Full Description

Scope: This document describes a flexural, non-resonance method for determining the components of the flexural complex modulus E* of polymers at frequencies typically in the range 0,01 Hz to 100 Hz. Higher-frequency measurements can be made, but significant errors in the dynamic properties measured are likely to result (see 10.2.2 and 10.2.3). The method is suitable for measuring dynamic storage moduli in the range 10 MPa to 200 GPa.

NOTE Although materials with moduli less than 10 MPa can be studied, more accurate measurements of their dynamic-mechanical properties can be made using shear modes of deformation (see ISO 6721?6).

This method is particularly suited to the measurement of loss factors greater than 0,02 and can therefore be conveniently used to study the variation of dynamic properties with temperature and frequency through most of the glass-rubber relaxation region (see ISO 6721?1). The availability of data determined over wide ranges of both frequency and temperature enables master plots to be derived, using frequency/temperature shift procedures, which present dynamic properties over an extended frequency range at different temperatures.

Cross References:
ISO 6721-1
ISO 6721-6


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Product Details

Published: 04/29/2019 ISBN(s): 9780580974595 Number of Pages: 18 File Size: 1 file , 720 KB Same As: ISO 6721-5:2019 Product Code(s): 30356013, 30356013, 30356013 Note: This product is unavailable in United Kingdom