Accession Number:

ADA265016

Title:

Dry In-Line Thermoplastic Matrix Impregnation. Phase 1

Descriptive Note:

Final rept. Aug 1992-Jan 1993

Corporate Author:

NORTH COAST INNOVATION INC CLEVELAND OH

Personal Author(s):

Report Date:

1993-04-01

Pagination or Media Count:

47.0

Abstract:

The objective of this program is to develop an in-line thermoplastic impregnation module which can be used with existing automated manufacturing systems, such as filament winding equipment, which were originally designed for use with thermoset materials. During Phase I, the ability to melt impregnate non-woven glass tow with polyphenylene sulfide PPS, nylon, and polycarbonate resins has been demonstrated at the breadboard level by using a laboratory injection molding press to feed resins to a melt coating module. The tow was preheated prior to coating by means of a convection heating tunnel. Key parameters governing melt penetration included incoming tow temperature and melt viscosity. Further development of the process would allow the creation of composite shapes and structures which could be post processed by thermoforming techniques and would have the desirable performance characteristics of thermoplastics such as damage tolerance impact resistance and repairability

Subject Categories:

  • Miscellaneous Materials
  • Manufacturing and Industrial Engineering and Control of Production Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE