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Conducting injection moulded carbon black filled polyethylene
Author(s) -
Baltá calleja F. J.,
Bayer R. K.,
Ezquerra T. A.,
Salazar Martinez J.,
Zachmann H. G.
Publication year - 1988
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19880200158
Subject(s) - carbon black , agglomerate , materials science , composite material , polyethylene , carbon fibers , conductivity , compression (physics) , mixing (physics) , melt flow index , ultra high molecular weight polyethylene , polymer chemistry , polymer , composite number , chemistry , physics , quantum mechanics , copolymer , natural rubber
Carbon black filled polyethylenes were prepared by injection moulding using a mould which induces elongational flow. In case of high molecular weight matrices, a microadditive segregation within the material leads to conductivity values σ ≈ 10 −1 ω −1 cm −1 which are much larger than those obtained for the compression moulded material. The use of lower molecular weight matrices leads to lower conductivity levels. This is attributed to a less pronounced destruction of carbon black agglomerates during the mixing process and to an orientation effect of these particles by injection flow.