A strategy for preparing controllable, superhydrophobic, strongly sticky surfaces using SiO₂@PVDF raspberry core-shell particles.

ABSTRACT: In nature, wetting by water droplets on superhydrophobic materials is governed by the Cassie-Baxter or Wenzel models. Moreover, sticky properties, derived from these types of wettings, are required for a wide range of applications involving superhydrophobic materials. As a facile new strategy, a method employing a gaseous fluorine precursor to fabricate core-shell particles, comprising perfectly shaped fluorine shells with adjustable adhesive strength, is described in this paper. Silica was used as the hydrophilic core, while polyvinylidene fluoride (PVDF) was used for the hydrophobic shell coating, forming a raspberry-like shape. In addition, controlling the amount of PVDF coated on the silica surface enabled the water droplets to come into contact with both the PVDF of the shell and the

SUBMITTER: Kim SH 

PROVIDER: S-EPMC9036573 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature