Item – Theses Canada

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OCLC number
46991646
Author
Tremblay, Sébastien,1972-
Title
Étude des paramètres d'injection influençant le comportement d'un composite polystyrène fibres de verre courtes.
Degree
Thèse (M. Sc. A.)--École polytechnique de Montréal, 1998.
Publisher
Ottawa : National Library of Canada = Bibliothèque nationale du Canada, [2000]
Description
2 microfiches
Notes
Comprend des références bibliographiques
Abstract
Short fiberglass fibers have gained a lot of attention as a reinforcing agent for thermoplastic composites since their molding capability has been transferred to the conventional injection molding process. Nevertheless, fiber integrity has to be maintained to give the composite the desired properties. The main objective of this study is to obtain information on the effect of the numerous injection parameters on fiber degradation inside a polystyrene matrix. The downside on mechanical and thermal properties of molded composite is also studied. Statistical experimental design has been used to obtain a rough estimate of the quantitative relative effects of one parameter to another on a response variable. The statistical study demonstrated that optimization based on mechanical properties (flexural and tensile modulus) created less downside than optimization based on stress at break and minimal degradation. This study showed the utility of statistical experimental planning (Taguchi method) for the choice of injection molding parameters leading to the desired targeted properties. (Abstract shortened by UMI.)
ISBN
0612387151
9780612387157