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Polyelectrolyte Cellulose Gel with PEG/Water: Toward Fully Green Lubricating Grease
Luleå University of Technology.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0001-6085-7880
2020 (English)In: Carbohydrate Polymers, ISSN 0144-8617, E-ISSN 1879-1344, Vol. 230, article id 115670Article in journal (Refereed) Published
Abstract [en]

Developing a fully green lubricant is an urgent need due to the growing consciousness of environmental protection and dwindling resources. In this work, fully green gel lubricants were developed out of cellulose derivatives as gelator and mixture of water and poly(ethylene glycol) 200 (PEG 200) as the base fluid. The non-ionic hydroxyethyl cellulose (HEC) and anionic sodium carboxymethyl cellulose (NaCMC) were chosen to understand the effect of ionic and non-ionic gelators on the thermal, rheological and the tribological properties of the gel lubricant. HEC or NaCMC is demonstrated as effective additive to reduce wear, stabilize friction coefficient and enhance the thermal stability of developed lubricants. It is shown that anionic gelator will result in producing lower friction and wear in comparison to non-ionic gelator, which may be attributed to the possible tribo-film formation due to the negative charge in the NaCMC molecules and its larger molecular weight.

Place, publisher, year, edition, pages
Elsevier, 2020. Vol. 230, article id 115670
Keywords [en]
Cellulose, Green, lubricant, PEG/Water, Gel
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-76921DOI: 10.1016/j.carbpol.2019.115670ISI: 000504402300109PubMedID: 31887933Scopus ID: 2-s2.0-85075898313OAI: oai:DiVA.org:ltu-76921DiVA, id: diva2:1373898
Note

Validerad;2020;Nivå 2;2020-01-13 (johcin)

Available from: 2019-11-28 Created: 2019-11-28 Last updated: 2020-04-14Bibliographically approved

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Mu, LiwenShi, Yijun

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