Controllable Friction of Green Ionic Liquids via Environmental Humidity
Document identifier: oai:DiVA.org:ltu-77681
Access full text here:
10.1002/adem.201901253Keyword: Engineering and Technology,
Mechanical Engineering,
Tribology (Interacting Surfaces including Friction, Lubrication and Wear),
Teknik och teknologier,
Maskinteknik,
Tribologi (ytteknik omfattande friktion, nötning och smörjning),
Friction control,
Humidity,
Ionic liquids,
Viscosity,
Machine Elements,
MaskinelementPublication year: 2020Relevant Sustainable Development Goals (SDGs):
The SDG label(s) above have been assigned by OSDG.aiAbstract: Intelligent control of friction is an attractive but challenging topic. In this work, it is investigated if it would be possible to adjust friction in a lubricated contact by controlling environmental humidity. By exploiting the ability to adjust the environmental humidity by various saturated salt solutions, friction behavior of contacts lubricated with Choline l‐Proline ([Cho][Pro]) is modulated in a wide range of relative humidity (RH). The friction increases when the environmental humidity is increased and decreases when water is partially evaporated to a lower RH. It is thus possible to control friction by environmental humidity. The addition of water in ionic liquids (ILs) causes a decrease in viscosity, but as the tests are calculated to be performed in boundary lubrication the viscosity change is not the main factor for the change in friction. The friction sensitivity of RH can be explained by the effect of adhesion on the water uptake from humid air by [Cho][Pro]. Furthermore, the reversible changes of H‐bond types determined by the water content could be another explanation to the altered friction.
Authors
Jing Hua
Luleå tekniska universitet; Maskinelement
Other publications
>>
Marcus Björling
Luleå tekniska universitet; Maskinelement
Other publications
>>
Roland Larsson
Luleå tekniska universitet; Maskinelement
Other publications
>>
Yijun Shi
Luleå tekniska universitet; Maskinelement
Other publications
>>
Record metadata
Click to view metadata
header:
identifier: oai:DiVA.org:ltu-77681
datestamp: 2021-04-19T12:44:50Z
setSpec: SwePub-ltu
metadata:
mods:
@attributes:
version: 3.7
recordInfo:
recordContentSource: ltu
recordCreationDate: 2020-02-10
identifier:
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-77681
10.1002/adem.201901253
2-s2.0-85079450714
titleInfo:
@attributes:
lang: eng
title: Controllable Friction of Green Ionic Liquids via Environmental Humidity
abstract: Intelligent control of friction is an attractive but challenging topic. In this work it is investigated if it would be possible to adjust friction in a lubricated contact by controlling environmental humidity. By exploiting the ability to adjust the environmental humidity by various saturated salt solutions friction behavior of contacts lubricated with Choline l‐Proline (ChoPro) is modulated in a wide range of relative humidity (RH). The friction increases when the environmental humidity is increased and decreases when water is partially evaporated to a lower RH. It is thus possible to control friction by environmental humidity. The addition of water in ionic liquids (ILs) causes a decrease in viscosity but as the tests are calculated to be performed in boundary lubrication the viscosity change is not the main factor for the change in friction. The friction sensitivity of RH can be explained by the effect of adhesion on the water uptake from humid air by ChoPro. Furthermore the reversible changes of H‐bond types determined by the water content could be another explanation to the altered friction.
subject:
@attributes:
lang: eng
authority: uka.se
topic:
Engineering and Technology
Mechanical Engineering
Tribology (Interacting Surfaces including Friction Lubrication and Wear)
@attributes:
lang: swe
authority: uka.se
topic:
Teknik och teknologier
Maskinteknik
Tribologi (ytteknik omfattande friktion nötning och smörjning)
@attributes:
lang: eng
topic: friction control
@attributes:
lang: eng
topic: humidity
@attributes:
lang: eng
topic: ionic liquids
@attributes:
lang: eng
topic: viscosity
@attributes:
lang: eng
authority: ltu
topic: Machine Elements
genre: Research subject
@attributes:
lang: swe
authority: ltu
topic: Maskinelement
genre: Research subject
language:
languageTerm: eng
genre:
publication/journal-article
ref
note:
Published
4
Validerad;2020;Nivå 2;2020-06-03 (alebob)
name:
@attributes:
type: personal
authority: ltu
namePart:
Hua
Jing
1989-
role:
roleTerm: aut
affiliation:
Luleå tekniska universitet
Maskinelement
nameIdentifier:
jinhua
0000-0001-8157-4644
@attributes:
type: personal
authority: ltu
namePart:
Björling
Marcus
1983-
role:
roleTerm: aut
affiliation:
Luleå tekniska universitet
Maskinelement
nameIdentifier:
marbjo
0000-0002-4271-0380
@attributes:
type: personal
authority: ltu
namePart:
Larsson
Roland
role:
roleTerm: aut
affiliation:
Luleå tekniska universitet
Maskinelement
nameIdentifier:
rola
0000-0001-9110-2819
@attributes:
type: personal
authority: ltu
namePart:
Shi
Yijun
role:
roleTerm: aut
affiliation:
Luleå tekniska universitet
Maskinelement
nameIdentifier:
yijshi
0000-0001-6085-7880
relatedItem:
@attributes:
type: host
genre: grantAgreement
name:
@attributes:
type: corporate
namePart: Forskningsrådet Formas
role:
roleTerm: fnd
identifier: 2016-01098
@attributes:
type: host
genre: grantAgreement
name:
@attributes:
type: corporate
namePart: Vetenskapsrådet
role:
roleTerm: fnd
identifier: 2017-04914
@attributes:
type: host
genre: grantAgreement
name:
@attributes:
type: corporate
namePart: Energimyndigheten
role:
roleTerm: fnd
identifier: 2018-003910
@attributes:
type: host
titleInfo:
title: Advanced Engineering Materials
identifier:
1438-1656
1527-2648
part:
detail:
@attributes:
type: volume
number: 22
@attributes:
type: issue
number: 5
@attributes:
type: artNo
number: 1901253
originInfo:
dateIssued: 2020
publisher: John Wiley & Sons
physicalDescription:
form: print
typeOfResource: text