Bulk superhydrophobic materials: a facile and efficient approach to access superhydrophobicity by silane and urethane chemistries

Abstract

CaCO₃-based bulk superhydrophobic material is synthesised by sequential silane and urethane chemistry. The cross-linked material displays a static contact angle of ~155° and a water-roll-off angle of 5–8° throughout the thickness which is attributed to 3D- hydrogen bonding.