Thermal conductivity of polyamide composites contained microwave assisted expanded graphite

Polyamide /microwave assisted expanded graphite nanocomposites prepared via melt mixing and their thermal conductivity compared with in-situ processed nanocomposites. Three dimensional conductive pathways formed in all compositions. Thermal conductivity enhanced with filler loading increment and higher values obtained for in-situ processed nanocomposites as a result of preserving larger sizes of partially exfoliated and intercalated graphite intercalated compounds. As well, thermal conductivity of nanocomposites based on PA6 was higher in comparison with those based on PA12 at the same filler volume fractions and it showed more than 8 times enhancement at 20 vol% of graphite intercalated compound filler.

کلیدواژه ها:

Microwave expanded graphite ، thermal conductivity ، polyamide ، nanocomposites