The Effect of 3-Aminopropyltriethoxysilane Modified Graphene Nanoparticles on the Mechanical Properties of Polydimethylsiloxane

This research investigates the impact of incorporating 3-aminopropyltriethoxysilane-modified graphene nanoparticles into a polydimethylsiloxane matrix at compositions of 1%, 3%, and 5% on the mechanical properties of the resulting composites. As a silicone polymer with unique characteristics, polydimethylsiloxane plays a significant role in various industries, including electronics and polymer engineering. This polymer exhibits notable traits such as high-temperature resistance, flexibility, and excellent electrical insulation.
The utilization of nanomaterials as integral components in nanocomposites has resulted in significant improvements in diverse material properties. The synergistic combination of graphene nanoparticles with polymer matrices, particularly silicone polymers, presents an effective approach for enhancing both mechanical and thermal properties.
While polydimethylsiloxane possesses desirable attributes such as temperature resistance and flexibility, the addition of reinforcing nanomaterials is essential for further improving its mechanical properties. In this study, we added graphene nanoparticles modified with 3-aminopropyltriethoxysilane to the polydimethylsiloxane matrix and evaluated the effect of this additive on the mechanical properties of the nanocomposite.
Characterization of the final composite was conducted using FT-IR, FE-SEM, RAMAN, TGA, and XRD analyses. The results confirmed the successful synthesis of graphene oxide and demonstrated the effective physical and chemical bonding of 3-aminopropyltriethoxysilane to the surface of graphene oxide sheets.
The primary objective of this research is to develop an efficient method for enhancing the mechanical properties of polydimethylsiloxane through the use of modified graphene nanoparticles, thereby providing a solid scientific foundation for improving the performance of silicone materials in engineering and industrial applications.