fracture energy g sub 1c j m sup 2 306 sup c temperature at 5 wt loss by tga in air 522 sup d moisture absorption ______________________________________ see table 2 for all footnotes for advanced composite applications the resin solution from example 2 was used to prepare a prepreg tape by passing a single tow of unsized celion u00ae 6000 graphite fiber available from basf a g through a dip tank and onto a 12 inch diameter multiple speed drum winder wrapped with release paper this produced a 23 0 cm by 190 cm wet prepreg having a smooth and good tack and drape characteristics the tape was dried on the rotating drum at room temperature for 16 hours and then removed from the drum and cut into 7 6 cm by 15 2 cm plies twelve plies were tacked unidirectionally and staged at 150 u00b0 c for one hour the staged lay up was placed in a cold matched metal die this was then inserted into a press preheated to 250 u00b0 c a thermocouple was attached to the matched die to determine the temperature when the die temperature reached 250 c 500 psi pressure was applied the composite was cured one hour at 250 u00b0 c and one.