Reinforcement of Nanocomposite Hydrogel with Dialdehyde Cellulose Nanofibrils via Physical and Double Network Crosslinking Synergies

Preparation of tough and high-strength hydrogels for water plugging in oil fields with an easy-scalable method is still considered to be a challenge. In this study, dialdehyde cellulose nanofibril (DA-CNF) prepared by sodium periodate oxidation, polyamine, 2-acrylamido-2-methylpropane sulfonic acid...

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Bibliographic Details
Published in:Polymers 2023-04, Vol.15 (7), p.1765
Main Authors: Li, Liang, Guo, Jixiang, Kang, Chuanhong, Song, Hanxuan
Format: Article
Language:English
Subjects:
Acids
Acrylamide
Biocompatibility
Cellulose
Crosslinked polymers
Crosslinking
Fourier transforms
Hydrogels
Mechanical properties
Nanocomposites
Nanocrystals
Oil fields
Oil recovery
Oxidation
Polyamines
Polymerization
Polymers
Raw materials
Salinity
Spectrum analysis
Stability
Sulfonic acid
Tensile strength
Texture
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Summary:Preparation of tough and high-strength hydrogels for water plugging in oil fields with an easy-scalable method is still considered to be a challenge. In this study, dialdehyde cellulose nanofibril (DA-CNF) prepared by sodium periodate oxidation, polyamine, 2-acrylamido-2-methylpropane sulfonic acid (AMPS) with sulfonate groups and Acrylamide (AM) as raw materials, CNF reinforced nanocomposite hydrogels were prepared in one step by in-situ polymerization. The tensile strength, and texture stability of the obtained nanocomposite hydrogel were determined. The results showed that the tensile strength and toughness of the obtained nanocomposite hydrogel increased four times compared with control sample due to physical and chemical double crosslinking synergies. Moreover, the texture intensity of DA-CNFs reinforced hydrogel still maintains high stability and strength performance under high salinity conditions. Therefore, DA-CNF reinforced hydrogel has potential application value in both normal and high-salinity environments in oil recovery.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym15071765