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Kinetics of the humid aging of magnetic recording tape

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2 Author(s)
H. Bertram ; Ampex Corporation, Redwood City, CA ; E. Cuddihy

The kinetics of the hydrolysis of polyester urethane binders of magnetic recording tape is described. Kinetic data were generated from measurements of acetone-extractable hydrolyzed binder products versus time for various humidity-temperature environments. These data can be described by a linear, single product, reversible rate equation. This equation, coupled with measurements on the effect of hydrolysis on recorded tape performance, is used to predict proper environmental storage conditions for magnetic tape.

Published in:

IEEE Transactions on Magnetics  (Volume:18 ,  Issue: 5 )