Effects of some spreader and adhesives on some spraying parameters and retention rate for various target surfaces

Although there are the spreader-adhesives the hundreds of different companents in additive market, there is no information about their capacity of reaching their goal. In this study, the ten spreader-adhesives with (having) different companent (A, B, C, D, E, F, G, H, İ, J) were sprayed on the surface of leaf of seven plant belonging to different species (Habiscus esculentus, Citrus sinensis, Citrus limon, Lycoperslcon esculenlum, Solanum melongena L, Capsicum annum, Vitis vinifera) at recommended concentrations. İt was determined the each sprayed spreader-adhesives to constitute contact angles, contact heights and characteristic diameter of contact, nozzle spray angle, the effects of the spray pattern for the different leaf surfaces and due to the mixing potential foaming rates. The results obtained were compared with those of pure water. According to the contact angles which the surface tension of the mixture spreader-adhesives form by the leaf surface, leaf surface energies were found. In this study, the lowest surface tension 20.21 mN/m was determined as the G mixture with organosilicon composition. It was found that lemon leaves is hydrophilic, then grape leaf have the hydrophobic character. When the highest surface energy 22.06 mN/m formed on the surface of lemon leaves, the lowest surface energy 10.04 mN/m was observed on the surface of grape leaf. It was found that the droplet sizes of the mixtures at constant pressure (3 bar) are significant influence on the spray angle and the spray pattern. However, it was seen that the additives A, D and F generate the maximum amount of foam, considering the foaming ratio of the mixtures.