On the effect of chemical composition on the desorption of superabsorbent hydrogels in contact with a porous cementitious material

Khashayar Farzanian, Ali Ghahremaninezhad

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

The behavior of poly(sodium acrylate-co-acrylamide) copolymer hydrogels with varied chemical compositions in artificial pore solutions with three different pH values is examined. The absorption, chemical characteristics, mechanical stiffness, and desorption of the hydrogels in contact with a porous cementitious material were investigated. It was observed that the surface characteristics of the hydrogels play an important role in the desorption of hydrogels due to the capillary forces. It was shown that in the hydrogel systems studied here, the bonding between the hydrogels and the porous cementitious material is improved with an increase in the content of acrylamide in the hydrogels, and this results in an increased desorption rate of the hydrogels.

Original languageEnglish (US)
Article number70
JournalGels
Volume4
Issue number3
DOIs
StatePublished - Sep 2018

Keywords

  • Capillary forces
  • Cementitious materials
  • Desorption
  • Hydrogels

ASJC Scopus subject areas

  • Bioengineering
  • Biomaterials
  • Organic Chemistry
  • Polymers and Plastics

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