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Title: Experimental density and PC-SAFT modeling of Krytox (R) (perfluoropolyether) at pressures to 275 MPa and temperatures to 533 K

Abstract

Density data from 298 to 533 K and to 275 MPa are reported for Krytox® GPL 102, a poly(perfluoropropyl ether) (PFPE) with a CF3-branched fluoropropylether repeat group. The Tait equation fit to each density isotherm have mean absolute percent deviations (MAPD) between 0.11 and 0.30% with standard deviations (SD) not exceeding 0.20%. The perturbed-chain statistical associating fluid theory (PC-SAFT) fit to the density data has an MAPD of 0.67% and an SD of 0.67%. Likewise the PC-SAFT fit to previously reported density data of Demnum®, a PFPE with an n-fluoropropylether repeat group, has an MAPD of 0.22% and a SD of 0.21% for Demnum® S-20 and an MAPD of 0.27% with a SD of 0.14% for Demnum® S-65. The trends exhibited by the PC-SAFT pure component parameters obtained from the fits of these three PFPEs are similar to those reported for linear and branched hydrocarbons with the same number of carbons.

Authors:
; ;
Publication Date:
Research Org.:
National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States). In-house Research; National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE)
OSTI Identifier:
1114758
Report Number(s):
TPR-3833
Journal ID: ISSN 0378-3812
DOE Contract Number:  
DE-FE0004000
Resource Type:
Journal Article
Journal Name:
Fluid Phase Equilibria
Additional Journal Information:
Journal Volume: 332; Journal ID: ISSN 0378-3812
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; Perfluoropolyether; PFPE; Krytox®; Demnum®; Lubricant; High pressure; Density; PC-SAFT

Citation Formats

Bamgbade, B. A., Wu, Y., and Burgess, W. A. Experimental density and PC-SAFT modeling of Krytox (R) (perfluoropolyether) at pressures to 275 MPa and temperatures to 533 K. United States: N. p., 2012. Web. doi:10.1016/j.fluid.2012.07.008.
Bamgbade, B. A., Wu, Y., & Burgess, W. A. Experimental density and PC-SAFT modeling of Krytox (R) (perfluoropolyether) at pressures to 275 MPa and temperatures to 533 K. United States. doi:10.1016/j.fluid.2012.07.008.
Bamgbade, B. A., Wu, Y., and Burgess, W. A. Thu . "Experimental density and PC-SAFT modeling of Krytox (R) (perfluoropolyether) at pressures to 275 MPa and temperatures to 533 K". United States. doi:10.1016/j.fluid.2012.07.008.
@article{osti_1114758,
title = {Experimental density and PC-SAFT modeling of Krytox (R) (perfluoropolyether) at pressures to 275 MPa and temperatures to 533 K},
author = {Bamgbade, B. A. and Wu, Y. and Burgess, W. A.},
abstractNote = {Density data from 298 to 533 K and to 275 MPa are reported for Krytox® GPL 102, a poly(perfluoropropyl ether) (PFPE) with a CF3-branched fluoropropylether repeat group. The Tait equation fit to each density isotherm have mean absolute percent deviations (MAPD) between 0.11 and 0.30% with standard deviations (SD) not exceeding 0.20%. The perturbed-chain statistical associating fluid theory (PC-SAFT) fit to the density data has an MAPD of 0.67% and an SD of 0.67%. Likewise the PC-SAFT fit to previously reported density data of Demnum®, a PFPE with an n-fluoropropylether repeat group, has an MAPD of 0.22% and a SD of 0.21% for Demnum® S-20 and an MAPD of 0.27% with a SD of 0.14% for Demnum® S-65. The trends exhibited by the PC-SAFT pure component parameters obtained from the fits of these three PFPEs are similar to those reported for linear and branched hydrocarbons with the same number of carbons.},
doi = {10.1016/j.fluid.2012.07.008},
journal = {Fluid Phase Equilibria},
issn = {0378-3812},
number = ,
volume = 332,
place = {United States},
year = {2012},
month = {10}
}