https://doi.org/10.1051/epjconf/202532102004
Microwave technology for modification of large-scale structures made of cured polymer composite materials
Yuri Gagarin Saratov State Technical University, Saratov, Russia
* Corresponding author: irinka_7_@mail.ru
Published online: 10 March 2025
An analysis of the results of strengthening modification of cured polymer composite materials in a microwave electromagnetic field has been conducted. It has been demonstrated that the essential factor for achieving the desired effect is a combination of energy flux density and exposure time, ensuring the material is heated to a temperature of 60-80°C. The drawbacks of implementing microwave modification in beam-type chambers with sequentially arranged emitters have been noted. It has been proposed to perform strengthening microwave modification of large-sized products made of polymer composite materials by discretely moving (scanning) a horn emitter across the product surface with a delay at each scanning step. Experimental studies of the temperature field distribution on the irradiated surface have been carried out for various scanning schemes. A rational overlap value of the directional pattern areas with maximum energy flux density at each scanning step has been established at 25%, ensuring uniform heating of the product surface with a spread of no more than ±5°C, which consequently allows for the realization of a uniform distribution of physical and mechanical properties of the modified structure.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
