Cure Behavior by Dynamic Mechanical Analysis ASTM D4473
Determination of the cure behavior by Dynamic Mechanical Analysis according ASTM D4473 for thermosetting resins.
Cure Behavior by Dynamic Mechanical Analysis determines the cure properties of thermosetting resins by isothermal heating or thermal ramping in an oscillatory mode. Properties such as elastic modulus (or storage modulus, G'), viscous modulus (or loss modulus, G''), complex modulus (G*), complex viscosity (n*) and damping coefficient (Tan D) as a function of temperature or time can be determined.
The test sample is dispensed between the movable and stationary parallel plate fixtures and then enclosed in the thermal chamber. Frequency, amplitude, and a temperature range which is appropriate for the material are input in the equipment. The analyzer applies torsional oscillation to the test sample while slowly moving through the specified program.
Typically several grams of thermosetting material is required. Typical specimen sizes include 8mm, 25mm and 50mm depending on the viscosity of the material.
Results are typically provided as a graphical plot of G', G'', G*, n* and Tan D versus temperature or time.
The intersection of the G’ and G” curves is defined as the Gel Point of the thermosetting resin system.
Need help or have a question?
- Wilton UK:
- +44 1642 435 788
- +31 88 126 8888
- +65 6805 4800
- 0800 5855888
- +49 711 27311 152
- +41 61 686 4800
- 01 800 5468 3783
- +52 55 5091 2150
- +55 11 2322 8033
- +61 1300 046 837
- +91 22 4245 0207