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Title
Influence of process parameters on mechanical properties of physically foamed, fiber reinforced polypropylene parts
AuthorKastner, Clemens ; Steinbichler, Georg ; Kahlen, Susanne ; Jerabek, Michael
Published in
Journal of Applied Polymer Science, 2018, Vol. 136, Issue 14
PublishedWiley, 2018
LanguageEnglish
Document typeJournal Article
ISSN1097-4628
URNurn:nbn:at:at-ubl:3-831 Persistent Identifier (URN)
DOI10.1002/app.47275 
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 The work is publicly available
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Influence of process parameters on mechanical properties of physically foamed, fiber reinforced polypropylene parts [2.64 mb]
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Abstract (English)

Due to the high complexity of the foaming technology, the relationship between processing and final properties of parts produced is not completely understood. Investigating the causality chain ProcessingMorphologyProperties is of great importance, especially for the automotive industry, in order to be able to tailor the mechanical properties of foamed parts. This article examines and qualifies the effects of seven process parameters (melt/mold temperature, degree of foaming, injection speed, delay time, gas content, and back pressure) on biaxial bending and flexural behaviorthe predominant deformation mechanisms in interior automotive applicationsof foamed plaques, using the MuCell process. The results clearly show that three major factors (mold temperature, degree of foaming, and delay time) have significant impact on the mechanical properties of the foamed parts. For a clear understanding of these interactions, computed tomography scans of certain plaques are correlated to process parameters and mechanical performance. This article should forge a bridge between production and performance.

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CC-BY-License (4.0)Creative Commons Attribution 4.0 International License