NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Measurement and Correlation of Densities and Dynamic Viscosities of Perfluoropolyether Oils

Published

Author(s)

Tara J. Fortin, Arno D. Laesecke, Jason A. Widegren

Abstract

The densities and dynamic viscosities of five different polydisperse perfluoropolyethers (PFPE) were measured at atmospheric pressure over the combined temperature range 263.15 K to 373.15 K. For one PFPE being considered as a high-temperature high-pressure viscosity standard reference material, measurements were made on two separate samples to examine the lot-to-lot variability in density and viscosity; significant variability was observed only for the viscosity data. Experimental data were correlated as a function of temperature. A simple quadratic equation was used for density, while three equations (DIPPR, VFT, and Waterman) were applied to the viscosity data. The DIPPR equation represented the viscosity data with deviations approximately an order of magnitude lower than the other two equations.
Citation
Industrial & Engineering Chemistry Research
Volume
55
Pub Type
Journals

Download Paper

DOI Link

Keywords

Ambient pressure, correlation, lubrication oil, orthogonal distance regression, rotating concentric cylinder viscometer, temperature dependence, vibrating-tube densimeter
Thermochemical properties and Flow metrology and rheology

Citation

Fortin, T. , Laesecke, A. and Widegren, J. (2016), Measurement and Correlation of Densities and Dynamic Viscosities of Perfluoropolyether Oils, Industrial & Engineering Chemistry Research, [online], https://doi.org/10.1021/acs.iecr.6b01921 (Accessed October 21, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created July 22, 2016, Updated June 2, 2021
Was this page helpful?