Effect of carbon black on electrical and rheological properties of graphite nanoplatelets/poly(ethylene-butyl acrylate) composites
Artikel i vetenskaplig tidskrift, 2015

© BME-PT. The effect of adding carbon black on the electrical and rheological properties of graphite nanoplatelets/poly(ethylene- butyl acrylate) copolymer composites produced via melt or solution mixing was studied. By adding a small amount of low- or high-structured carbon black to the nanocomposite, the electrical percolation threshold decreased and the final conductivity (at higher filler contents) increased. The effect on the percolation threshold was significantly stronger in case of the high-structured carbon black where replacing 10 wt% of the total filler content with carbon black instead of graphite nanoplatelets reduced the electrical percolation threshold from 6.9 to 4.6 vol%. Finally, the solution mixing process was found to be more efficient leading to a lower percolation threshold. For the composites containing high-structured carbon black, graphite nanoplatelets and their hybrids there was a quite reasonable correlation between the electrical and rheological percolation thresholds.

rheology

electrical properties

melt mixing

nanocomposites

Författare

Henrik Oxfall

Chalmers, Material- och tillverkningsteknik, Polymera material och kompositer

Giampaolo Ariu

Chalmers, Material- och tillverkningsteknik, Polymera material och kompositer

Thomas Gkourmpis

Borealis AB

Rodney Rychwalski

Chalmers, Material- och tillverkningsteknik, Polymera material och kompositer

Mikael Rigdahl

Chalmers, Material- och tillverkningsteknik, Polymera material och kompositer

Express Polymer Letters

1788-618X (ISSN)

Vol. 9 1 66-76

Drivkrafter

Hållbar utveckling

Styrkeområden

Nanovetenskap och nanoteknik

Materialvetenskap

Ämneskategorier

Kompositmaterial och -teknik

DOI

10.3144/expresspolymlett.2015.7