Publication Date:
2019-07-13
Description:
Experimental studies are described in which new A-type polyimide prepolymer chemical modifications were investigated with the aim of increasing the melt phase duration and temperature range permitting autoclave processing, yet retaining the addition-type cure mechanism required for low-void content composites. Several modification candidates were examined, and one specific formulation was selected for detailed investigation. This A-type polyimide prepolymer formulation is shown to possess the desired characteristics.
Keywords:
MATERIALS, NONMETALLIC
Type:
Space shuttle materials; Proceedings of the National Technical Conference; Oct 05, 1971 - Oct 07, 1971; Huntsville, AL
Format:
text