Microwave technology for modification of large-scale structures made of cured polymer composite materials
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, ensuri...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2025-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2025/06/epjconf_apitech-vii2025_02004.pdf |
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| Summary: | 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. |
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| ISSN: | 2100-014X |