ASTM D4473-08(2016)
Standard Test Method for Plastics: Dynamic Mechanical Properties: Cure Behavior

Standard No.

ASTM D4473-08(2016)

Release Date

2008

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D4473-08(2021)

Latest

ASTM D4473-08(2021)

Scope

5.1 This test method provides a simple means of characterizing the cure behavior of thermosetting resins using very small amounts of material (fewer than 3 to 5 g). The data obtained may be used for quality control, research and development, and establishment of optimum processing conditions.

5.2 Dynamic mechanical testing provides a sensitive method for determining cure characteristics by measuring the elastic and loss moduli as a function of temperature or time, or both. Plots of cure behavior and tan delta of a material versus time provide graphical representation indicative of cure behavior under a specified time-temperature profile.

5.3 This test method can be used to assess the following:

5.3.1 Cure behavior, including rate of cure, gel, and cure time.

5.3.2 Processing behavior, as well as changes as a function of time/temperature.

Note 3: The presence of the substrate prevents an absolute measure, but allows relative measures of flow behavior during cure.

5.3.3 The effects of processing treatment.

5.3.4 Relative resin behavioral properties, including cure behavior and damping.

5.3.5 The effects of substrate types on cure.

Note 4: Due to the rigidity of a supporting braid, the gel time obtained from dynamic mechanical traces will be longer than actual gel time of the unsupported resin measured at the same frequency. This difference will be greater for composites having greater support-to-polymer rigidity ratios.3

5.3.6 Effects of formulation additives that might affect processability or performance.

5.4 For many materials, there may be a specification that requires the use of this test method, but with some procedural modifications that take precedence when adhering to the specification. Therefore, it is advisable to refer to that material specification before using this test method. Table 1 of Classification System D4000 lists the ASTM materials standards that currently exist.

1.1 This test method covers the use of dynamic-mechanical-oscillation instrumentation for gathering and reporting the thermal advancement of cure behavior of thermosetting resin. It may be used for determining the cure properties of both unsupported resins and resins supported on substrates subjected to various oscillatory deformations.

1.2 This test method is intended to provide a means for determining the cur......

ASTM D4473-08(2016) Referenced Document

• ASTM D4000 Standard Classification System for Specifying Plastic Materials
• ASTM D4065 Standard Practice for Plastics: Dynamic Mechanical Properties: Determination and Report of Procedures
• ASTM D4092 Standard Terminology: Plastics: Dynamic Mechanical Properties

ASTM D4473-08(2016) history

• 2021 ASTM D4473-08(2021) Standard Test Method for Plastics: Dynamic Mechanical Properties: Cure Behavior
• 2008 ASTM D4473-08(2016) Standard Test Method for Plastics: Dynamic Mechanical Properties: Cure Behavior
• 2008 ASTM D4473-08 Standard Test Method for Plastics: Dynamic Mechanical Properties: Cure Behavior
• 2003 ASTM D4473-03 Standard Test Method for Plastics: Dynamic Mechanical Properties: Cure Behavior
• 2001 ASTM D4473-01 Standard Test Method for Plastics: Dynamic Mechanical Properties: Cure Behavior
• 1995 ASTM D4473-95a Standard Test Method for Plastics: Dynamic Mechanical Properties: Cure Behavior