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The Influence of Molecular Orientation on the Yield and Post-Yield Response of Injection-Molded Polycarbonate

โœ Scribed by Tom A. P. Engels; Leon E. Govaert; Han E. H. Meijer

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
870 KB
Volume
294
Category
Article
ISSN
1438-7492

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โœฆ Synopsis

Abstract

The influence of the flow history experienced during injection molding on the mechanical properties of amorphous polymers is investigated. It is demonstrated that flowโ€induced molecular orientation only causes a small anisotropic effect on the yield stress, which can be regarded as insignificant with respect to its absolute value. Its influence on the postโ€yield strainโ€hardening response is also shown to be imperceptible, in contrast to a orientation which is applied during deformation below the glas transition.

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