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Effect of natural exposure in space on the physicomechanical properties of fiberglass

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Mechanics of Composite Materials Aims and scope

Conclusions

  1. 1.

    As a result of the action of ultraviolet and ionizing radiations and thermal cycling, partial destruction of the adhesive, which causes partial removal of the polymer from the irradiated surface, and a reduction of the dynamic moduli of elasticity and the speed of sound in the glasslike state are observed in KMU-3l. In the case of shielding of the fiberglass surface with a protective film, damage of the sample surface is eliminated.

  2. 2.

    Prolonged action of natural factors causes the appearance of additional transverse bonds due to the formation of reactive groups, a reduction of the internal stresses, and an increase in the structural uniformity of the adhesive, which results in an improvement of a number of physicomechanical indicators, an expansion of the temperature range of the work capacity, and a stabilization of the physicomechanical characteristics.

  3. 3.

    KMU-3l fiberglass on the whole preserves for 686 days a high level of physicomechanical characteristics and a work capacity over a wide temperature range.

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Literature cited

  1. I. P. Khoroshilova, T. R. Kapitonova, and V. P. Lozovskaya, “KMU-3148-03, KMU-l-04n, and KMU-3 epoxy fiberglasses,” in: Aviation Materials. Nonmetallic Composite Materials [in Russian], No. 2, Moscow (1977), pp. 19–23.

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  2. O. V. Startsev and I. I. Perepechko, “A torsion pendulum — a device for testing plastics,” Dep. VIMI, No. VM D03000 (1977).

  3. I. I. Perepechko, Acoustical Methods of Investigating Polymers [in Russian], Moscow (1973).

  4. I. I. Perepechko and L. A. Kvacheva, Vysokomolekulyar. Soed., Ser. B,11, No. 1, 3 (1969).

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Authors and Affiliations

  1. Moscow

    G. M. Gunyaev, M. I. Dushin, Yu. N. Ivonin, L. A. Kvacheva, V. V. Mikhailov, E. F. Nikishin & O. V. Startsev

Authors
  1. G. M. Gunyaev
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  2. M. I. Dushin
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  3. Yu. N. Ivonin
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  4. L. A. Kvacheva
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  5. V. V. Mikhailov
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  6. E. F. Nikishin
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  7. O. V. Startsev
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Additional information

Translated from Mekhanika Kompozitnykh Materialov, No. 2, pp. 211–215, March–April, 1983.

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Gunyaev, G.M., Dushin, M.I., Ivonin, Y.N. et al. Effect of natural exposure in space on the physicomechanical properties of fiberglass. Mech Compos Mater 19, 144–148 (1983). https://doi.org/10.1007/BF00604215

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  • DOI: https://doi.org/10.1007/BF00604215

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