Physico-mechanical characteristics of nanocomposite materials based on fluoroplastic

Автор(и)

  • С. Л. Рево Київський нацiональний унiверситет iменi Тараса Шевченка https://orcid.org/0000-0002-1881-1472
  • Т. Г. Авраменко Київський нацiональний унiверситет iменi Тараса Шевченка https://orcid.org/0000-0001-9300-6740
  • М. М. Мельниченко Київський нацiональний унiверситет iменi Тараса Шевченка
  • К. О. Іваненко Київський нацiональний унiверситет iменi Тараса Шевченка https://orcid.org/0000-0002-5637-9633

DOI:

https://doi.org/10.17721/1812-5409.2021/3.20

Ключові слова:

нанокомпозиційний матеріал, мікротвердість, політрифторхлоретилен, розширений графіт

Анотація

In this work, the elastic and strength properties of polymer composites with a polytrifluorochlorethylene matrix and a thermally expanded graphite filler were evaluated by the nanoindentation method, and the effect of the dispersion and concentration of the filler on the mechanical characteristics of nanocomposite materials was considered. It is shown that the microhardness of nanocomposite materials decreases with increasing filler concentration. An increase in the microhardness and Young's modulus with the growth of filler particles was observed for nanocomposite materials with a filler concentration of 3 vol.%. As for nanocomposite materials with a filler volume fraction of 10 vol.%, similar behavior of the mechanical characteristics was observed with an increase in the dispersion of thermally expanded graphite particles to 180 ?m. A subsequent increase in the average particle size of thermally expanded graphite leads to a decrease in Young's modulus and microhardness of composites, which may be associated with different degrees of polymer structuring and the formation of different orientational orders from the filler. The observed changes in Young's modulus and H/E ratio indicate a change in the amorphous crystalline behavior of the composite to that characteristic of fine-crystalline materials and depends on the dispersion of thermally expanded graphite.

Pages of the article in the issue: 107 - 110

Language of the article: Ukrainian

Посилання

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Завантаження

Опубліковано

07.12.2021

Номер

Розділ

Диференціальні рівняння, математична фізика та механіка

Як цитувати

Рево, С. Л., Авраменко, Т. Г., Мельниченко, М. М., & Іваненко, К. О. (2021). Physico-mechanical characteristics of nanocomposite materials based on fluoroplastic. Вісник Київського національного університету імені Тараса Шевченка. Фізико-математичні науки, 3, 107-110. https://doi.org/10.17721/1812-5409.2021/3.20