Non-Contact Inspection of Thermoset Automotive Prepreg Material
This analysis was performed for the purpose of measuring the resin weight/area of the prepreg material and level of impregnation. The analysis also measured distribution uniformity of the prepreg.
The results from the analysis show a distinct correlation between the ultrasound transmissivity and resin weight/area. The results also show localized non-uniformities (if present).
The correlation analysis demonstrates that Ultran’s NCU can accurately measure thermoset prepreg resin content.
- R²=95% for a very small sample set
Samples provided by Delta Tech (Delta Preg) of Italy and Hyosung of Korea
Correlation Between Resin Content and NCU Transmissivity – Delta Preg
C-Scan Images of Prepreg for Varying Resin Content (grams per square meter)
Correlation Between Level of Impregnation and NCU Transmissivity at 1 MHz frequency – Hyosung Prepreg
Localized Non-Uniformity for Epoxy Carbon Unidirectional Prepreg
Product: T800-140-DT235-37 F
Lot: H14-1113 – Delta Preg