Spray-coated fluorine-free superhydrophobic coatings with easy repairability and applicability.

摘要: The present paper reports a very simple and low-cost fluorine-free superhydrophobic coating prepared by spray-coating metal alkylcarboxylates, for example, Cu[CH3(CH2)10COO]2, onto virtually any substrates. Superhydrophobicity with static water contact angle of about 160° sliding 5° was achieved from the proper precursor concentration. advantages approach include cheap raw materials, environmentally benign solvents, an industrial implementation method, easy repairability applicability so as to make great application potential in practice. hydrophobicity coatings adhesion were found be dependent on surface morphology that governed concentrations which prepared. wetting behavior droplets different sizes gentlly deposited studied more detail correlated theories, i.e., Wenzel’s Cassie’s models. results indicate...