Cosmetic powders are regularly employed in skin creams and cosmetic formulations to improve performance and enhance skin feel. A previous study investigated the effect of particle concentration and size on the lubricating properties of powder suspensions in smooth, compliant contacts [Timm et al., Tribol. Int. (2011)]. In this paper the tribological properties of cosmetic powder suspensions are investigated in compliant contacts having model fingerprintlike surface topography. Friction coefficients were measured for a series of powder suspensions with varying particle size and concentration in a polydimethylsiloxane (PDMS)/PDMS contact. A commercial tribometer (MTM, PCS Instruments) was employed to measure friction as a function of rubbing time (20 min), under pure sliding (50 mm/s) and low load (0.5 N) conditions. Compared to results using smooth surfaces, it was clear that surface topography has a pronounced affect on the timedependent tribological behavior of the cosmetic powder suspensions studied. A two-stage friction coefficient versus time curve was observed. By varying the particle size and concentration it was shown that the duration and magnitude of each stage can be controlled.
Skip Nav Destination
Article navigation
Research Article|
September 20 2011
Cosmetic powder suspensions in compliant, fingerprintlike contacts
K. Timm;
K. Timm
1
Beiersdorf AG, Research & Development
, Unnastraße 48, Hamburg, 20245, Germany
2Angewandte Physikalische Chemie,
Universität Heidelberg
, Im Neuenheimer Feld 253, Heidelberg, Germany
Search for other works by this author on:
C. Myant;
C. Myant
a)
3Tribology Group, Department of Mechanical Engineering,
Imperial College London
, London, SW7 2AZ, UK
Search for other works by this author on:
H. A. Spikes;
H. A. Spikes
3Tribology Group, Department of Mechanical Engineering,
Imperial College London
, London, SW7 2AZ, UK
Search for other works by this author on:
M. Schneider;
M. Schneider
4Institut für Mikrostrukturtechnik,
Karlsruher Institut für Technologie
, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, 76344, Germany
Search for other works by this author on:
T. Ladnorg;
T. Ladnorg
5Institut für Funktionelle Grenzflächen,
Karlsruher Institut für Technologie
, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, 76344, Germany
Search for other works by this author on:
M. Grunze
M. Grunze
2Angewandte Physikalische Chemie,
Universität Heidelberg
, Im Neuenheimer Feld 253, Heidelberg, Germany
Search for other works by this author on:
a)
Author to whom correspondence should be addressed; electronic mail: connor.myant@imperial.ac.uk
Biointerphases 6, 126–134 (2011)
Article history
Received:
July 08 2011
Accepted:
August 29 2011
Citation
K. Timm, C. Myant, H. A. Spikes, M. Schneider, T. Ladnorg, M. Grunze; Cosmetic powder suspensions in compliant, fingerprintlike contacts. Biointerphases 1 September 2011; 6 (3): 126–134. https://doi.org/10.1116/1.3640042
Download citation file:
Citing articles via
Cellular interactions with polystyrene nanoplastics—The role of particle size and protein corona
Shinji Kihara, Alexander Ashenden, et al.