In this work, Ti3AlC2 MAX phase ceramic nanoparticles were prepared and used as new kind of reinforcement for a typical high performance phthalonitrile resin. The synergistic combination of both phases resulted in nanocomposites with improved thermal and mechanical properties. For instance, the thermal conductivity and tensile properties of the neat resin were highly enhanced upon adding more nanofillers contents. Moreover, the phthalonitrile resin toughness was ameliorated by 129 % at the maximum nanoparticles loading of 15 vol.%. The experimental investigations were also compared with predictions from Series, Halpin-Tsai and Kerner models and a full discussion was provided. A high resolution TEM confirmed the ability of the MAX phase to create a conductive network, especially at high nanofillers amounts. SEM analyses of the tensile fractured surfaces revealed positive changes in the morphology, such as an increase in the roughness and amount of hackling as well as the formation of multiple micro-cracks. The MAX phase also enhanced the thermal stability, stiffness and glass transition temperature of the neat resin. This work confirms the superiority of the MAX phase ceramics over the traditional ones in enhancing the properties of the phthalonitrile resin and opens the way for further research in the field.

High performance polymeric nanocomposites from phthalonitrile resin and silane surface modified Ti3AlC2 MAX phase nanoparticles

255th National Meeting (2018)

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