Accession Number:

ADA158648

Title:

Evaluation of New Resin Systems.

Descriptive Note:

Final rept. 20 Sep 82-20 Jan 85,

Corporate Author:

ROCKWELL INTERNATIONAL THOUSAND OAKS CA SCIENCE CENTER

Personal Author(s):

Report Date:

1985-05-01

Pagination or Media Count:

141.0

Abstract:

Four new acetylene terminated resins were evaluated as matrix materials for advanced aerospace composites. They were Hughes HR600P and three Air Force developed resins including BATQ-HATP, ATB and m-ATS. Given one pound of each of the materials, neat resin tensile properties were first studied to determine the optimum cure cycle and service temperature capability. Graphite prepreg was prepared using a single tow hot-melt prepregger. Small unidirectional laminates were then fabricated and baseline mechanical properties generated for varying temperature conditions for both dry and moisture conditioned states. The following tasks were accomplished Differential scanning calorimetry, thermograviometric analysis and Rheometrics cure rheological anlaysis were performed on the four candidate resins. Neat resin microtensile specimens of HR600P, BATQ-HATP and ATB were prepared and tested to determine the optimum postcure cycle for these materials. AS4BATQ-HATP, AS4ATB and AS4m-ATS prepreg were prepared with a laboratory hot-melt prepregger. High quality laminates of AS4ATB and AS4m-ATS were prepared with the no bag autoclave technique. Void free laminates of AS4BATQ-HATP were prepared by press molding. Interlaminar shear, flexure, transverse flexure and G subscript 1c composite mechanical tests were performed. Physical property evaluations included prepreg resin content, cured laminate resin content, void evaluation and Tg Rheometrics. Interlaminar shear and G subscript 1c delamination failure surfaces were analyzed by SEM. Author

Subject Categories:

  • Polymer Chemistry
  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE