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Two important facto...
Two important factors of selecting lignin as efficient lubricating additives in poly (ethylene glycol) : Hydrogen bond and molecular weight
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- Mu, Liwen (författare)
- Luleå tekniska universitet,Maskinelement,Intelligent Composites Laboratory, Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH, USA
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- Wu, Jian (författare)
- Luleå tekniska universitet,Maskinelement
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- Matsakas, Leonidas (författare)
- Luleå tekniska universitet,Kemiteknik
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- Chen, Minjiao (författare)
- Luleå tekniska universitet,Maskinelement
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- Rova, Ulrika (författare)
- Luleå tekniska universitet,Kemiteknik
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- Christakopoulos, Paul (författare)
- Luleå tekniska universitet,Kemiteknik
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- Zhu, Jiahua (författare)
- Intelligent Composites Laboratory, Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH, USA
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- Shi, Yijun (författare)
- Luleå tekniska universitet,Maskinelement
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(creator_code:org_t)
- Elsevier, 2019
- 2019
- Engelska.
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Ingår i: International Journal of Biological Macromolecules. - : Elsevier. - 0141-8130 .- 1879-0003. ; 129, s. 564-570
- Relaterad länk:
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https://www.scienced...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Lignin, one of the most abundant natural polymers, has been successfully used as an effective lubricant additive with high value. The chemical structure of lignin is very diverse and strongly affected by both the source of lignin (i.e. plant species) and the lignin extraction process. In this work, a series of lignin from different biomass sources (hard or soft wood) and extraction process (organosolv with or without acid catalyst) has been successfully incorporated into poly(ethylene glycol) (PEG) and fortified lubricating properties were achieved. The effects of different lignin on the rheological, thermal and tribological properties of the lignin/EG lubricants were systematically investigated by different characterization techniques. Lignin in PEG significantly improves the lubricating property, where a wear reduction of 93.8% was observed. The thermal and lubrication properties of the PEG lubricants filled with different kinds of lignin are tightly related to the synergistic state of hydrogen bonding and molecular weight distribution. Lignin with broader molecular weight distribution and higher hydroxyl content shows better adhesion on metal surfaces and strengthened lubricating film, which could be used as the efficient lubricating additives. This work provides a criterion for selecting appropriate lignin as the efficient lubricant additive and accelerates the application of lignin.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik -- Bioprocessteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology -- Bioprocess Technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Tribologi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Tribology (hsv//eng)
Nyckelord
- Lignin
- Lubrication
- Poly (ethylene glycol)
- Hydrogen bonding
- Molecular weight
- Maskinelement
- Machine Elements
- Biokemisk processteknik
- Biochemical Process Engineering
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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