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Some features of the structure of oriented polyethylene terephthalate yarns in the initial period of heat treatment

  • Chemistry And Technology Of Man-Made Fibres
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Fibre Chemistry Aims and scope

Conclusions

The rearrangement in structure of PET yarn during short heat treatment times, that is, during the warming-up period and in the initial period of yarn heat treatment, has been examined from the evidence of isometric heating, IR spectroscopy, change in birefringence, density, and physicomechanical characteristics of yarn which has been heat treated in an air heating chamber at 200°C.

It has been shown that during the time of warming up the yarn, structural changes are determined by relaxation processes. After heating, crystallization processes exert an important effect on the properties of the heat treated yarn. The complex character of the structural rearrangement leads to a nonhomogeneous change in physicomechanical properties of the yarn.

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Authors
  1. S. L. Pakshver
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  2. S. A. Baranova
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  3. É. M. Aizenshtein
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  4. L. S. Gerasimova
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  5. S. S. Aleksandriiskii
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Additional information

Translated from Khimicheskie Volokna, No. 2, pp. 37–39, March–April, 1984.

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Pakshver, S.L., Baranova, S.A., Aizenshtein, É.M. et al. Some features of the structure of oriented polyethylene terephthalate yarns in the initial period of heat treatment. Fibre Chem 16, 96–99 (1984). https://doi.org/10.1007/BF00555879

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  • DOI: https://doi.org/10.1007/BF00555879

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