The following study presents two methods established for characterizing the mechanical properties of polyvinyl alcohol hydrogel membranes. The first one, an instant deformation test with an automated machine allowed the determination of the elastic properties of the material, while the second permitted the determination of the viscoelastic properties with the use of the standard linear solid model while confirming the previously found elastic results. This is not trivial as clearly old fashioned tests such as the ASTM standard tension test where grips are used to hold the sample are not feasible to perform due to the fragile characteristics of this kind material that resemble delicate biological tissues. The results obtained are consistent with previous publications, where different methods where used, but an increase in the material strength was also found as the number of freezing/thawing cycles increased.
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ASME 2008 International Mechanical Engineering Congress and Exposition
October 31–November 6, 2008
Boston, Massachusetts, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-4863-0
PROCEEDINGS PAPER
Mechanical Characterization of a Freestanding Polyvinyl Alcohol Hydrogel Membrane
Edgar J. Montiel,
Edgar J. Montiel
Northeastern University, Boston, MA
Search for other works by this author on:
Kai-Tak Wan
Kai-Tak Wan
Northeastern University, Boston, MA
Search for other works by this author on:
Edgar J. Montiel
Northeastern University, Boston, MA
Kai-Tak Wan
Northeastern University, Boston, MA
Paper No:
IMECE2008-67446, pp. 689-692; 4 pages
Published Online:
August 26, 2009
Citation
Montiel, EJ, & Wan, K. "Mechanical Characterization of a Freestanding Polyvinyl Alcohol Hydrogel Membrane." Proceedings of the ASME 2008 International Mechanical Engineering Congress and Exposition. Volume 2: Biomedical and Biotechnology Engineering. Boston, Massachusetts, USA. October 31–November 6, 2008. pp. 689-692. ASME. https://doi.org/10.1115/IMECE2008-67446
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