Premium
Influence of filler structure on microhardness of carbon black–polymer composites
Author(s) -
Flores A.,
Cagiao M. E.,
Ezquerra T. A.,
Baltá Calleja F. J.
Publication year - 2000
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/1097-4628(20010103)79:1<90::aid-app110>3.0.co;2-f
Subject(s) - carbon black , composite material , materials science , indentation hardness , filler (materials) , polycarbonate , polyethylene , composite number , carbon fibers , polymer , particle (ecology) , microstructure , natural rubber , oceanography , geology
The microhardness, H, of carbon black–polycarbonate and carbon black–low‐density polyethylene composites was investigated. Two types of microadditives with different average particle sizes were employed. It has been shown that the morphology of the polymeric matrix conspicuously influences the hardness dependence of the composites with volume concentration of filler, ϕ. The microhardness of the carbon black–polycarbonate composites shows a steplike behavior with respect to carbon black content, while the H value of the carbon black–low‐density polyethylene composite linearly increases with increasing ϕ. The influence of filler structure on the microhardness of the carbon black–polymer composites is also discussed. Results favor the concept that a smaller carbon black particle size (smaller aggregate diameters and interaggregate distances) enhances the microhardness of the composites. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 79: 90–95, 2001