Friction and wear behaviour of hydrophobin films under sliding on stainless steel

Timo J. Hakala, F. Wählisch, Päivi Laaksonen, Tiina Ahlroos, Aino Helle, Markus Linder, R. Bennewitz, Kenneth Holmberg

    Research output: Contribution to conferenceConference articleScientificpeer-review

    Abstract

    Hydrophobins are small amphiphilic proteins that adhere and form highly hydrated layers on stainless steel surfaces. These layers may contain 40 - 60 % of bound water depending on the conditions such as ionic strength and molecular structure of hydrophobin. In sliding contacts of stainless steel ball on stainless steel disc the friction properties did not depend on load when surfaces were lubricated by hydrophobins. Increased sliding velocity occasionally led to decrease in friction when surfaces were lubricated with the glycosylated hydrophobins in buffer solution. This effect may be caused by tribofilm formation on the worn surface of the stainless steel sphere during sliding
    Original languageEnglish
    Publication statusPublished - 2012
    MoE publication typeNot Eligible
    Event15th Nordic Symposium on Tribology, NORDTRIB 2012 - Trondheim, Norway
    Duration: 12 Jun 201215 Jun 2012
    Conference number: 15

    Conference

    Conference15th Nordic Symposium on Tribology, NORDTRIB 2012
    Abbreviated titleNORDTRIB 2012
    CountryNorway
    CityTrondheim
    Period12/06/1215/06/12

    Fingerprint

    Stainless steel
    Wear of materials
    Friction
    Ionic strength
    Molecular structure
    Proteins
    Water

    Keywords

    • Water based lubrication
    • hydrophobins
    • biolubrication

    Cite this

    Hakala, T. J., Wählisch, F., Laaksonen, P., Ahlroos, T., Helle, A., Linder, M., ... Holmberg, K. (2012). Friction and wear behaviour of hydrophobin films under sliding on stainless steel. Paper presented at 15th Nordic Symposium on Tribology, NORDTRIB 2012, Trondheim, Norway.
    Hakala, Timo J. ; Wählisch, F. ; Laaksonen, Päivi ; Ahlroos, Tiina ; Helle, Aino ; Linder, Markus ; Bennewitz, R. ; Holmberg, Kenneth. / Friction and wear behaviour of hydrophobin films under sliding on stainless steel. Paper presented at 15th Nordic Symposium on Tribology, NORDTRIB 2012, Trondheim, Norway.
    @conference{5244ed5e36b2490ababe3239759ab782,
    title = "Friction and wear behaviour of hydrophobin films under sliding on stainless steel",
    abstract = "Hydrophobins are small amphiphilic proteins that adhere and form highly hydrated layers on stainless steel surfaces. These layers may contain 40 - 60 {\%} of bound water depending on the conditions such as ionic strength and molecular structure of hydrophobin. In sliding contacts of stainless steel ball on stainless steel disc the friction properties did not depend on load when surfaces were lubricated by hydrophobins. Increased sliding velocity occasionally led to decrease in friction when surfaces were lubricated with the glycosylated hydrophobins in buffer solution. This effect may be caused by tribofilm formation on the worn surface of the stainless steel sphere during sliding",
    keywords = "Water based lubrication, hydrophobins, biolubrication",
    author = "Hakala, {Timo J.} and F. W{\"a}hlisch and P{\"a}ivi Laaksonen and Tiina Ahlroos and Aino Helle and Markus Linder and R. Bennewitz and Kenneth Holmberg",
    note = "Project code: 34126 Project code: 41202; 15th Nordic Symposium on Tribology, NORDTRIB 2012, NORDTRIB 2012 ; Conference date: 12-06-2012 Through 15-06-2012",
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    Hakala, TJ, Wählisch, F, Laaksonen, P, Ahlroos, T, Helle, A, Linder, M, Bennewitz, R & Holmberg, K 2012, 'Friction and wear behaviour of hydrophobin films under sliding on stainless steel', Paper presented at 15th Nordic Symposium on Tribology, NORDTRIB 2012, Trondheim, Norway, 12/06/12 - 15/06/12.

    Friction and wear behaviour of hydrophobin films under sliding on stainless steel. / Hakala, Timo J.; Wählisch, F.; Laaksonen, Päivi; Ahlroos, Tiina; Helle, Aino; Linder, Markus; Bennewitz, R.; Holmberg, Kenneth.

    2012. Paper presented at 15th Nordic Symposium on Tribology, NORDTRIB 2012, Trondheim, Norway.

    Research output: Contribution to conferenceConference articleScientificpeer-review

    TY - CONF

    T1 - Friction and wear behaviour of hydrophobin films under sliding on stainless steel

    AU - Hakala, Timo J.

    AU - Wählisch, F.

    AU - Laaksonen, Päivi

    AU - Ahlroos, Tiina

    AU - Helle, Aino

    AU - Linder, Markus

    AU - Bennewitz, R.

    AU - Holmberg, Kenneth

    N1 - Project code: 34126 Project code: 41202

    PY - 2012

    Y1 - 2012

    N2 - Hydrophobins are small amphiphilic proteins that adhere and form highly hydrated layers on stainless steel surfaces. These layers may contain 40 - 60 % of bound water depending on the conditions such as ionic strength and molecular structure of hydrophobin. In sliding contacts of stainless steel ball on stainless steel disc the friction properties did not depend on load when surfaces were lubricated by hydrophobins. Increased sliding velocity occasionally led to decrease in friction when surfaces were lubricated with the glycosylated hydrophobins in buffer solution. This effect may be caused by tribofilm formation on the worn surface of the stainless steel sphere during sliding

    AB - Hydrophobins are small amphiphilic proteins that adhere and form highly hydrated layers on stainless steel surfaces. These layers may contain 40 - 60 % of bound water depending on the conditions such as ionic strength and molecular structure of hydrophobin. In sliding contacts of stainless steel ball on stainless steel disc the friction properties did not depend on load when surfaces were lubricated by hydrophobins. Increased sliding velocity occasionally led to decrease in friction when surfaces were lubricated with the glycosylated hydrophobins in buffer solution. This effect may be caused by tribofilm formation on the worn surface of the stainless steel sphere during sliding

    KW - Water based lubrication

    KW - hydrophobins

    KW - biolubrication

    M3 - Conference article

    ER -

    Hakala TJ, Wählisch F, Laaksonen P, Ahlroos T, Helle A, Linder M et al. Friction and wear behaviour of hydrophobin films under sliding on stainless steel. 2012. Paper presented at 15th Nordic Symposium on Tribology, NORDTRIB 2012, Trondheim, Norway.