TBU Publications
Repository of TBU Publications

Dynamic viscoelastic properties of long organic fibre reinforced polypropylene in molten state

DSpace Repository

Show simple item record

dc.title Dynamic viscoelastic properties of long organic fibre reinforced polypropylene in molten state en
dc.contributor.author Hausnerová, Berenika
dc.contributor.author Nagatsuka, Y.
dc.contributor.author Nishitani, Yosuke
dc.contributor.author Sekiguchi, Isamu
dc.contributor.author Kitano, Takeshi
dc.relation.ispartof Polymers and Polymer Composites
dc.identifier.issn 0967-3911 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2001
utb.relation.volume 9
utb.relation.issue 3
dc.citation.spage 199
dc.citation.epage 211
dc.type article
dc.language.iso en
dc.publisher Institute of Electrical and Electronics Engineers (IEEE) en
dc.subject termoplastické kompozity cs
dc.subject thermoplastic composites en
dc.subject rheological properties en
dc.subject fiber en
dc.subject melts en
dc.subject orientation en
dc.description.abstract This paper deals with the dynamic viscoelastic properties of long organic fibre [aramid fibre (KF), polyvinyl alcohol fibre (VF) and polyamide fibre (PA6)) reinforced polypropylene in the molten state. Long organic fibres mixed with polypropylene fibres by an apparatus called a "fibre separating and flying machine" were compression moulded into 3mm thick composites. Dynamic viscoelastic properties of these composites were measured in the molten state using a rotational parallel plate rheometer. It was found that the dependence of angular frequency on storage modulus, G', for long organic fibre reinforced polypropylene is different from that of volume fraction of fibre, Vf and the relationships depend on the characteristics of the reinforcing organic fibres. The slope of the dynamic viscosity, eta' vs. angular frequency, omega curves increases gradually up to 45 degrees with increasing V-f. Influence of fibre content on dynamic viscoelastic properties depends on the organic fibre used. For low fibre content, G' increases with increasing V-f in the same way as eta', However, the opposite trend is observed for high fibre content composites. It can be deduced that there is an apparent yield from the relations between complex viscosity, eta* and complex modulus, G*. The yield value, G*y increases gradually with increasing fibre content and approaches a fixed value. All of the long organic fibre reinforced polypropylenes studied here are more sensitive to temperature than inorganic fibre reinforced composites. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1000032
utb.identifier.rivid RIV/70883521:28110/01:63500231
utb.identifier.obdid 11051821
utb.identifier.scopus 2-s2.0-0035739893
utb.identifier.wok 000169390400006
utb.source j-riv
utb.contributor.internalauthor Hausnerová, Berenika
Find Full text

Files in this item

Show simple item record