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Cure Kinetics by DMA -non isothermal


Test ID  
R-028

   
Description  
A dynamic mechanical analyzer is used with a parallel plate setup.  An uncured sample is placed between the plates at a room temperature and a heating scan is run at a constant frequency.  The scan is run until the material stops curing.  From complex viscosity data, a cure rate can be calculated.    
Options  
This test is performed at constant heating rate. For isothermal kinetics, please select R-027  
Standards  
ASTM 4473  
Data  
The cure conversion v. temperature data is reported at the desired heating rate. Complex viscosity, G' and G" v. time are also available.  
Replicates (# of times this test is repeated)  
1  
Samples  
2 - plate rheology discs [details]

   

Application
 
Curing kinetics is useful for deterimining the the rate at which materials "set-up". It is useful to run heating rates to enable modeling of kinetic equations.