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Rheological and extrusion characteristics of glass fiber-reinforced polycarbonate

✍ Scribed by B. Anders Knutsson; James L. White; Kent B. Abbas

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
1022 KB
Volume
26
Category
Article
ISSN
0021-8995

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✦ Synopsis

Abstract

An experimental investigation of the rheological properties of glass fiber‐reinforced polycarbonate melts and the extrusion of such compounds through capillary and slit dies is presented. The viscosity–shear rate function seems independent of instrument for cone‐plate and capillary investigations. The presence of fibers increases the level of the viscosity. Normal stresses at fixed shear stress are also increased by the presence of fibers. The extrudate swell is decreased by the presence of fibers and surface roughness is increased. Fiber orientation increases and surface roughness decreases with increasing extrusion rate.

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