Reducing Friction in Sliding Contacts with Skin Equivalent Silicone Rubber by Polymer Coatings in the Presence of water or Silicone Oil

Xiangqiong Zeng, E. van der Heide, Herman Lenting

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    Abstract

    The friction and lubrication of skin plays a major role in product development for cosmetics, textiles, artificial turf and medical devices. Yet, few tools are available to actually influence friction in skin product interactions, in a deterministic way. A promising direction could be the development of polymer coatings in combination the concept of hydration lubrication [1][2]. Experimental work was done using a polymer coated glass plates and skin substitute silicon skin L7350. This mechanical skin equivalent is used by FIFA for determination of skin-surface friction in combination with artificial grass. Friction experiments at boundary lubrication conditions showed values for the coefficient of friction lower than 0.01 in case of hydrated PAA-g-PEG coatings, measured for a sliding contact with a flat-on-flat configuration. The effect of binding dodecane and silicone oil to polymeric coating structures based on PAA, PEG, PE or PDMS was measured and compared with the results obtained in an aqueous environment. The results show combinations for which the coefficient of friction was reduced from f ? 1-2 at dry conditions to below f = 0.1 a sliding velocity of 10 mm/s.
    Friction was reduced most in the presence of water, yet silicone oil could serve as alternative. Results with a pin-on-plate setup and coatings based on polysorbitol and polyglyceryl confirm the excellent friction reducing properties of hydrophilic polymer coatings that can bind water to the surface. The polymerization degree of polysorbitol and polyglyceryl is a critical parameter for the lifetime of the polymer coatings in an aqueous environment.
    Original languageEnglish
    Title of host publicationProceedings of the International Joint Tribology Conference 2011
    EditorsQ.J. Wang
    Place of PublicationLos Angeles, CA
    PublisherIJTC
    Publication statusPublished - 24 Oct 2011
    EventASME/STLE 2011 International Joint Tribology Conference, IJTC 2011 - Los Angeles, United States
    Duration: 24 Oct 201126 Oct 2011

    Conference

    ConferenceASME/STLE 2011 International Joint Tribology Conference, IJTC 2011
    Abbreviated titleIJTC
    CountryUnited States
    CityLos Angeles
    Period24/10/1126/10/11

    Keywords

    • METIS-284212

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  • Cite this

    Zeng, X., van der Heide, E., & Lenting, H. (2011). Reducing Friction in Sliding Contacts with Skin Equivalent Silicone Rubber by Polymer Coatings in the Presence of water or Silicone Oil. In Q. J. Wang (Ed.), Proceedings of the International Joint Tribology Conference 2011 [Paper #61079] Los Angeles, CA: IJTC.