2026-04-18T06:06:48Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/110992025-11-26T01:05:33Zcom_10259_5822com_10259_5086com_10259_2604col_10259_5823

Ruiz Fernández, Virginia 858 600 0000-0002-0466-0634 Yate, Luis 43beea38-b3c9-4a01-a4a8-8fd12fc6ee15 600 Langer, Judith d9a98a6e-bea4-4ad6-a83a-c7e31fc30784 Kosta, Ivet 38e8bdf4-294f-44e1-a64b-1900388b26cc Grande, Hans J. c8ff9d1e-6b7b-4b80-ac09-068a3faaa23f 600 Tena Zaera, Ramón db389d5e-e233-4c05-bb02-1599d695bd66 600 2025-11-25T11:36:48Z 2025-11-25T11:36:48Z 2019-09 0301-679X https://hdl.handle.net/10259/11099 10.1016/j.triboint.2019.05.001 Poly(ethylene glycol) (PEG) chains were covalently grafted onto carbon black (CB) using a PEG-terminated trimethoxysilane, yielding PEGylated CB additives (CB-SiPEG) with different SiPEG contents. Unlike pristine CB, CB-SiPEG was readily dispersed in PEG200 base oil, with CB-SiPEG hydrodynamic particle sizes being considerably smaller than those of pristine CB. At optimal SiPEG content, friction coefficient and specific wear rate in ball-on-disk tribometer tests were reduced by 35% and 67% respectively, with 1% wt. CB-SiPEG compared to PEG200 alone. In contrast, pristine CB, alone or with unbound SiPEG, did not show friction-reducing or antiwear capacity. Disk analysis supports CB-SiPEG surface deposition forming a protective tribofilm. Hydrodynamic particle size and lubricating performance of CB-SiPEG/PEG200 blends were preserved after 6 months, indicating high dispersion stability. Financial support from Diputación Foral de Gipuzkoa (OIL project, ref. 188/2017) is gratefully acknowledged. application/pdf eng Elsevier Tribology International. 2018, V. 137, p. 228-235 https://doi.org/10.1016/j.triboint.2019.05.001 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Carbon black PEGylation Lubricant nanoadditives High dispersibility Lubricantes Lubrication and lubricants PEGylated carbon black as lubricant nanoadditive with enhanced dispersion stability and tribological performance info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Tribology International 137 228 235 THUMBNAIL Ruiz-Tribol_Int_2019.pdf.jpg Ruiz-Tribol_Int_2019.pdf.jpg IM Thumbnail image/jpeg 4419 https://riubu.ubu.es/bitstream/10259/11099/4/Ruiz-Tribol_Int_2019.pdf.jpg 1ba0149fce038eb249cabb3d4bbc27b9 MD5 4 LICENSE license.txt license.txt text/plain; charset=utf-8 999 https://riubu.ubu.es/bitstream/10259/11099/3/license.txt b295bcbce42e2caabeb0c623d3860c06 MD5 3 CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 805 https://riubu.ubu.es/bitstream/10259/11099/2/license_rdf 4460e5956bc1d1639be9ae6146a50347 MD5 2 ORIGINAL Ruiz-Tribol_Int_2019.pdf Ruiz-Tribol_Int_2019.pdf application/pdf 1251962 https://riubu.ubu.es/bitstream/10259/11099/1/Ruiz-Tribol_Int_2019.pdf 123fa11f4c3f5a20f4d6bd54f1fa038c MD5 1 10259/11099 oai:riubu.ubu.es:10259/11099 2025-11-26 02:05:33.574 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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