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Normas ASTM – AENOR
ASTM D7605-11(2016)

ASTM D7605-11(2016)

Standard Test Method for Thermoplastic Elastomers—Measurement of Polymer Melt Rheological Properties and Congealed Dynamic Properties Using Rotorless Shear Rheometers

Fecha:
2016-12-27 /Active
Significance and Use:

5.1 This test method is used to measure viscoelastic properties of thermoplastic elastomer polymer melts at elevated temperatures as well as the dynamic properties of the respective congealed thermoplastic elastomer specimens measured at lower temperatures. These polymer melt viscoelastic properties may relate to factory processing behavior while the dynamic properties of the respective congealed specimen may relate to product performance.

5.2 This test method may be used for quality control in thermoplastic elastomer manufacturing processes, for quality control of received shipments of thermoplastic elastomers, and for research and development testing of thermoplastic elastomers. This method may also be used for evaluating processing and product performance differences resulting from the use of different compounding materials and process conditions in the making of these thermoplastic elastomers.

Scope:

1.1 This test method covers the use of a rotorless oscillating shear rheometer for the measurement of the flow properties of polymer melts and their respective congealed dynamic properties for thermoplastic elastomers (TPE) which includes thermoplastic vulcanizates (TPV). These flow properties and congealed dynamic properties are related to factory processing and product performance.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords:
dynamic complex viscosity; loss modulus; processability test; rheological properties; rotorless oscillating shear rheometer; storage modulus; thermoplastic elastomer; thermoplastic vulcanizate (TPV); TPE; viscosity;
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