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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Published inPolymers Vol. 15; no. 7; p. 1765
Main Authors Li, Liang, Guo, Jixiang, Kang, Chuanhong, Song, Hanxuan
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 01.04.2023
MDPI
Subjects
Acids
Acrylamide
Biocompatibility
Cellulose
cellulose nanofibril
Crosslinked polymers
Crosslinking
double network crosslinking
Fourier transforms
high-strength
Hydrogels
Mechanical properties
nanocomposite hydrogel
Nanocomposites
Nanocrystals
Oil fields
Oil recovery
Oxidation
Polyamines
Polymerization
Polymers
Raw materials
reinforcement
Salinity
Spectrum analysis
Stability
Sulfonic acid
Tensile strength
Texture
China
United States > US
double network crosslinking
high-strength
nanocomposite hydrogel
polymers
reinforcement
cellulose nanofibril
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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.
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ISSN:2073-4360
2073-4360
DOI:10.3390/polym15071765