Daher

Impact of Thermal Consolidation on Thermoplastic Material

The project addressed a need to understand how thermal cycling during manufacturing affected the health and performance of a thermoplastic composite structure. Panels were produced by press consolidation under defined conditions, then subjected to additional thermal exposures to represent repeated manufacturing heat cycles. After each exposure, the material was evaluated using visual and ultrasonic non-destructive inspection, along with dynamic mechanical analysis and differential scanning calorimetry to assess thermal transition behavior and degree of crystallinity. Flexural specimens were also taken from the panels for property testing, with care taken to avoid extraction damage, and additional furnace exposure at about 250°C could be used if needed. The work was intended to provide a report linking thermal cycling to crystallization, material condition, and resulting material properties.