Fabrication of multifunctional wax infused porous PVDF film with switchable temperature response surface and anti corrosion property

The discovery of the lubricant infused surface (LIS) embarked a promising approach on the active surface applications. Demonstrated here is an intricately designed multifunctional film influenced by bottom-up approach, utilizing the underlying features of the compounding materials to provide greater functionalities and opportunities for various applications. Through facile fabrication method, a porous film was generated by incorporating ZnO nanoparticle as a porogen onto PDVF polymer prior casting followed by simple acid washing for the removal of ZnO. Wax was used to lubricate the porous thin film; the design was inspired by the advantageous property of the wax that will enhance surface wetting properties, exhibiting the surface with thermal responsiveness, anticorrosion protection and robust structure. By taking advantage onto the lubricant's rheological property, droplet motion control in response with the temperature variation was explored. Surface responses on different kinds of liquids were also studied. The multifunctional film manifested anticorrosion protection, which is supported by electrochemical measurement technique. The film's stability was explored through exposure on harsh condition that successfully preserve its robust architecture. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.