材料科学
极限抗拉强度
纳米复合材料
自愈水凝胶
纤维素
高碘酸钠
原位聚合
复合材料
磺酸
韧性
聚合
化学工程
磺酸盐
聚合物
高分子化学
钠
有机化学
化学
工程类
冶金
作者
Liang Li,Jixiang Guo,Chuanhong Kang,Haiqing Song
出处
期刊:Polymers
[MDPI AG]
日期:2023-04-01
卷期号:15 (7): 1765-1765
被引量:4
标识
DOI:10.3390/polym15071765
摘要
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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