Wettability Effect of the Surface Morphologies of Musa acuminata Leaves
BIORESOURCES(2019)
Abstract
The biomimetic application was studied for banana leaves (Musa acuminata Colla), which have been commonly used as a traditional cleaning technique for ironing plates. In this study, banana leaf surfaces were subjected to horizontal sliding forces of 5 N, 10 N, 15 N, and 30 N, using a heated plate at 100 degrees C, 200 degrees C, 300 degrees C, and 500 degrees C. The self-cleaning behavior of the banana leaves was determined by measuring the adhesion force, roughness, and contact angle, which were subsequently correlated with the surface morphology. Based on the results of this study, the adhesion force decreased from 6.39 nN +/- 0.42 nN at 100 degrees C to 0.50 nN +/- 0.50 nN at 500 degrees C with a load of 30 N, whereas the roughness increased from 0.79 mu m +/- 0.21 mu m at 100 degrees C to 1.12 mu m +/- 0.30 mu m at 500 degrees C. Furthermore, the contact angle decreased from 124.8 degrees at 100 degrees C to 104.0 degrees at 500 degrees C with a load of 30 N. This study established that the morphology of the banana leaves was altered with the temperature during sliding, which correlated with the surface characteristics.
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Key words
Banana leaves,Sliding test,Self-cleaning,Adhesion force,Roughness,Wettability
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