Conclusions
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1.
It is determined experimentally that in radiative structurization of the PN-1 binder, with the exception of the fraction contributed by thermal shrinkage, linear shrinkage after the formation of gel-like structure in the binder is independent of the exposure rate within the range from 21.8 to 184 rad/sec.
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2.
Radiative structurization makes it possible to limit shrinkage to 2.1% when the process is isothermic, whereas in thermochemical solidification, shrinkage can be limited only to 4.4% by removing the exothermic temperature peak.
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3.
The amount of heat released in the course of radiative structurization can be determined approximately from the temperature curves of the solidification process and the cooling of the sample after solidification.
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Literature Cited
Yu. M. Malinskii, B. Yu. Trifel', and V. A. Kargin, “Influence of some physicochemical properties of the binder and filler on the strength of a glass plastic,” Vysokomolekulyarnye Soedineniya, No. 9 (1964).
S. I. Omel'chenko et al., “Physicomechanical properties of the polyglycol maleinate binder PN-1 structurized under the action of γ-radiation,” Mekhanika Polimerov, No. 3 (1967).
G. N. P'yankov, M. A. Brashkin, and N. R. Kulyupina, “High-power facility for γ-irradiation-UK 70,000”, Atomnaya Energiya,19, No. 1 (1965).
H. V. Boenig and N. Walker, “Shrinkage of glass-reinforced polyesters”, Modern Plastics,38, No. 6 (1961).
Additional information
Institute of Mechanics, Academy of Sciences of the Ukrainian SSR, Kiev. Translated from Prikladnaya Mekhanika, Vol. 5, No. 1, pp. 28–32, January, 1969.
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Shishkin, P.G. Shrinkage and heat release of a binder structurized under the influence of γ-radiation. Soviet Applied Mechanics 5, 22–25 (1969). https://doi.org/10.1007/BF00886906
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DOI: https://doi.org/10.1007/BF00886906