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Title: | Rheological behaviour of fiber-filled polymer melts at low shear rate - Part II. Experimental investigation | ||||||||||
Author: | Hausnerová, Berenika; Honková, Natálie; Lengálová, Anežka; Kitano, Takeshi; Sáha, Petr | ||||||||||
Document type: | Peer-reviewed article (English) | ||||||||||
Source document: | Polimery. 2008, vol. 53, issue 9, p. 649-656 | ||||||||||
ISSN: | 0032-2725 (Sherpa/RoMEO, JCR) | ||||||||||
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Abstract: | In this study, rheological properties of carbon fiber-filled polypropylene and polyethylene melts at low shear rate were measured using a cone-plate rheometer. The melts with high fiber loading show complex shear flow depending on the fiber concentration, its length and length distribution, as well as on shear rate and matrix characteristics. The existence of yield stress and time-dependent or shear-strain-dependent properties are also discussed and compared with previous results. The shear flow in the narrow gap of cone-plate rheometer influences the fiber assembly. However, the effect of low shear rate on the structure of fiber assembly is negligible. | ||||||||||
Full text: | http://www.ichp.pl/polimery-hausnerova-honkova-lengalova-kitano-saha | ||||||||||
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