The inclusion of graphene nanoplatelet on the mechanical, thermal, and electrical characteristics of polycarbonate

In electrical devices, mechanical characteristics are greatly required. In this study, graphene nanoplatelets were used to provide meaningfully enhanced electrical conductivity, dielectric constant, and mechanical properties in a polycarbonate (PC) matrix (GNP). This research supports a practical, cost-effective method for manufacturing dielectric, thermally stable polymer composites with superior mechanical properties. A thermogravimetric study was conducted on PC and PC/GNP composites in nitrogen and air atmospheres. In the presence of nitrogen, polycarbonate decomposed in a one-step manner, but in the presence of air, three-step deterioration was observed. Furthermore, pure graphene nanoplatelets degraded in three steps in air, associated with a moderate deterioration in N-2, as received. The inclusion of platelet-like graphene aided to produce a physical hindrance outcome, postponing the release of volatile chemicals created throughout breakdown, which enhanced the thermal strength of the composites. Polycarbonate/graphene nanocomposites' dielectric and electromagnetic interference (EMI) shielding characteristics were studied like a variable of composite shape and graphene particle size. The EMI shielding efficacy of polycarbonate content with 0.5wt% graphene was shown to be dependent on the composite shape and graphene content. Furthermore, the relative permittivity was seen to be increasing. The findings show that graphene-loaded polymers improve the functionality of electrical appliances, indicating that these materials could be used in electronic applications. The research demonstrates that adding GNP to a material may improve several characteristics while also making it lightweight and appropriate for a variety of applications.

Automated summary

This study focuses on enhancing the electrical conductivity, dielectric constant, and mechanical properties of a polycarbonate matrix by using graphene nanoplatelets. The inclusion of platelet-like graphene aids in improving the thermal strength of the composites and shows potential for electronic applications. Additionally, the shape and graphene content of the composite affect its EMI shielding efficacy and relative permittivity.