Synthesis and swelling behavior of a fully degradable physical cross-linked high strength hydrogel

Polymer Testing

Jixiang Guo¹  Ruiying Xiong²  Liang Li² 

[1] Sinopec Northwest Oil Field Branch, Sinopec Group, Xinjian Wulumuqi, 830011, China;China University of Petroleum Beijing, Changping, Fuxue Road 18, China;

关键词: Swelling behavior;    Physically cross-linked hydrogel;    Acrylic acid;    Octadecyl acrylate;    Hydrophobic association;   

DOI  :  

来源: DOAJ

【 摘 要 】

Physically cross-linked high strength hydrogel which can be completely degradable was prepared by the micellar copolymerization using acrylic acid (AA) and octadecyl acrylate as the hydrophobic monomer. The hydrogel was characterized by the infrared absorption spectrum. The tensile strengths of hydrogels were tested in various raw materials, surfactant and initiator ratios. The degradation performances were investigated in different pH values. As a potential temporary plugging material in oilfield, the effect of temperature and salinity on swelling behavior of the hydrogel was also studied in this paper. As expected, this kind of hydrogel can be completely degraded under alkaline conditions. The higher the temperature, the shorter the time needed to reach complete degradation. High salinity was unfavorable to degradation of hydrogel.

【 授权许可】

Unknown