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Mechanical Properties of LaRCTM-IA and ULTEM® Melt-Extruded Fibers and Melt-Pressed Films

Mechanical Properties of LaRCTM-IA and ULTEM® Melt-Extruded Fibers and Melt-Pressed Films LaRCTM-IA, the polyimide prepared with 3,4′-oxydianiline (3,4′-ODA) and oxydiphthalic anhydride (ODPA), is useful as a film, coating, adhesive, and composite matrix. The high temperature capability and fire-resistance of polyimides also makes them attractive candidates for textile fibers for a variety of uses in the automotive, chemical, and aerospace industries. This research describes for the first time the melt-spinning of phthalic anhydride endcapped LaRCTM-IA and the effects of processing conditions on the mechanical properties of slightly-drawn fibers. Average draw ratios varied from 1 to 3.9. Tensile strengths ranged from 103 to 159 MPa; moduli ranged from 2.80 to 3.21 GPa; elongations at break ranged from 14 to 103%. For comparison, tensile properties of compression-molded films prepared at the same temperatures are also reported. Melt-extruded fibers and melt-pressed films of another thermoplastic, ULTEM®, were also fabricated. ULTEM® fibers exhibited tensile strengths ranging from 138 to 207 MPa for average draw ratios of 4.5 to 10.3. Moduli ranged from 2.70 to 3.22 GPa. Elongations at break ranged from 47 to 111%. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advanced Performance Materials Springer Journals

Mechanical Properties of LaRCTM-IA and ULTEM® Melt-Extruded Fibers and Melt-Pressed Films

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Publisher
Springer Journals
Copyright
Copyright © 1998 by Kluwer Academic Publishers
Subject
Engineering; Automotive Engineering; Characterization and Evaluation of Materials; Classical Mechanics; Metallic Materials
ISSN
0929-1881
eISSN
1572-8765
DOI
10.1023/A:1008630431071
Publisher site
See Article on Publisher Site

Abstract

LaRCTM-IA, the polyimide prepared with 3,4′-oxydianiline (3,4′-ODA) and oxydiphthalic anhydride (ODPA), is useful as a film, coating, adhesive, and composite matrix. The high temperature capability and fire-resistance of polyimides also makes them attractive candidates for textile fibers for a variety of uses in the automotive, chemical, and aerospace industries. This research describes for the first time the melt-spinning of phthalic anhydride endcapped LaRCTM-IA and the effects of processing conditions on the mechanical properties of slightly-drawn fibers. Average draw ratios varied from 1 to 3.9. Tensile strengths ranged from 103 to 159 MPa; moduli ranged from 2.80 to 3.21 GPa; elongations at break ranged from 14 to 103%. For comparison, tensile properties of compression-molded films prepared at the same temperatures are also reported. Melt-extruded fibers and melt-pressed films of another thermoplastic, ULTEM®, were also fabricated. ULTEM® fibers exhibited tensile strengths ranging from 138 to 207 MPa for average draw ratios of 4.5 to 10.3. Moduli ranged from 2.70 to 3.22 GPa. Elongations at break ranged from 47 to 111%.

Journal

Advanced Performance Materials – Springer Journals

Published: Oct 1, 2004

References

  • Extrusion and Other Plastics Operations
  • Proceedings of the International Symposium, Beijing
    Yang, S.M.