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Le, H. H. ; Osswald, K. ; Ilisch, S. ; Pham, T. ; Stöckelhuber, K.W. ; Heinrich, G. ; Radusch, H. J.
Silica transfer in ternary rubber blends: Calculation and experimental determination

A novel model is presented for predicting the phase selective filler localization in an equilibrium state for ternary rubber blends of SBR, NBR, and NR. It is based on surface tension data of the rubber components and the filler. Phase-selective filler localization in ternary rubber blends is determined experimentally by means of FTIR spectroscopy on the basis of the wetting concept. It is found that by preparation of ternary blends with certain silica loadings, pre-mixed in each blend phase using the masterbatch technology, silica transfer processes between blend phases take place until the equilibrium filler distribution is reached. The sequence of the silica transfer processes can be explained by taking into consideration the formation of a phase-in-phase morphology of the ternary blend.

Quelle
Macromolecular Materials and Engineering 297, 464-473

DOI
http://dx.doi.org/10.1002/mame.201100217

Erschienen am
May 2012
 
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