Epoxy resins are one of the most important types of reactive glues. By changing the curing agents and/or conditions of curing, the rate of reaction is influenced.
For technical applications, the real curing behavior for certain conditions is a point of interest. Therefore, the kinetics of the curing reaction is often investigated on the basis of commercial products.
It is well known that only on the basis of several measurements, performed at different heating rates and/or different temperatures, the predictions exhibit a sufficient level of confidence. Therefore in this example 3 dynamic and 3 isothermal measurements are combined.
|Instruments:||NETZSCH DSC 204 Phoenix|
|Heating rates of dynamic measurements:||0.25, 1, 5 K/min|
|Isothermal temperatures:||137, 167, 197 ¡C|
|Sample mass:||8 .. 12 mg|
Tabular report of the time for a given degree of reaction
(Partial Area) Maximum time: 200 min