Influence of Controlled Radiation on the Properties of Biocompatible Silicone Elastomers
2024
Cvjetković, Jovana | Manjenčić, Darko | Mićić, Vladan | Manjenčić, Anja
For everyone involved in the synthesis, processing and application of elastomers, it is necessary to know how an elastomeric material will behave under the influence of different types of energy. The aim of this work is to establish the resistance of biocompatible silicone elastomers to the permitted doses of radiation. Elastomeric materials were irradiated with gamma rays in a Co-60 radiation chamber with a dose of 25 kGy/h. By determining the various properties before and after irradiation of the silicone material, it was found that the resistance to radiation is significantly improved in samples reinforced with silicon (IV) oxide nanoparticles. FTIR spectroscopy was used to confirm the assumed mechanism of the crosslinking reaction of siloxane. The analysis of the thermal properties of the synthesized siloxane materials was performed using a DSC device, which showed that the proportion of nanofillers and vinyl functional groups significantly affects the values of the melting temperatures before and after irradiation.
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Editeur University of Kragujevac, Faculty of Agronomy, Čačak (Serbia)
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