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<p>The paper studies heat-transfer properties and structural bonds of cured polymer composites modified by the microwave electromagnetic field. Raman spectroscopy shows the dependence of carbon fiber and fiber glass spectral intensity on the microwave radiation and the significant difference of these spectra from those of reference samples at certain microwave radiation parameters. In general, Raman spectroscopy of reference and test carbon fiber and fiber glass samples demonstrates the growth in the spectral line intensity for the main functional groups of the cured epoxy matrix and the formation of additional bonds due to the heat and wave processes accompanying the microwave effect that can improve the strength of polymer composites due to the better matrix-filler interaction as well as a&#xa0;cohesive interaction in the matrix.</p>

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Microwave effect on Raman spectra of cured polymer composites

  • 期刊论文

  • 发表日期：

    2025年10月1日

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  • I. V. Zlobina,
  • D. N. Bratashov,
  • G. K. Muldasheva,
  • N. V. Bekrenev,
  • D. O. Churikov

摘要

The paper studies heat-transfer properties and structural bonds of cured polymer composites modified by the microwave electromagnetic field. Raman spectroscopy shows the dependence of carbon fiber and fiber glass spectral intensity on the microwave radiation and the significant difference of these spectra from those of reference samples at certain microwave radiation parameters. In general, Raman spectroscopy of reference and test carbon fiber and fiber glass samples demonstrates the growth in the spectral line intensity for the main functional groups of the cured epoxy matrix and the formation of additional bonds due to the heat and wave processes accompanying the microwave effect that can improve the strength of polymer composites due to the better matrix-filler interaction as well as a cohesive interaction in the matrix.