Carbon fabric reinforced propargyl ether/phthalonitrile composites produced by vacuum infusion

Heat-resistant polymer composites were obtained from 4-[3-(prop-2-yn-1-yloxy)phenoxy]benzene-1,2-dicarbonitrile and carbon fabric by a vacuum infusion molding process. The composite materials demonstrated the retention of mechanical properties down to 80% at 350°C and low inflammability (limiting oxygen index, 75%).