Mechanical properties, morphology and thermal conductivity of polyamide composites filled with graphene nanoplatelets, Al₂O₃and graphite

Abstract

In this work, PA6/PA66/GNP thermal composites were prepared via a melt blending method. Mechanical properties, morphology and thermal properties of PA6/PA66/GNP composites were investigated. The thermal conductivity of composite containing 50 wt-% of graphene nanoplatelets was measured as 5·03 W m -1 K -1 at 30°C. When the Al 2 O 3 was replaced for graphene nanoplatelets, the thermal conductivity of composites decreased, but the mechanical properties improved. The optimum amount of Al 2 O 3 which replaced graphene nanoplatelets is 10%. When graphite was used to replace for graphene nanoplatelets, thermal conductivity basically remained unchanged but mechanical properties decreased.

Study of mechanical and tribological properties of nylon 66‐titanium dioxide microcomposite

“…Polyamide‐66/CaCO 3 micro and nanocomposites were investigated, and the results showed that incorporation of CaCO 3 particles increased the modulus and tensile strength of neat PA66, however, decreased its yield and elongation at break . Research by other authors by adding SiO 2 , graphene, Al 2 O 3 , graphite, carbon fiber, wollastonite, glass beads, and carbon black fillers revealed the improvement in mechanical and tribological properties …”

Influence of glass fibers and rubber particles on the viscoelastic behavior of polyamide 6,6 blended composites

“…Polyamides are a class of thermoplastic materials with excellent mechanical strength with many types displaying resistance to high temperatures . Commercially, there are many types of polyamides available, with the most common being polyamide 6 (PA6), and polyamide 6,6 (PA66).…”

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Preparation and Characterization of CuS-Graphene Composite

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