Studies on wetting phenomena on plant leaf surfaces. 3. A retention model for droplets on solid surfaces
1992
Watanabe, T. | Yamaguchi, I.
To investigate the factors governing retention of pesticidal spray solutions on plant surfaces, a new retention model for droplets on solid surfaces has been introduced as (...). The minimum sliding volumes (MiSV) of surfactant aqueous solutions (2 g litre-1; surface tensions; 28.5 - 72.5 mN m-1) on smooth surfaces of paraffin wax and polymer sheets were measured and the validity of the above retention equation was verified on combinations of these solutions and surfaces. A concept of the specific adhesional force (Fs) of a droplet was defined as (...) which was the maximum adhesional force on a unit length of the width of the contact circle of a droplet, and Fs values of the solutions on the surfaces were compared. The predominant factors for droplet retention are discussed on the basis of this model.
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