期刊
EUROPEAN POLYMER JOURNAL
卷 46, 期 4, 页码 621-633出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2009.12.024
关键词
Polymer-modified asphalt; EVA/organoclay; Nanocomposites; Rheology
资金
- Natural Sciences and Engineering Research Council of Canada
- Husky Energy Inc.
The effect of the addition of two different organoclays as a third component in polymer-modified asphalts has been investigated. Ternary mixtures were prepared by adding clay and poly(ethylene-co-vinyl acetate) to the asphalt, either separately, or in the form of a premixed master batch. The performed characterizations allowed the determination of how the two methods of mixing influence the interactions between asphalt and polymer and therefore the final theological properties. In particular, it was shown that the clay had a compatibilizing effect on asphalt and polymer and that a high compatibility between clay and polymer led to a better dispersion of the polymer in the asphalt, thus influencing the final rheological properties of the studied systems. (C) 2010 Elsevier Ltd. All rights reserved.
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