Carbon fiber prepreg 4565HT

epoxytooling

Due to 4565HT’s high Tg and excellent mechanical properties, typical applications include primary and secondary aircraft structures and areas where hot/wet performance and impact resistance are important (i.e. fuselage skins, engine nacelles, wing spars and skins, etc.) This material can be used to manufacture high temperature tooling, providing extended tool life when compared to standard epoxy options. 4565HT can be supplied with most commercially available fibers (carbon, quartz, aramid, S-glass, E-glass, etc.) in both woven, unidirectional tape, and hot melt tow. Woven fabrics are available in standard commercial widths up to 50 inches (1.2 m) with typical fiber weights ranging from 193 – 680 gsm (0.040 – 0.139 psf). Unitape widths up to 50 inches (1.2 m) are available in standard fiber weights ranging from 70 – 300 gsm (0.014 – 0.060 psf). Description 4565HT or (High Tg ) is a toughened bismaleimide (BMI) resin system. Versatile processing, excellent mechanical properties make 4565HT especially suited for aerospace, general aviation, and industrial markets. ©2017 Mitsubishi Chemical Carbon Fiber and Composites, Inc. All rights reserved Page 1 of 2 PL-4565HT - 112817 Processing conditions 4565 is typically processed using an autoclave. Our recommended cure cycle is as follows. Use a ramp rate of 3°F/min (1.7°C/min). Apply full vacuum and 100psi (690kPa). Ramp to 250°F (121°C) and hold for 45 min, ramp to 375°F (190°C) and cure for 6 hours, cool to <140°F (60°C) before removal. Apply free standing post cure @375°F (190°C) for 1 hour, ramp to 510°F (266°C) and hold for 4 hours, cool to <140°F (60°C) before removal.