Accession Number:

ADA207308

Title:

Interface Modified Glass Fiber/Thermoplastic Matrix Composites

Descriptive Note:

Progress rept. 1 Oct 1988-1 Mar 1989

Corporate Author:

FOSTER-MILLER INC WALTHAM MA

Report Date:

1989-03-01

Pagination or Media Count:

15.0

Abstract:

This Phase I SBIR program is applying a proprietary interface- modification process to improve the interaction between glass fibers and thermoplastic resin composite matrices. In our accomplishments thus far, we have selected PEEK as the thermoplastic matrix resin and chosen three candidate interface-modifier resins. Fiber wetting experiments will determine which of these candidates is best suited for use on the program. A glass fiber tow spreader that effectively separates the tow into a narrow ribbon of fibers was constructed. Extraction experiments have demonstrated that the oil-based, PEEK compatible sizing can be effectively removed from glass fibers without damage by extraction with an appropriate solvent. Equipment was constructed for winding separated glass tow onto a large diameter drum, then processing the separated tow to remove the present sizing and coat with interface-modifier resin solution while the fibers remain in place upon the drum. Coated fibers will also be staged-dried and heat-treated in place, forming interface-modified glass fibers that have been protected from abrasive damage during the entire interface- modification process.

Subject Categories:

  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE