Estimation of Elastic Recovery, Work of Decompression and Young's Modulus Using a Rotary Tablet Press

Author:

Dwivedi S K1,Oates R J1,Mitchell A G1

Affiliation:

1. Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, BC, V6T 1Z3 Canada

Abstract

Abstract Capping and lamination occur when the bonds within a tablet cannot withstand the elastic recovery during decompression. To estimate tablet recovery, it is necessary to subtract the machine recovery from the total recovery during decompression. A direct relationship between the force and machine deformation is applied in a novel fashion to calculate in-die tablet recovery on a Manesty Betapress and to estimate the Young's modulus, E, of various solids from the recovery data. The E values of about twenty-five pharmaceutical solids were found to be in reasonable agreement with literature values. This procedure allows in-process analysis of tablet recovery and gives E without the use of specialized equipment.

Publisher

Oxford University Press (OUP)

Subject

Pharmaceutical Science,Pharmacology

Reference47 articles.

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