Rheology‐morphology relationships in nylon 6/liquid‐crystalline polymer blends
作者:
F. P. La Mantia,
A. Valenza,
M. Paci,
P. L. Magagnini,
期刊:
Polymer Engineering&Science
(WILEY Available online 1990)
卷期:
Volume 30,
issue 1
页码: 7-12
ISSN:0032-3888
年代: 1990
DOI:10.1002/pen.760300103
出版商: Society of Plastics Engineers
数据来源: WILEY
摘要:
AbstractExtrusion measurements have been carried out on blends of nylon 6 and a liquid‐crystalline copolyesteramide (LCP). The flow curves at low temperature show a behavior similar to that of pure LCP with a rapid rise of the viscosity at low shear rates. At high shear rates the viscosity is lower than that for each of the two components. This minimum has been attributed to the lack of interactions between the two phases and to the formation of fibrils of the LCP phase. The SEM analysis shows, indeed, that fibrils of the LCP phase are produced in the convergent flow at the inlet of the capillary at high shear rates. These fibrils are lost during the flow in the long capillar
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