Rheological behavior of semidilute solutions of ultrahigh-molecular-weight polyethylene

Autor:	P. M. Pakhomov, V. P. Galitsyn, N. I. Kuz’min, N. N. Machalaba
Rok vydání:	2011
Předmět:	Materials science General Chemical Engineering Rheometer General Chemistry Pure shear Non-Newtonian fluid Condensed Matter::Soft Condensed Matter Physics::Fluid Dynamics Shear rate Viscosity Shear stress General Materials Science Composite material Shear flow Spinning
Zdroj:	Fibre Chemistry. 42:202-208
ISSN:	1573-8493 0015-0541
DOI:	10.1007/s10692-011-9254-y
Popis:	The rheological behavior of spinning solutions of ultrahigh-molecular-weight polyethylene was investigated in stationary and dynamic conditions of shear flow. It was shown that at the shear rates characteristic of real spinning conditions, the elastic reaction of the solution is much higher than the viscous reaction. In conditions of constant shear stress that ensure non-Newtonian flow of the solution, the uniform decrease in the viscosity is replaced by an increase in time due to gradual formation of a cross-linked layer adjacent to the rotating disk of the working unit of the rheometer.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1d4f56c25067f611fdbc0f07423220a4 https://doi.org/10.1007/s10692-011-9254-y Zobrazit plný text záznamu Plný text ve formátu PDF