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Production of Highly Loaded Nanocomposites by Dispersing Nanoparticles in Epoxy Resin
Author(s) -
Nolte H.,
Schilde C.,
Kwade A.
Publication year - 2010
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201000096
Subject(s) - epoxy , materials science , suspension (topology) , composite material , dispersion (optics) , nanoparticle , nanocomposite , particle (ecology) , dispersant , dispersion stability , particle size , mass fraction , chemical engineering , viscosity , particle size distribution , mixing (physics) , matrix (chemical analysis) , polymer , nanotechnology , oceanography , physics , mathematics , engineering , quantum mechanics , homotopy , geology , pure mathematics , optics
Abstract The objective of this study was the investigation of techniques for dispersing alumina nanoparticles with different surface modifications in epoxy resin. In order to prepare the matrix suspension, high contents of fillers (up to 50 wt %) were dispersed by conducting shear mixing techniques in a high performance laboratory kneader. The intention was to attain solutions that were stable against re‐agglomeration, while the mass fraction and the product fineness were maintained as high as possible. Therefore, both the formulations and the dispersion parameters were varied systematically. An epoxy resin was used as a carrier fluid and a corresponding amine hardener system was chosen. Tests were performed using alumina particles and surface modified alumina particles at different particle concentrations. Furthermore, the effect of diluting the colloidal suspensions and the resulting long term stability were also examined. The matrix suspension was examined with respect to viscosity, stability and particle size distribution.