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ASTM D 4440 : 2015 : REDLINE

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for Plastics: Dynamic Mechanical Properties Melt Rheology
Available format(s)

PDF

Superseded date

25-11-2023

Language(s)

English

Published date

13-02-2015

CONTAINED IN VOL. 08.02, 2015 Gives the use of dynamic mechanical instrumentation in determining and reporting the rheological properties of thermoplastic resins and other types of molten polymers.

1.1This test method outlines the use of dynamic mechanical instrumentation in determining and reporting the rheological properties of thermoplastic resins and other types of molten polymers. It may be used as a method for determining the complex viscosity and other significant viscoelastic characteristics of such materials as a function of frequency, strain amplitude, temperature, and time. Such properties may be influenced by fillers and other additives.

1.2It incorporates a laboratory test method for determining the relevant rheological properties of a polymer melt subjected to various oscillatory deformations on an instrument of the type commonly referred to as a mechanical or dynamic spectrometer.

1.3This test method is intended to provide a means of determining the rheological properties of molten polymers, such as thermoplastics and thermoplastic elastomers over a range of temperatures by nonresonant, forced-vibration techniques. Plots of modulus, viscosity, and tan delta as a function of dynamic oscillation (frequency), strain amplitude, temperature, and time are indicative of the viscoelastic properties of a molten polymer.

1.4This test method is valid for a wide range of frequencies, typically from 0.01 to 100 Hz.

1.5This test method is intended for homogenous and heterogeneous molten polymeric systems and composite formulations containing chemical additives, including fillers, reinforcements, stabilizers, plasticizers, flame retardants, impact modifiers, processing aids, and other important chemical additives often incorporated into a polymeric system for specific functional properties, and which could affect the processability and functional performance. These polymeric material systems have molten viscosities typically less than 106 Pa·s (107 poise).

1.6Apparent discrepancies may arise in results obtained under differing experimental conditions. Without changing the observed data, reporting in full (as described in this test method) the conditions under which the data was obtained may enable apparent differences observed in another study to be reconciled.

1.7Test data obtained by this test method are relevant and appropriate for use in engineering design.

1.8The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.9This 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.

Note 1:This test method is equivalent to ISO 6721, Part 10.

Committee
D 20
DocumentType
Redline
Pages
5
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

SAE AMS 2950/1 : 2008 PASTE ADHESIVE FOR CORE RESTORATION - PART 1: GENERAL REQUIREMENTS
ASTM D 4065 : 2012 : REDLINE Standard Practice for Plastics: Dynamic Mechanical Properties: Determination and Report of Procedures
SAE AMS 2980/1 : 2014 CARBON FIBER FABRIC AND EPOXY RESIN WET LAY-UP REPAIR MATERIAL - PART 1 - GENERAL REQUIREMENTS
SAE AMS 3970/1 : 2011 CARBON FIBER FABRIC REPAIR PREPREG, 120 DEGREES C (250 DEGREES F) VACUUM CURING - PART 1 - GENERAL REQUIREMENTS
SAE AMS 3970/4 : 2011 CARBON FIBER FABRIC REPAIR PREPREG, 120 DEGREES C (250 DEGREES F) VACUUM CURING - PART 4: PURCHASING SPECIFICATION FOR FILM ADHESIVE
SAE AMS 3970/6 : 2011 CARBON FIBER FABRIC REPAIR PREPREG, 120 DEGREES C (250 DEGREES F) VACUUM CURING - PART 6 - MATERIAL SPECIFICATION: CARBON FIBER FABRIC REINFORCED EPOXY PREPREG FOR REPAIR, PLAIN WEAVE FABRIC, 193 G/M[2], ADHESIVE FILM FOR REPAIR AND NON-STRUCTURAL GLASS FIBER FABRIC REINFORCED EPOXY PREPREG, 105 G/M[2]
SAE AMS 3970/3 : 2011 CARBON FIBER FABRIC REPAIR PREPREG, 120 DEGREES C (250 DEGREES F) VACUUM CURING - PART 3: PURCHASING SPECIFICATION FOR CARBON PREPREG
SAE AMS 2950/1 : 2008(R2019) PASTE ADHESIVE FOR CORE RESTORATION - PART 1: GENERAL REQUIREMENTS

ASTM D 4065 : 2012 : REDLINE Standard Practice for Plastics: Dynamic Mechanical Properties: Determination and Report of Procedures
ISO 6721-10:2015 Plastics Determination of dynamic mechanical properties Part 10: Complex shear viscosity using a parallel-plate oscillatory rheometer
ASTM D 4000 : 2016 : REDLINE Standard Classification System for Specifying Plastic Materials

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