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Foaming properties of hydraulic fluids

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Chemistry and Technology of Fuels and Oils Aims and scope

Conclusions

  1. 1.

    The foaming properties and nonaqueous working liquids based on petroleum fractions, silicones and phosphororganic oligomers were studied in the temperature range −60 to 150–250°C.

  2. 2.

    It was shown that foam stability depends not only on the temperature and nature of the experimental liquid but also on the temperature difference between the gas and liquid phases and the presence of volatile components in the liquid.

  3. 3.

    A study was made of the foam suppressing action of fluorine-substituted silicone additives relative to liquids based on petroleum fractions, alkylarylchlorsiloxanes and mixtures of alkylsiloxanes with dioctylsebacate in the temperature range 20–100°C.

  4. 4.

    It was shown that the effect of the additive depends on concentration and temperature. When the additive is in a state of molecular solution it acts as a foam stabilizer and when it is an insoluble liquid phase it is an effective foam suppressor.

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Literature cited

  1. Methods of Testing Aircraft Hydraulic Fluids, First Stage (Preliminary Laboratory Tests) [in Russian], Izd. Gos. Standardov (State Committee of Standards) (1968).

  2. R. E. Hatton, in; Liquids for Hydraulic System [Russian translation], Edited by V. V. Vainshtoka, Izd. Khimiya (1965).

  3. G. I. Kichkin, Khim. i Tekhnol. Topliv i Masel, No. 4 (1966).

  4. V. N. Prigorodov, Zavod. Lab., No. 10 (1969).

  5. S. Ross, J. Phys. Coll. Chem.,54, No. 3 (1950).

  6. L. T. Shearer and W. W. Alkers, J. Phys. Chem.,62 (1958).

  7. B. Ya. Teitel'baum, T. A. Gortalova, and S. G. Ganelina, Kolloidn. Zh.,12, No. 4 (1950); B. Ya. Teitel'baum, Kolloidn. Zh.,12, No. 5 (1950).

  8. S. Rossand Haak, J. Phys. Chem.,62 (1958).

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Authors and Affiliations

  1. All-Union Scientific-Research Institute for Study of Aviation Materials (VIAM), USSR

    V. N. Prigorodov & L. V. Gornets

Authors
  1. V. N. Prigorodov
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  2. L. V. Gornets
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 9, pp. 38–42, September, 1970.

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Prigorodov, V.N., Gornets, L.V. Foaming properties of hydraulic fluids. Chem Technol Fuels Oils 6, 688–691 (1970). https://doi.org/10.1007/BF00716547

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  • DOI: https://doi.org/10.1007/BF00716547

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