Synthesis and Mechanical Properties of Polyacrylamide Gel Doped with Graphene Oxide

Polyacrylamide (PAM)/polyethyleneimine (PEI) gels doped with graphene oxide (GO) were prepared. Their structure and properties were systematically studied by X-ray diffraction (XRD), Fourier transition infrared spectrum (FT-IR), Raman spectroscopy, scanning electron microscopy (SEM), differential sc...

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Bibliographic Details
Published in:Energies (Basel) 2022-08, Vol.15 (15), p.5714
Main Authors: Zhang, Hai-Peng, Cao, Jing-Jing, Jiang, Wen-Bing, Yang, Yu-Qi, Zhu, Bo-Yuan, Liu, Xiao-Yu, Wu, Yang, Sun, Xin, Essouma, Ariane Felicite Bibiche Essouma, Liu, Jian, Xing, Ting-Yan
Format: Article
Language:English
Subjects:
Adsorption
Calorimetry
Crosslinking
Dehydration
Differential scanning calorimetry
Fourier transforms
Gels
Graphene
graphene oxide
High temperature
Hydrogels
Infrared spectroscopy
mechanical behavior
Mechanical properties
microstructure
Molecular weight
nanocomposite hydrogel
Nanoparticles
Oil recovery
Optimization
Physical properties
Polyacrylamide
Polyethylene
Polyethyleneimine
Polymers
Pore size
Raman spectroscopy
Rheological properties
Rheology
Scanning electron microscopy
Spectrum analysis
Thermal stability
Viscoelasticity
Water control
X-ray diffraction
Yield stress
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Summary:Polyacrylamide (PAM)/polyethyleneimine (PEI) gels doped with graphene oxide (GO) were prepared. Their structure and properties were systematically studied by X-ray diffraction (XRD), Fourier transition infrared spectrum (FT-IR), Raman spectroscopy, scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and rheological experiments. The results showed that the graphene oxide (GO) nanosheets were significantly involved in the cross-linking reaction between the main agent (PAM) and the cross-linker (PEI), serving as multi-functional cross-linker and effective reinforcing nanofillers. Increasing the main agent and cross-linker content, the strength of gels was enhanced effectively. The GO could effectively adjust the strength and the gelation time to exhibit characteristics of weak gel, thanks to the improved three-dimensional honeycombed structure with controllable pore size. The DSC confirmed that the PAM/PEI/GO gel exhibited excellent thermal stability and did not dehydrate above 170 °C. This work provides theoretical support for further optimization of polyacrylamide gel used in ultra-deep and high-temperature reservoirs for water control.
ISSN:1996-1073
1996-1073
DOI:10.3390/en15155714