Akademik Veri Yönetim Sistemi
Reaction Kinetics, Mechanisms and Catalysis, 2026 (SCI-Expanded, Scopus)
In this research work, the effect of zinc sulfide nanoparticles (ZnS NPs) on the thermal decomposition behavior, kinetics, and thermodynamics of carbon black (CB)-containing composites based on phosphorylated butadiene rubber (PhBR) was investigated in detail. ZnS NPs were synthesized on the CB-PhBR matrix by the Successive Ionic Layer Adsorption and Reaction (SILAR) method, and the thermal properties of the obtained nanocomposites were evaluated by thermogravimetric analysis. The results showed that the thermal decomposition of both CB-PhBR and ZnS NPs/CB-PhBR composites occurs in three steps. The addition of ZnS NPs has a catalytic effect in the second step of decomposition, reducing the activation energy and the thermal energy required for the process, thereby accelerating the decomposition. Kinetic calculations performed using the Coats–Redfern method indicated that the model functions F1.5 and D5 primarily describe the reaction mechanism in the second step, and ZnS NPs reduce the energy barrier without changing the reaction mechanism. In the third step, ZnS NPs play a structural and barrier role rather than a catalytic one, leading to an increase in activation energy and a dominance of the diffusion-limited mechanism. Thermodynamic analysis results confirm that the decomposition process involving ZnS NPs is less energy-intensive and more thermodynamically favorable.