Danubius International Conferences, 16th International Conference on European Integration - Realities and Perspectives

Mechanical Response of Polyamide PA6 Enhanced with Silicon Carbide Nanoparticles

George Cătălin Cristea, Sorina Ilina, George Pelin, Adriana Stefan, Maria Sonmez
Last modified: 2021-05-12


The polymeric material has gained significant importance in the engineering field due to its useful mechanical and tribological properties, such as specific strength, low weight and a good coefficient of friction, properties with applicability in areas from textile to air transport. Due to their excellent properties, polyamides cover a considerable part of the world market of engineered polymers. In this paper, the combined effect of different weight percentages of silicon carbide nanoparticles (nSiC) reinforcement on the mechanical properties of polyamide (PA6) composite is studied. Test specimens of pure PA6 and PA6 filled with 0.5 wt% and 1wt% nSiC are prepared by homogenization in a Brabender lab mixer follow by mold forming under pressure and temperature. Obtained materials were subjected to mechanical tests (the three-point bending and impact), thermo –mechanical (HDT - heat deflection temperature), tribological tests and analyzed from morpho-structural point of view. The obtained results showed that the resistance of the dopped PA6 increased by 20% and the modulus of elasticity values increase by 15%, compared to the control samples, and hybridization with silicon carbide further enhanced the performance properties, as well as the thermal resistance of the composites. Finally, it can be seen that the dopped PA6 have a lower coefficient of friction at a severe tribological testing regime, compared to the control sample.


Acknowledgments: This work is supported by the project “ANTREPRENORDOC”, in the framework of Human Resources Development Operational Programme 2014-2020, financed from the European Social Fund under the contract number 36355/23.05.2019 HRD OP /380/6/13 – SMIS Code: 123847.