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Analysis of the effective viscosity of thin interlayers of aliphatic liquids in the fields of fluctuation forces generated by solid substrates

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Abstract

It is established experimentally that the viscosity of micrometer interlayers of mineral motor oil and n-hexadecane between metal substrates differs from the viscosity of the isotropic liquid and depends on the shear strain rate. The observed difference is attributed to the formation of orientation-ordered layers in the field of fluctuation forces of the substrates; the thickness of these layers decreases with the intensity of the flow. The results of viscosimetric experiments are interpreted using a rheological model of a structurally inhomogeneous interlayer with “constant-viscosity” surface layers and an isotropic liquid between these layers. This model is employed for calculating the main structural parameters of such layers and the effect of the flow on them.

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Authors and Affiliations

  1. Mechnikov National University, Odessa, 65082, Ukraine

    B. A. Altoiz, S. V. Kiriyan & E. A. Shatagina

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  1. B. A. Altoiz
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  2. S. V. Kiriyan
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  3. E. A. Shatagina
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Correspondence to B. A. Altoiz.

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Original Russian Text © B.A. Altoiz, S.V. Kiriyan, E.A. Shatagina, 2010, published in Zhurnal Tekhnicheskoĭ Fiziki, 2010, Vol. 80, No. 10, pp. 37–40.

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Altoiz, B.A., Kiriyan, S.V. & Shatagina, E.A. Analysis of the effective viscosity of thin interlayers of aliphatic liquids in the fields of fluctuation forces generated by solid substrates. Tech. Phys. 55, 1426–1429 (2010). https://doi.org/10.1134/S1063784210100051

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  • DOI: https://doi.org/10.1134/S1063784210100051

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