Conclusions
The mean deformation rate rather fully characterizes the kinematics of polypropylene fiber stretching. It can be used as a norming parameter to obtain generalized temperature-rate characteristics of this process.
The degree of orientation in stretching polypropylene fibers, like that for previously studied polymers, is determined by the magnitude of the accumulated highly elastic deformation.
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Literature cited
V. P. Napasnikov, B. V. Radushkevich, and V. D. Fikhman, Khim. Volokna, No. 3, 45–46 (1977).
V. D. Fikhman, B. V. Radushkevich, and V. P. Napasnikov, Khim. Volokna, No. 4, 21–24 (1979).
V. D. Fikhman, V. P. Napasnikov, and B. V. Radushkevich, Khim. Volokna, No. 3 (1983).
Additional information
Translated from Khimicheskie Volokna, No. 4, pp. 24–25, July–August, 1983.
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Fikhman, V.D., Napasnikov, V.P. & Radushkevich, B.V. Dependence of the orientation strengthening of polypropylene fibers on temperature and rate of deformation. Fibre Chem 15, 266–268 (1984). https://doi.org/10.1007/BF00548306
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DOI: https://doi.org/10.1007/BF00548306