Exploratory Evaluation of Poly Fiber as a Precursor for High Mol Modulus Carbon Fiber.

摘要

Poly yarn was stretch-oriented to about twice its original length at 375C. This yarn was then carbonized under various conditions. The filament properties were measured on batch-graphitized yarn which had been subjected to various prior heat processing conditions (stretch-orientation,continuous carbonization,and heat soaking at 390C). Subsequent crosslinking studies on PPQ indicated that PPQ must be preheated to at least between 450and 480C in an inert atmosphere to obtain a reasonable degree of crosslinking for proper fiber stabilization. (Modified author abstract)