The role of interfacial interactions on the functional properties of ethylene–propylene copolymer containing SiO2 nanoparticles

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Abstract

In this paper, the mechanical properties, thermal stability, and transparency of ethylene– propylene copolymer (EPC) elastomer modified with various weight percentages (1, 3, and 5 wt.%) of SiO2 nanofillers have been studied. The nanocomposites were prepared via a simple melt mixing method. The morphological results revealed that the nanofillers were uniformly dispersed in the elastomer, where a low concentration of SiO2 (1 wt.%) had been added into the elastomer. The FTIR showed that there are interfacial interactions between EPC matrix and silanol groups of SiO2 nanoparticles. Moreover, by the addition of 1 wt.% of SiO2 in the EPC, the tensile strength and elongation at break of EPC increased by about 38% and 27%, respectively. Finally, all samples were optically transparent, and the transparency of the nanocomposites reduced by increasing the content of SiO2 nanoparticles.

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Taraghi, I., Paszkiewicz, S., Irska, I., Pypeć, K., & Piesowicz, E. (2020). The role of interfacial interactions on the functional properties of ethylene–propylene copolymer containing SiO2 nanoparticles. Polymers, 12(10), 1–10. https://doi.org/10.3390/polym12102308

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