Shear dependence of viscosity for perfluoropolyether fluids |
| |
| Authors: | M. J. R. Cantow T. Y. Ting E. M. Barrall II R. S. Porter E. R. George |
| |
| Affiliation: | (1) General Products Division, International Business Machines Corporation, 95193 San Jose, Cal., USA;(2) Polymer Science and Engineering Department, University of Massachusetts, 01003 Amherst, Mass., USA |
| |
| Abstract: | The shear dependence of the bulk viscosities of two structurally different types of perfluoropolyether fluids was determined by two different techniques. The first involved direct measurement in a high shear Couette viscometer, the second utilized the time-temperature superposition principle to establish master curves from viscosity determinations at low shear rates and temperature; the results are comparable. Both fluids begin to show non-Newtonian behavior at shear rates above 10,000 s–1. |
| |
| Keywords: | Perfluoropolyether shear dependence viscosity Couette high-shear viscometer |
| 本文献已被 SpringerLink 等数据库收录！ |
|
