Rheological and Wetting Properties of Environmentally Acceptable Lubricants (EALs) for Application in Stern Tube Seals

The use of Environmentally Acceptable Lubricants (EALs) for stern tube lubrication is increasing. Although the machine components of a sailing vessel are designed to operate together with mineral oil-based lubricants, these are being replaced by the less environmentally harmful EALs. Little is known...

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Main Authors: F. Xavier Borras, Matthijn B. de Rooij, Dik J. Schipper
Format: Article
Language:English
Published: MDPI AG 2018-11-01
Series:Lubricants
Subjects:
Online Access:https://www.mdpi.com/2075-4442/6/4/100
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spelling doaj-dbbd4a89b8fa47ec81b2aacc0619337f2020-11-25T00:34:55ZengMDPI AGLubricants2075-44422018-11-016410010.3390/lubricants6040100lubricants6040100Rheological and Wetting Properties of Environmentally Acceptable Lubricants (EALs) for Application in Stern Tube SealsF. Xavier Borras0Matthijn B. de Rooij1Dik J. Schipper2Surface Technology and Tribology, University of Twente, 7522NB Enschede, The NetherlandsSurface Technology and Tribology, University of Twente, 7522NB Enschede, The NetherlandsSurface Technology and Tribology, University of Twente, 7522NB Enschede, The NetherlandsThe use of Environmentally Acceptable Lubricants (EALs) for stern tube lubrication is increasing. Although the machine components of a sailing vessel are designed to operate together with mineral oil-based lubricants, these are being replaced by the less environmentally harmful EALs. Little is known about the rheological performance of EALs in particular at the high shear rates that occur in stern tube seals. In this study, the viscosity and wetting properties of a set of different EALs is analysed and compared to traditional mineral oil-based lubricants using a set of experimental techniques. Some of the EALs present Newtonian behavior whereas other show shear thinning. No significant difference in surface tension was observed between the different lubricants.https://www.mdpi.com/2075-4442/6/4/100lubricantmarinerheologyEnvironmentally Acceptable Lubricants (EAL)stern tubeenvironmentalshear thinning
collection DOAJ
language English
format Article
sources DOAJ
author F. Xavier Borras
Matthijn B. de Rooij
Dik J. Schipper
spellingShingle F. Xavier Borras
Matthijn B. de Rooij
Dik J. Schipper
Rheological and Wetting Properties of Environmentally Acceptable Lubricants (EALs) for Application in Stern Tube Seals
Lubricants
lubricant
marine
rheology
Environmentally Acceptable Lubricants (EAL)
stern tube
environmental
shear thinning
author_facet F. Xavier Borras
Matthijn B. de Rooij
Dik J. Schipper
author_sort F. Xavier Borras
title Rheological and Wetting Properties of Environmentally Acceptable Lubricants (EALs) for Application in Stern Tube Seals
title_short Rheological and Wetting Properties of Environmentally Acceptable Lubricants (EALs) for Application in Stern Tube Seals
title_full Rheological and Wetting Properties of Environmentally Acceptable Lubricants (EALs) for Application in Stern Tube Seals
title_fullStr Rheological and Wetting Properties of Environmentally Acceptable Lubricants (EALs) for Application in Stern Tube Seals
title_full_unstemmed Rheological and Wetting Properties of Environmentally Acceptable Lubricants (EALs) for Application in Stern Tube Seals
title_sort rheological and wetting properties of environmentally acceptable lubricants (eals) for application in stern tube seals
publisher MDPI AG
series Lubricants
issn 2075-4442
publishDate 2018-11-01
description The use of Environmentally Acceptable Lubricants (EALs) for stern tube lubrication is increasing. Although the machine components of a sailing vessel are designed to operate together with mineral oil-based lubricants, these are being replaced by the less environmentally harmful EALs. Little is known about the rheological performance of EALs in particular at the high shear rates that occur in stern tube seals. In this study, the viscosity and wetting properties of a set of different EALs is analysed and compared to traditional mineral oil-based lubricants using a set of experimental techniques. Some of the EALs present Newtonian behavior whereas other show shear thinning. No significant difference in surface tension was observed between the different lubricants.
topic lubricant
marine
rheology
Environmentally Acceptable Lubricants (EAL)
stern tube
environmental
shear thinning
url https://www.mdpi.com/2075-4442/6/4/100
work_keys_str_mv AT fxavierborras rheologicalandwettingpropertiesofenvironmentallyacceptablelubricantsealsforapplicationinsterntubeseals
AT matthijnbderooij rheologicalandwettingpropertiesofenvironmentallyacceptablelubricantsealsforapplicationinsterntubeseals
AT dikjschipper rheologicalandwettingpropertiesofenvironmentallyacceptablelubricantsealsforapplicationinsterntubeseals
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