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The preparation and characterization of fiber reinforced alginate hydrogel
Author(s) -
Qin Yimin
Publication year - 2008
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.27196
Subject(s) - self healing hydrogels , sodium alginate , calcium alginate , fiber , alginic acid , aqueous solution , materials science , chemical engineering , absorption of water , swelling , polyelectrolyte , polymer , calcium , composite material , chemistry , nuclear chemistry , sodium , polymer chemistry , organic chemistry , biochemistry , engineering , metallurgy
To prepare fiber reinforced alginate hydrogels, calcium alginate fibers were mixed with aqueous sodium alginate solutions. Tests were carried out to assess the amount of calcium ions released from two types of alginate fibers, i.e., those made from alginate rich in guluronic acid (high G) and in mannuronic acid (high M), respectively. Experimental results showed that more calcium ions were released from the high M fibers and the hydrogel made from the high M fibers had a higher viscosity than that made from high G fibers. The water absorption and donating properties of these hydrogels were assessed by placing them in contact with gelatine gels. The results showed that alginate hydrogels with a high alginate content are capable of absorbing water from gelatine gels, while those with a high water content are able to donate water. When silver containing particles were mixed into the alginate solution, it was also possible to prepare fiber reinforced alginate hydrogel with antimicrobial properties. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008