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Mechanisms Controlling Particle Distribution in Infusion Molded Composites

SICOMP AB, P.O. Box 271 SE-941 26 Pitea°, Sweden; Patrik.Fernberg{at}sicomp.se

E. J. Sandlund

SICOMP AB, P.O. Box 271 SE-941 26 Pitea°, Sweden

T. S. Lundstrom

Lulea ° University of Technology Division of Fluid Mechanics SE-971 87 Lulea°, Sweden

This article presents results from an experimental investigation in which two grades of aluminatrihydroxide (ATH) particles are added to liquid resin and used in infusion molding experiments. Based on the results, potential key mechanisms controlling resin flow and hence also the final particle distribution are proposed. A pore doublet model is proposed to explain the seemingly random spatial distribution of particle-dense regions within the final material. These dense regions are found within flow channels, at locations where local shear strain rates are low. This suggests that they are formed as a consequence of a Bingham type of viscosity behavior observed for the suspension and/or due to filtering of particles during fiber bundle impregnation.

Key Words: vacuum infusion • suspension • viscosity • particle distribution

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Journal of Reinforced Plastics and Composites, Vol. 25, No. 1, 59-70 (2006)
DOI: 10.1177/0731684406055455


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This Article Abstract Free Full Text (Free PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Web of Science (1) Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Fernberg, S. P. Articles by Lundstrom, T. S. Search for Related Content Social Bookmarking                         What's this?