Publication: Coextrusion of tpu and BaSO4 filled medical-grade TPU
Program
KU-Authors
KU Authors
Co-Authors
Lu, Guangyu
Kalyon, Dilhan M.
Advisor
Publication Date
2003
Language
English
Type
Conference proceeding
Journal Title
Journal ISSN
Volume Title
Abstract
Coextruded products for the medical device industry, involving layers of filled and unfilled polymers, are difficult to fabricate, especially due to the various degradative processes taking place especially when various stabilizers are not included in the medical-grade formulations. Significant differences in the degradation behavior and the subsequent rheological behavior of unfilled and BaSO4 filled TPUs generally give rise to severe fluctuations at the interfaces and poor coextruded products. It is shown here that the shear viscosity values of the filled and unfilled TPU need to be matched under the extrusion conditions to obtain acceptable coextruded medical products.
Description
Source:
Annual Technical Conference - ANTEC, Conference Proceedings
Publisher:
N/A
Keywords:
Subject
Chemistry