Premium
Effect of Glycerol on the Properties of the Cross‐Linked Polyvinyl Alcohol Hydrogel Beads
Author(s) -
Zhu Xuejun,
Zhang Yi,
Deng Jun,
Luo Xujun
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201701975
Subject(s) - glycerol , polyvinyl alcohol , boric acid , swelling , absorption of water , vinyl alcohol , chemical engineering , polyvinyl chloride , self healing hydrogels , permeability (electromagnetism) , chemistry , alcohol , materials science , polymer chemistry , organic chemistry , composite material , polymer , membrane , biochemistry , engineering
Poly(vinyl alcohol) ( PVA )/glycerol hydrogel beads were created, using saturated boric acid and calcium chloride solution as the chemical crosslinking agents. The structure and properties of the PVA /glycerol hydrogel beads were studied. The results indicated that glycerol could improved the water absorption rate and the swelling rate at equilibrium. Also improved were the capillary water absorption capacity and the permeability of the PVA/glycerol hydrogel beads. The rheological tests showed that glycerol was able to improve the effective crosslinking density of the hydrogel beads. The amount of total water of the PVA /glycerol hydrogel beads slightly increased upon the addition of glycerol.