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Lignin from Hardwood and Softwood Biomass as a Lubricating Additive to Ethylene Glycol
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Maskinelement. Intelligent Composites Laboratory, Department of Chemical and Biomolecular Engineering, The University of Akron.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Maskinelement.ORCID-id: 0000-0001-6137-5349
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Kemiteknik.ORCID-id: 0000-0002-3687-6173
Vise andre og tillknytning
2018 (engelsk)Inngår i: Molecules, ISSN 1420-3049, E-ISSN 1420-3049, Vol. 23, nr 3, artikkel-id 537Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Ethylene glycol (EG)-based lubricant was prepared with dissolved organosolv lignin from birch wood (BL) and softwood (SL) biomass. The effects of different lignin types on the rheological, thermal, and tribological properties of the lignin/EG lubricants were comprehensively investigated by various characterization techniques. Dissolving organosolv lignin in EG results in outstanding lubricating properties. Specifically, the wear volume of the disc by EG-44BL is only 8.9% of that lubricated by pure EG. The enhanced anti-wear property of the EG/lignin system could be attributed to the formation of a robust lubrication film and the strong adhesion of the lubricant on the contacting metal surface due to the presence of a dense hydrogen bonding (H-bonding) network. The lubricating performance of EG-BL outperforms EG-SL, which could be attributed to the denser H-bonding sites in BL and its broader molecular weight distribution. The disc wear loss of EG-44BL is only 45.7% of that lubricated by EG-44SL. Overall, H-bonding is the major contributor to the different tribological properties of BL and SL in EG-based lubricants.

sted, utgiver, år, opplag, sider
MDPI, 2018. Vol. 23, nr 3, artikkel-id 537
HSV kategori
Forskningsprogram
Maskinelement; Biokemisk processteknik; Kemisk teknologi
Identifikatorer
URN: urn:nbn:se:ltu:diva-67800DOI: 10.3390/molecules23030537ISI: 000428514100028PubMedID: 29495559Scopus ID: 2-s2.0-85043353975OAI: oai:DiVA.org:ltu-67800DiVA, id: diva2:1186734
Merknad

Validerad;2018;Nivå 2;2018-03-01 (andbra)

Tilgjengelig fra: 2018-03-01 Laget: 2018-03-01 Sist oppdatert: 2019-04-02bibliografisk kontrollert

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Mu, LiwenWu, JianMatsakas, LeonidasGrahn, MattiasRova, UlrikaChristakopoulos, PaulShi, Yijun

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