Troubleshooting Prepreg Cure Failure Modes with Rheological Measurements

Understanding the complexities of curing prepregs is crucial in composite material research. This study offers an in-depth exploration of prepreg cure failure modes drawing upon the capabilities of an encapsulated specimen rheometer that meets ASTM D7750. Central to the investigation are five determinants (out time, temperature, ramp rate, pressure and layup orientation) and their effects on a select grade of prepreg. By examining these parameters, the study highlights the optimal conditions and presents insights into cure states and viscosity levels, aiming to further the reliability and performance of composite materials.