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Flow induced fiber orientation in compression molded glass mat thermoplastics
Luleå tekniska universitet.
Volvo Car Components Corporation Body Component Division SE-293 80 Olofström.
Swerea SICOMP AB, Box 271, 941 26, Piteå.
2000 (Swedish)In: Polymer Composites, ISSN 0272-8397, E-ISSN 1548-0569, Vol. 21, no 6, p. 1007-1013Article in journal (Refereed) Published
Abstract [en]

This study examines how the mechanical properties in GMT are affected by axisymmetric flow during compression molding. Two types of GMT with different architecture are used, swirled mat and short fiber GMT. Tree different grades are tested for each fiber architecture 20, 30, and 40% fiber content by weight. These are in principle the grades of GMT commercially available today. It is found that the flow reduced the tensile strength by 30 to 50% and the tensile modulus up to 30% in the flow direction. The reduction in mechanical properties, which is mainly caused by flow-induced fiber orientation, is larger at high fiber contents. The study also showed that there is no major difference in behavior between swirled mat and short fiber GMT regarding flow induced fiber orientation.

Place, publisher, year, edition, pages
2000. Vol. 21, no 6, p. 1007-1013
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-8445DOI: 10.1002/pc.10254ISI: 000168210500015Scopus ID: 2-s2.0-0034487887Local ID: 6f4d4c30-59ab-11de-9f57-000ea68e967bOAI: oai:DiVA.org:ltu-8445DiVA, id: diva2:981383
Note
Validerad; 2000; 20090615 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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