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GUR® UHMW-PE Premium Grades With Vitamin E
Today, most implants are treated by modern irradiation techniques for sterilization
and/or performance improvement. As a result of processes, free radicals are formed in the UHMW-PE which
can accelerate in vivo oxidation and shelf aging of the implants. Degradation of the material results
in reduced mechanical properties, including reduced wear resistance.
Vitamin
E is a collective term for the group of tocopherols, of which alphatocopherol shows the best properties
as an antioxidant. It is a natural substance that already exists in the human body and can be used as
a stabilizer for the orthopedic implants made from UHMW-PE. Alpha-tocopherol acts as a radical scavenger
and eliminates the free radicals preventing oxidation of the material.
Ticona
now provides the first vitamin E powder blend available on a commercial basis. The material is produced
in accordance with ASTM F2965 and can be processed like virgin GUR® UHMW-PE premium powder. All mechanical
properties remain unchanged compared to the original GUR UHMW-PE premium grades. The blend follows the
typical high standards of product cleanliness and shows a very uniform vitamin E distribution.
GUR® UHMW-PE with Vitamin E
Testing
Samples Available
For free polymer powder samples, please contact:
Gunther Redeker
Phone:
49 6107 772 1483
Email: redeker@ticona.de
Rainer
Walkenhorst
Phone: +49 208 693 2387
Email:
rainer.walkenhorst@ticona.de
For free preformed billet samples, please contact:
Lou Matrisciano
Global
Technology Manager
MediTECH Medical Polymers
A
division of Quadrant EPP
2710 American Way
Fort
Wayne, Indiana 46809
Ph: (260)-479-4387
Fx:
(260)-478-1074
Lou.Matrisciano@qplas.com
David
Brooks, MD
Orthoplastics Ltd
brooks@orthoplastics.com
Ph
Int. 44-170-687-1200
www.orthoplastics.com
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