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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Filling Behavior of Wood Plastic Composites
Author(s)
Ivica Duretek, Thomas Lucyshyn and Clemens Holzer
Full-Text PDF
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DOI:10.17265/1934-7359/2016.11.005
Affiliation(s)
Department of Polymer Engineering and Science, Montanuniversitaet Leoben, Leoben 8700, Austria
ABSTRACT
WPC
(wood plastic composites) are a young generation of
composites with rapidly growing usage within the plastics industry. The
advantages are the availability and low price of the wood particles, the
possibility of partially substituting the polymer in the mixture and
sustainable use of the earth's resources. The current WPC products on the
market are to a large extent limited to extruded products. Nowadays,
there is a great interest in the market for consumer products in more use of
WPC as an alternative to pure thermoplastics in injection molding processes. This
work presents the results of numerical simulation and experimental
visualization of the mold filling process in injection molding of WPC. The 3D
injection molding simulations were done with the commercial software package
Autodesk® Moldflow® Insight 2016 (AMI). The mold filling
experiments were conducted with a box-shaped test part. In contrast to unfilled
polymers, the WPC has reduced melt elasticity so that the
fountain flow often does not develop. This results in irregular flow front
shapes in the molded part, especially at high filler content.
KEYWORDS
Wood plastic composites, injection molding, simulation, process, mold.
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