NASA NTRS · 19900029295
Pultrusion process development of a graphite reinforced polyetherimide thermoplastic composite
Abstract
High performance thermoplastic polymers do not contain reactants and solvents able to react with a pultrusion die to yield polymerization; consolidation is therefore performed with a rigid or a boardy prepreg, and consolidation must occur with polymers whose viscosities are of the order of 1 million centipoises or more. Die temperatures are typically above 400 C, by comparison with the 150-200 C encountered in thermosets. A methodical approach is presented here for the development of a pultrusion process suitable for polyetherimide and other engineering thermoplastics, employing SEM, DSC, TGA, and ultrasonic C-scanning.
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Wilson, Maywood L., Buckley, John D., Dickerson, George E., Johnson, Gary S., Taylor, Edward C., Covington, Edward W.. 1989-07-01. Pultrusion process development of a graphite reinforced polyetherimide thermoplastic composite. https://ntrs.nasa.gov/citations/19900029295
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