Recoverable Shear Strain and the Barus Effect in Polymer Extrusion
作者:
E. B. Bagley,
H. J. Duffey,
期刊:
Transactions of the Society of Rheology
(AIP Available online 1970)
卷期:
Volume 14,
issue 4
页码: 545-553
ISSN:0148-6055
年代: 1970
DOI:10.1122/1.549178
出版商: The Society of Rheology
数据来源: AIP
摘要:
Following essentially the analysis of Nakajima and Shida but using a one‐constant stored energy function a simplified relationship is given between recoverable shear strain imposed on a flowing melt during capillary flow and the magnitude of the extrudate swelling on emerging from the capillary. Where experiments on capillaries of several different(L/R)values cannot be carried out there are some advantages to studies using a zero‐length (orifice) die rather than a long capillary.
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