期刊
MATERIALS RESEARCH EXPRESS
卷 6, 期 8, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/2053-1591/ab0cda
关键词
superhydrophobicity; mechanical stability; chemical resistance; boiling water repellent ability; high separation capability
资金
- National Natural Science Foundation of China [21878110, 21676102, 51476059]
- Key projects of Natural Science Foundation of Guangdong Province of China [2018B030311058]
Nowadays, inferior mechanical stability and poor resistance to chemical corrosion and hot water severely restricted the broad applications of superhydrophobic materials. In this work, a robust superhydrophobic mesh was prepared by using the cured thermoset phenolic resin (TPR) to anchor the hydrophobic SiO2 nanoparticles on stainless-steel mesh surface (SiO2@TPR-SSM). The obtained superhydrophobic SiO2@TPR-SSM exhibits excellent resistance to various mechanical, chemical and high temperature damages. Violent hand kneading or 70 cycles of abrasion by sandpaper could not make the superhydrophobicity of SiO2@TPR-SSM lose. And it would not cause effect on its wettability with immersion in various organic solvents, or strong acid and high-concentration salt solution for 192 h. Even in boiling water or in the environment of 0 degrees C to 240 degrees C, the SiO2@TPR-SSM still could retain its superhydrophobicity. Moreover, the obtained superhydrophobic SiO2@TPR-SSM shows high separation capability in separating various water/oil mixtures and the separation cycles are larger than 200. And it also demonstrates high separation capability for boiling strong acid, base and high-concentration salt water/oil mixtures, which makes the SiO2@TPR-SSM into a promising material in industrial separation practice under harsh conditions.
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