Influence of the molecular structure on the viscosity of some alkoxyethanols

被引：23

作者：

Reghem, P

Baylaucq, A

Comuñas, MJP

Fernández, J

Boned, C

机构：

[1] CNRS, Fac Sci, UMR 5150, Lab Fluides Complexes, F-64013 Pau, France

[2] Univ Santiago de Compostela, Fac Fis, Dept Fis Aplicada, Lab Propiedades Termofis, E-15706 Santiago, Spain

来源：

FLUID PHASE EQUILIBRIA | 2005年 / 236卷 / 1-2期

关键词：

falling-body viscometer; high pressure; monoethylene glycol alkyl ether; alkoxyethanol; viscosity;

D O I：

10.1016/j.fluid.2005.02.009

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This work reports new measurements of the viscosity of some monoethylene glycol alkyl ether liquids: monoethylene glycol methyl ether (MEGME), monoethylene glycol ethyl ether (MEGEE) and monoethylene glycol iso-propyl ether (iso-MEGPE), up to 100 MPa at seven temperatures ranging from 293.15 to 353.15 K. The measurements at atmospheric pressure have been performed with an Ubbelohde-type glass capillary tube viscometer with an uncertainty of +/- 1%. At pressures up to 100 MPa the viscosity was determined with a falling-body viscometer with an uncertainty of +/- 2%. Using previous density data obtained at the laboratory, current measurements were used to study the dependence of the viscosity and of the molecular parameters of hard-sphere scheme and free-volume model on the molecular structure. (c) 2005 Elsevier B.V All rights reserved.

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收藏

页码：229 / 236

页数：8

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