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

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

INM – Leibniz-Institut für Neue Materialien gGmbH

Research output: Contribution to conference › Conference article › Scientific › peer-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 language	English
Publication status	Published - 2012
MoE publication type	Not Eligible
Event	15th Nordic Symposium on Tribology, NORDTRIB 2012 - Trondheim, Norway Duration: 12 Jun 2012 → 15 Jun 2012 Conference number: 15

Conference

Conference	15th Nordic Symposium on Tribology, NORDTRIB 2012
Abbreviated title	NORDTRIB 2012
Country/Territory	Norway
City	Trondheim
Period	12/06/12 → 15/06/12

Keywords

Water based lubrication
hydrophobins
biolubrication

Cite this

@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",

year = "2012",

language = "English",

}

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 - Conference code: 15

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

T2 - 15th Nordic Symposium on Tribology, NORDTRIB 2012

Y2 - 12 June 2012 through 15 June 2012

ER -

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

Abstract

Conference

Keywords

Fingerprint

Cite this