Petroleum Science >2021,??lssue 3:??- DOI: https://doi.org/10.1007/s12182-021-00558-x
EDTA interfacial chelation Ca2+ incorporates superhydrophobic coating for scaling inhibition of CaCO3 in petroleum industry Open?Access
文章信息
作者：Ming-Liang Zhu, Hui-Juan Qian, Rui-Xia Yuan, Dong-Yan Zhao, Hai-Chao Huang & Huai-Yuan Wang
作者單位：
Corresponding author
投稿時間：2021-2-18
引用方式：Zhu, ML., Qian, HJ., Yuan, RX. et al. EDTA interfacial chelation Ca2+ incorporates superhydrophobic coating for scaling inhibition of CaCO3 in petroleum industry. Pet. Sci. (2021). https://doi.org/10.1007/s12182-021-00558-x
文章摘要
In this paper, the superhydrophobic poly(vinylidene fluoride)/fluorinated ethylene propylene/SiO2/CNTs-EDTA (PFSC-EDTA) composite coating was successfully fabricated and applied for anti-scaling performance. The deposition of CaCO3 on the surface of the superhydrophobic PFSC-EDTA composite coating reached 0.0444 mg/cm2 for 192-h immersion into the supersaturated CaCO3 solution, which was only 11.4% that of the superhydrophobic PFSC composite coating. At the interface between the CaCO3 solution and the PFSC-EDTA coating, the Ca2+ could be firstly chelated by EDTA that was benefit for improving the anti-scaling performance of the superhydrophobic PFSC-EDTA composite coating. In another hand, the addition of EDTA to the CNTs played an important role in fabricating the SiO2-centric and CNTs-EDTA-surrounded multilevel micro–nanostructure in the superhydrophobic PFSC-EDTA composite coating, in favor of maintaining the air film under the water and the stability of the superhydrophobic surface. The research supplies a new way of improving anti-scaling performance of superhydrophobic coating by incorporating the organic chelating agent at the interface and changing the traditional way of scale prevention.
關(guān)鍵詞
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Anti-scaling ;Superhydrophobic coating ;EDTA; Poly(vinylidene fluoride) ;Carbon nanotubes