Selected electrical and thermal properties of polylactide/graphite composites (in English)
Polimery 2011, No 6, 489
The influence of graphite on volume and surface resistivity as well as on some thermal properties of composites containing a polylactide matrix was studied. The graphite content was up to 50 wt. %. It was found that the volume and surface resistivity decreased with the increasing graphite content and the percolation threshold appeared at the level of the filler content of 30—40 wt. %. No essential influence of graphite on phase transition temperatures was observed. However, the phenomenon of cold crystallization appeared. The sample mass loss upon heating started at ca. 270 °C.
Key words: polylactide/graphite composites, electrical properties, phase transition temperature of polymer matrix, thermal stability