Journal
MATERIALS RESEARCH EXPRESS
Volume 8, Issue 6, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2053-1591/ac08cf
Keywords
superhydrophobic paper; pH-responsive; stability; transparency; oil-water separation
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This paper proposes a simple method for preparing high stability superhydrophobic paper with pH-induced wettability transition, which can achieve reversible regulation of superhydrophobic & lipophilic and super-oleophobic & hydrophilic properties under different pH conditions. The modified paper not only has strong stability and transparency, but also has important application value in the field of oil-water separation in industrial applications.
In this paper, a simple method for preparing high stability superhydrophobic paper with pH-induced wettability transition was proposed. Firstly, the pH-responsive monomer 2- (dimethylamino) ethyl methacrylate (DMAEMA), the silicon-containing crosslinking monomer 3-trimethoxysilyl propyl methacrylate (TSPM) and the fluorine-containing monomer hexafluorobutyl methacrylate (HFMA) were polymerized to prepare the pH-responsive polymer PHFMA-PTSPM-PDMAEMA. Afterwards, the amino-modified SiO2 was grafted onto the polymer to provide roughness and then coated on the paper to prepare the superhydrophobic paper with pH-responsive properties. Further research found that the modified paper prepared by this method not only has strong stability and transparency, but also can realize the reversible regulation of superhydrophobic & lipophilic and super-oleophobic & hydrophilic properties under different pH-induction, and it has important application value in the field of oil-water separation in industrial applications.
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