Premium
Transient length dilation vs. transient increase in permeability of natural rubber films
Author(s) -
Pope D. S.,
Koros W. J.,
JagurGrodzinski J.
Publication year - 1991
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.1991.070430313
Subject(s) - natural rubber , permeability (electromagnetism) , materials science , transient (computer programming) , composite material , dilation (metric space) , mechanics , membrane , chemistry , mathematics , physics , geometry , biochemistry , computer science , operating system
Air dissolved under pressure in a film, made from natural rubber, causes its slight dilation. Sudden decompression of this film leads to its large transient dilation that afterwards vanishes within less than a minute (τ ≈ 20 s). Such transient expansion is apparently caused by internal stresses due to oversaturation. This behavior is analogous to the previously reported transient increase in the permeability to gases of the suddenly decompressed polymeric membranes. A clear correlation between results derived from the dilation and the permeability measurements seems to be evident.