Poly-ethylene terephthalate (PET) and rubber interactions lead to unstable morphology and poor interfacial adhesion, resulting in inferior mechanical properties of the PET-rubber composites. The mechanical behaviour of PET-rubber composites with additives like TiO₂ nanoparticles as compatibilizer (<5% wt) are been studied in the present work.

PET-rubber composites were kept under visible light and UV irradiation. The interface properties of the composites with TiO₂ nanoparticles were explained by mechanical tests. The measurements of the tensile strain, shear and compression were performed on a Zwick test System and the impact tests (Charpy tests) were made using an Impact Plast instrument. The Finite Element Method (FEM) was applied using patran/nastran software, and the experimental results were used as input data.

Mechanical properties were found to be affected by the conditioning temperatures of the composites as well as the type of the additives.

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