Effect of Multi-Sized Graphite Filler on the Mechanical Properties and Electrical Conductivity

This research successfully fabricated conductive polymer composites (CPCs) prepared using multiple sizes of graphite filler (40, 100, 150, and 200 µm) that provided excellent network formation within the fillers polypropylene matrix which further improved both electrical conductivity flexural strength. An important discussion on fabrication technique, including compression moulding injection was conducted, to manufacture CPC materials with a thickness less than 3 mm. The findings this study suggested fabricating CPCs technique composition 75 wt. % exhibited better connectivity as increased 15 Scm-1. Also, compared three (40/100/200 it resulted in 13 Scm-1, two (40/200 reporting at demonstrated addition not necessarily due agglomeration occurring. resultant 40/200 µm possessed more stable structure having thin composite layer (2.5 mm) promoted suitable for bipolar plate used proton exchange membrane fuel cells.