Premium
Mechanical degradation of dilute solutions of high polymers in capillary tube flow
Author(s) -
Culter John D.,
Zakin Jacques L.,
Patterson Gary K.
Publication year - 1975
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.1975.070191210
Subject(s) - capillary action , laminar flow , degradation (telecommunications) , polymer , materials science , tube (container) , polymer degradation , turbulence , flow (mathematics) , yield (engineering) , composite material , shear stress , mechanics , physics , computer science , telecommunications
Experimental results on mechanical degradation in capillary tubes of polyisobutylene polymers in dilute solution are described. In laminar flow, degradation is independent of tube length, indicating that entrance effects are dominant. This shows that capillary experiments do not yield explicit information on the effect of shear stress on mechanical degradation. In turbulent flow, large entrance effects are also observed, but some degradation does take place in the fully developed flow region.