Abstract
UDC 678.4:539.12.04:620.17
DOI https://doi.org/10.52577/eom.2026.62.3.01
Radiation and thermoradiation treatments are effective physical methods to controll the structure and properties of elastomeric materials without the use of conventional chemical vulcanization systems. This study investigates the effects of the γ-radiation dose, fiber reinforcement, and sensitizing additives on the formation of the spatial network and the performance characteristics of elastomeric composites based on natural rubber and SEP–BNR-type blends. It is shown that increasing the irradiation dose leads to an increase in the gel fraction and crosslink density, accompanied by an improved stiffness, strength, and Mooney viscosity, along with a decrease in plasticity. Reinforcement with carbon fibers and the use of sensitizers enhance the crosslinking efficiency and thermal stability of the materials. Optimal radiation processing conditions have been identified, ensuring a balanced combination of strength and deformation properties of the composites. The obtained results confirm the feasibility of a targeted control of the structure and properties of elastomeric materials through radiation modification methods.
Keywords: radiation vulcanization, thermoradiation treatment, elastomers, γ-radiation, gel fraction, crosslink density, Mooney viscosity, carbon fibers, composites.