Graphene-Enhanced Conductive Filament Compound (PLA/PBAT)

About This Product

This grade is a compound of polylactic acid and polybutylene adipate terephthalate loaded with graphene, supplied as a pellet compound for extrusion into electrically conductive 3D printing filament. PLA provides stiffness and easy printing, PBAT keeps the filament tough enough to spool and feed, and the graphene, a two-dimensional carbon of high aspect ratio, carries the electrical function. Conductive filament lets a printed part carry a circuit, act as a sensor, or dissipate static, without a separate conductive element. Conduction through a filled polymer is a percolation effect: current flows only once the filler forms a continuous network through the insulating matrix, and thin, high aspect ratio platelets reach that point at far lower volume fractions than spherical particles. Graphene therefore provides the conductive network at lower loadings than carbon black, which preserves more of the base polymer's printability. A printed part is not isotropic, though: extrusion aligns the platelets and the layer weld is a poorer contact than the bulk, so volume resistivity depends on loading, print orientation and layer bonding, and conductivity should be characterised on printed specimens rather than taken from the resin figure. Supplied as a raw material for processing on the buyer's own line; we do not produce finished articles. It is used in conductive filament, printed sensors and electrodes, EMI shielding and antistatic parts. Bio Green Chem supplies the graphene-enhanced PLA/PBAT compound to specification on polymer base, graphene loading, pellet form and target resistivity range.