𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Dynamic mechanical properties of medical grade silicone elastomer stored in simulated body fluids

✍ Scribed by Carl Ward, Thomas ;Timothy Perry, John

Book ID
102874679
Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
928 KB
Volume
15
Category
Article
ISSN
0021-9304

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✦ Synopsis

Abstract

Medical grade silicone rubber samples were immersed in distilled water and in pseudo‐extracellular fluid (PECF) at 37.5Β°C for up to four months. Periodically, the storage modulus and log decrement of the samples were measured on a torsion pendulum. Up to 20% increases in storage modulus and about 40% decreases in log decrement were found over the four months independent of sample surface area. Similar trends were seen in both distilled water and in PECF. Higher (59Β°C) storage temperatures accelerated the changes. Small amounts of moisture uptake were detected. However, the presence of water in the samples did not cause the change in mechanical properties.

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