. (right) Wettability characterization of the PTFE surface before and after jetting, comparing the effects of pressurized gas supply. c Abrasion resistance evaluation of the PTFE material after varying the number of abrasion cycles with #400 grit sandpaper.

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