Open AccessОпределение модулей упругости третьего порядка в образцах полистирола, изготовленных по разным технологиям
Author(s) -
А.В. Белашов,
А.А. Жихорева,
Я.М. Бельтюков,
О.А. Москалюк,
И.В. Семенова
Publication year - 2021
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2021.08.51094.22-21
Subject(s) - materials science , ultrasonic sensor , elastic modulus , composite material , copolymer , polystyrene , polymer , styrene , ethylene glycol , acoustics , chemistry , organic chemistry , physics
An ultrasonic method was applied in this work to measure third-order elastic moduli of polystyrene samples fabricated using different technologies: two commercial samples of a styrene copolymer with ethylene glycol dimethacrylate in different concentrations and two laboratory samples obtained by melt technology in different temperature regimes. It is shown that the dependences of nonlinear elastic moduli on the frequency of ultrasonic waves in the range of 1-3 MHz differ significantly between commercial copolymer samples and laboratory samples. The moduli of laboratory samples obtained using the same technology, but in different temperature regimes, also differ markedly. Thus, the manufacturing technology can affect significantly the nonlinear elastic properties of polymer materials.