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Morphology and Physicomechanical Properties of Modified Polyamides

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We study the influence of high-molecular weight modifier, i.e., polyvinylpyrrolidone (PVP), on the morphology of polyamide-6. The data of instrumental investigation reveal changes in the degree of crystallinity and phase transitions in polyamide-6. Thus, in particular, the obtained materials have a degree of crystallinity higher by 5–7%. We study the physical and mechanical properties of the obtained mixtures. It is shown that the addition of PVP to polyamide contributes to an increase in relative elongation in tension and in the yield strength, as well as in the Vicat softening point. At the same time, we observe a weak decrease in the modulus of elasticity and surface hardness of the obtained materials, as well as an increase in the mechanical loss tangent.

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Authors and Affiliations

  1. Lviv Polytechnic National University, Lviv, Ukraine

    A. S. Masiuk, V. Ye. Levytskyi, T. V. Humenetskyi & L. M. Bilyi

  2. Karpenko Physicomechanical Institute, National Academy of Sciences of Ukraine, Lviv, Ukraine

    L. M. Bilyi

Authors
  1. A. S. Masiuk
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  2. V. Ye. Levytskyi
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  3. T. V. Humenetskyi
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  4. L. M. Bilyi
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Correspondence to L. M. Bilyi.

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Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 58, No. 1, pp. 132–138, January–February, 2022.

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Masiuk, A.S., Levytskyi, V.Y., Humenetskyi, T.V. et al. Morphology and Physicomechanical Properties of Modified Polyamides. Mater Sci 58, 141–147 (2022). https://doi.org/10.1007/s11003-022-00642-6

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