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- Title
Rheology of bitumen modified by EVA - Organoclay nanocomposites.
- Authors
Subramanian Sureshkumar Markanday; Jiri Stastna; Giovanni Polacco; Sara Filippi; Igor Kazatchkov; Ludovit Zanzotto
- Abstract
Ternary systems, bitumenethylenevinyl acetate EVAorganoclay, were prepared by two mixing methods physical mixing and melt blending and then studied in small amplitude oscillations, startup of shear flow and repeated creep and recovery tests. The effect of mixing method and the role of two organoclays on the rheological properties of the studied systems were investigated. Improved thermomechanical properties of bitumenEVAorganoclay nanocomposites, prepared by melt blending, were demonstrated by the low accumulated straincompliance in the repeated creep and recovery tests. Structural differences between the studied systems were reflected in the behavior of the dynamic phase angle, specifically in the shape of the derivative of phase angle w.r.t. the reduced frequency. Similarly, the structural differences between the prepared nanocomposites were reflected by the behavior of the stress growth function ηin the transient experiments. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
- Subjects
BITUMEN; NANOCOMPOSITE materials; CLAY; NONMETALLIC minerals; CAUSTOBIOLITHS
- Publication
Journal of Applied Polymer Science, 2010, Vol 118, Issue 1, p557
- ISSN
0021-8995
- Publication type
Article