A polyethyleneimine-grafted graphene oxide hybrid nanomaterial: Synthesis and anti-corrosion applications
Creators
- 1. University of Chinese Academy of Sciences, Beijing 100049 (China)
- 2. Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201 (China)
- 3. State Grid Zhejiang Electric Power Corporation Ningbo Power Supply Company Co., Ltd, Ningbo 315201 (China)
Description
In this work, a polyethyleneimine-grafted graphene oxide (PEI-GO) hybrid material was prepared as an effective filler to improve the anticorrosion performance of waterborne epoxy coating. The successful covalent reaction between PEI and GO was confirmed by FTIR, Raman, XPS, XRD and TGA measurement. The epoxy coating filled with modified and unmodified graphene oxide was characterized by SEM and Raman spectroscopy. The results showed that PEI-GO was uniformly dispersed in the epoxy matrix. It was found that the PEI-GO hybrid materials displayed considerable superiorities in improving corrosion resistance of epoxy coating by EIS and SVET. Besides, the optimal content (0.25 wt%) of PEI-GO was obtained through experimental results. Moreover, the desirable anticorrosive property of PEI-GO/EP composite coating is proposed to be mainly attributed to the role of PEI, which fully stimulated the barrier properties of graphene oxide by improving its dispersion in the epoxy coating and also enhanced the crosslink density of epoxy resin by increasing the surface activity of the graphene oxide to the epoxy groups.
Additional details
Identifiers
- DOI
- 10.1016/j.apsusc.2019.02.193;
- PII
- S0169433219305446;
Publishing Information
- Journal Title
- Applied Surface Science
- Journal Volume
- 479
- Journal Page Range
- p. 963-973
- ISSN
- 0169-4332
- CODEN
- ASUSEE
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 55048640
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- COATINGS; CORROSION; CORROSION PROTECTION; CORROSION RESISTANCE; COVALENCE; EPOXIDES; FOURIER TRANSFORM SPECTROMETERS; GRAPHENE; INFRARED SPECTRA; MATRICES; NANOMATERIALS; OXIDES; PERFORMANCE; RAMAN SPECTROSCOPY; RESINS; SCANNING ELECTRON MICROSCOPY; SURFACES; THERMAL GRAVIMETRIC ANALYSIS; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY
- Descriptors DEC
- CARBON; CHALCOGENIDES; CHEMICAL ANALYSIS; CHEMICAL REACTIONS; COHERENT SCATTERING; DIFFRACTION; ELECTRON MICROSCOPY; ELECTRON SPECTROSCOPY; ELEMENTS; GRAVIMETRIC ANALYSIS; LASER SPECTROSCOPY; MATERIALS; MEASURING INSTRUMENTS; MICROSCOPY; NONMETALS; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; ORGANIC POLYMERS; OXYGEN COMPOUNDS; PETROCHEMICALS; PETROLEUM PRODUCTS; PHOTOELECTRON SPECTROSCOPY; POLYMERS; QUANTITATIVE CHEMICAL ANALYSIS; SCATTERING; SPECTRA; SPECTROMETERS; SPECTROSCOPY; THERMAL ANALYSIS
Optional Information
- Copyright
- Copyright (c) 2019 Elsevier B.V. All rights reserved.