Publication:
Coextrusion of tpu and BaSO4 filled medical-grade TPU

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KU Authors

Co-Authors

Lu, Guangyu
Kalyon, Dilhan M.

Advisor

Publication Date

2003

Language

English

Type

Conference proceeding

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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.

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Source:

Annual Technical Conference - ANTEC, Conference Proceedings

Publisher:

N/A

Keywords:

Subject

Chemistry

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