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Cure Kinetics by DMA-isothermal


Test ID  
R-027

   
Description  
A dynamic mechanical analyzer is used with a parallel plate setup.  An uncured sample is placed between the plates at a desired temperature and a time scan is run at a single frequency.  The time scan is run until the material stops curing.  From complex viscosity v. time, the cure kinetics can be obtained.    
Options  
This test is performed at constant temperature. For non-isothermal (ramp) kinetics, please select R-028  
Standards  
ASTM 4473  
Data  
The cure conversion v. time data is reported at the test temperature. 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" for a specified temperature. Many times it is useful to run multiple temperatures to determine temperature dependency on cure rate.