Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10393305 | Thermochimica Acta | 2005 | 5 Pages |
Abstract
Many thermosets are rapidly mixed and processed to quickly and efficiently effect a bond or produce a protective coating or a finished part. These processes are often characterized by non-linear time-temperature profiles. While it is often desirable to model the cure it can be challenging with such highly reactive systems in rapid processes. Described here is a hybrid approach to determine the kinetic equation for such a system. DSC multiple heating rate, isothermal and simulated process methods were combined with time-temperature superposition methodology to generate a master curve for the chemically controlled cure. Analysis of the master curve showed that it could be described by a second-order kinetic equation, consistent with polyurethane cure and permitting the complete kinetic description of the system.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
R. Bruce Prime, Candice Michalski, C. Michael Neag,