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- Title
Preparation and corrosion resistance of modified g-C<sub>3</sub>N<sub>4</sub> doped polyurethane coating.
- Authors
AI Xinzhi; DONG Binghai; CHEN Zesheng; WU Congcong; ZHAO Li; WANG Eriing; WAN Li; LI Wenlu; WANG Shimin
- Abstract
The modified g-C3N4 and polyurethane through the modification of g-C3N4 by silane coupling agent (OTS). The effects of different mass rations of modified g-C3N4 on the corrosion resistance and other properties of modified g-C3N4/polyurethane com poste are studied. The structure and properties of g-C3N4 are characterized by FT-IR, XRD, XPS and particle size analysis. Meanwhile, the morphology and properties of g-C3N4 composite are characterized by contact angle analysis, scanning electron microscopy, transmission electron microscopy and electrochemistry. The results show that the dispersion of g-C3N4 is enhanced after modification, and the average particle size decreases from 682 nm to 118 nm. The modified g-C3N4 doping enhances the hydrophobidity of polyurethane and increases the contact angle by 25°. The corrosion resistance of the modified g-C3N4/polyurethane composite increases first and then decreases with the increase of the mass fraction of modified g-C3N4. When the mass fraction of modified g-C3N4 is 3%, the corrosion resistance of the composite increases by 58.74% and 46.34%, respectively.
- Publication
Journal of Functional Materials / Gongneng Cailiao, 2022, Vol 53, Issue 3, p03115
- ISSN
1001-9731
- Publication type
Article
- DOI
10.3969/j.issn.1001-9731.2022.03.015