Blackberry morphology inspired superhydrophobic poplar scrimber with superstrong UV-resistant, self-healing and reversible properties

Abstract

Blackberry inspired superhydrophobic poplar scrimber with superstrong ultra-violet (UV) resistance, self-healing and reversible functional superhydrophobicity was fabricated via in-situ growth of Cu7Cl4(OH)10·H2O nano particles in the absence of low surface-free energy materials. Superhydrophobic poplar scrimber exhibited the best ultraviolet resistance over 1920 h of UV-irradiation at 340 nm, which could be the protection ascribed to UV light absorption by the hierarchical structure of Cu7Cl4(OH)10·H2O. More importantly, superhydrophobicity was reversed by a simply drying process under humid conditions. The results provider a novel strategy for preparing a simple, multifunctional, and reversibly superhydrophobic wood-based engineering material.