Accession Number:

ADA184458

Title:

Molecular Composites: Processing, Post-Treatment and Mechanics

Descriptive Note:

Final rept. May 1983-Sep 1986

Corporate Author:

AIR FORCE WRIGHT AERONAUTICAL LABS WRIGHT-PATTERSON AFB OH

Report Date:

1987-07-01

Pagination or Media Count:

98.0

Abstract:

Composites of polyp-phenylene benzobisthiazole PBT with nylons and with polyether ether ketone PEEK were prepared in fiber and film form. Fiber and film spinning from dilute solutions in methane sulfonic acid MSA along with compression molding and sheet spinning were used to prepare materials for testing. Composite fibers of PBT and nylons exhibit tensile properties comparable to those previously reported for nylonPBT materials. The mechanical and thermomechanical properties can be dramatically improves by post-treatment under tension at temperatures exceeding the melting point of the nylon. The torsional modulus is decreased somewhat by such post-processing and is in the range of 700 to 1000 GPa. Films of nylonPBT material can be compression molded into larger articles, but the strength can be attributed to behavior of nylon alone.

Subject Categories:

  • Polymer Chemistry
  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE