| Frequency dependence of viscoelastic properties of medical grade silicones. | |
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MedLine Citation:
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PMID: 18823017 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Cylinders of medical grade silicone elastomers, (29 mm in diameter and 13 mm thick), immersed in physiological saline solution at 37 degrees C, were investigated by dynamic mechanical analysis (DMA). A sinusoidal cyclic compression of 40 +/- 5 N was applied over a frequency range, f, of 0.02-100 Hz. Values of the storage, E', and loss, E'', moduli for the cylinders were found to depend on f; the dependence of E' or E'' on the logarithm (base 10) of f was represented by a third-order polynomial. Above about 0.3 Hz, the cylindrical specimens appeared to be undergoing the onset of a transition from the rubbery to the glassy state. There was no significant difference between results obtained at 37 and 23 degrees C; pretreatment of specimens in physiological saline at 37 degrees C for 24 h and 29 days had no appreciable effect on the results. |
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Authors:
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A Mahomed; N M Chidi; D W L Hukins; S N Kukureka; D E T Shepherd |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of biomedical materials research. Part B, Applied biomaterials Volume: 89 ISSN: 1552-4981 ISO Abbreviation: J. Biomed. Mater. Res. Part B Appl. Biomater. Publication Date: 2009 Apr |
Date Detail:
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Created Date: 2009-03-16 Completed Date: 2009-05-11 Revised Date: 2011-12-01 |
Medline Journal Info:
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Nlm Unique ID: 101234238 Medline TA: J Biomed Mater Res B Appl Biomater Country: United States |
Other Details:
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Languages: eng Pagination: 210-6 Citation Subset: IM |
Affiliation:
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School of Mechanical Engineering, University of Birmingham, Edgbaston, Birmingham, United Kingdom. axm503@bham.ac.uk |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Biocompatible Materials
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chemistry* Elasticity Humans Materials Testing Prostheses and Implants Shear Strength Silicone Elastomers / chemistry* Tensile Strength Viscoelastic Substances / chemistry* |
| Grant Support | |
ID/Acronym/Agency:
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//Arthritis Research UK |
| Chemical | |
Reg. No./Substance:
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0/Biocompatible Materials; 0/Silicone Elastomers; 0/Viscoelastic Substances |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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