Journal Article

FZJ-2022-03882

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Air, Helium and Water Leakage in Rubber O-ring Seals with Application to Syringes

Huon, C. ; Tiwari, A. ; Rotella, C. ; Mangiagalli, P. ; Persson, B. (Corresponding author)FZJ*

2022
Springer Science Business Media B.V. Dordrecht

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Please use a persistent id in citations: http://hdl.handle.net/2128/32161  doi:10.1007/s11249-022-01574-7

Abstract: We study the leakage of fluids (liquids or gases) in syringes with glass barrel, steel plunger and rubber O-ring stopper. Theleakrate depends on the interfacial surface roughness and on the viscoelastic properties of the rubber. Random surface rough-ness is produced by sandblasting the rubber O-rings. We present a very simple theory for gas flow which takes into accountboth the diffusive and ballistic flow. The theory shows that the interfacial fluid flow (leakage) channels are so narrow thatthe gas flow is mainly ballistic (the so called Knudsen limit). We compare the leakrate obtained using air and helium. Forbarrels filled with water we observe no leakage even if leakage occurs for gases. We interpret this as resulting from capillary(Laplace pressure or surface energy) effects.Keywords Syringes · Seals · Helium leakage · Ballistic gas flow · Interfacial separation · Viscoelasticity

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (IAS-1)
2. Quanten-Theorie der Materialien (PGI-1)
3. JARA-FIT (JARA-FIT)
4. JARA - HPC (JARA-HPC)

Research Program(s):

1. 5211 - Topological Matter (POF4-521) (POF4-521)

Appears in the scientific report 2022

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; DEAL Springer ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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