Affiliation:
1. State Key Laboratory for Environment‐Friendly Energy Materials School of Materials and Chemistry Southwest University of Science and Technology Mianyang 621010 P. R. China
2. Engineering Research Center of Biomass Materials Ministry of Education Southwest University of Science and Technology Mianyang 621010 P. R. China
3. Center for Analysis Measurement and Computing Harbin Institute of Technology Harbin 150001 P. R. China
Abstract
AbstractSuperhydrophobic materials are attractive for industrial development but plagued by poor mechanical stability. Herein, a superdurable full‐life superhydrophobic composite block is designed and fabricated by embedding near‐zero contractive superhydrophobic silica aerogel into a rigid iron‐nickel foam structured similarly to a regular dodecahedron. The synergistic protection afforded by these materials ensures superrobust mechanical stability for the composite block, which features a high compressive strength of up to ≈7.4 MPa, and ultralow Taber abrasion of down to ≈0.567 mm after withstanding 50 000 cycles, and highly efficient water harvesting capability of up to ≈3114.3 mg min−1 cm−2 at a supercooling degree of 40 K. This robust material system provides a novel strategy to design superhydrophobic materials capable of withstanding extreme conditions, including high temperature, humidity, pressure, and abrasion.
Funder
National Natural Science Foundation of China