Defense

 

CM13 is a cyanate ester prepreg with good dimensional stability and high temperature resistance with Tg of 250 °C and mainly tailored for autoclave curing. CM13 is still under development stage.

Kordsa developed Phenolic Modified PVB-Aramid Flame retardant, High toughness, high energy transfer EF14 and PVB-Aramid High toughness, High energy transfer EF13 prepregs to be used in hard ballistic plates/inserts for vehicle protection and helmets for body protection to provide protection against non-deformable projectiles (fragments), deformable projectiles (bullets) and blunt impacts. These prepregs, comprised of high-tenacity aramid fibers and a phenolic/PVB based resins, will provide protection in such environments. It is particularly suited for helmet, vehicle armour and ceramic backing applications.

Recommended curing conditions are temperatures between 165°C and 175°C, and pressures between 10 and 50 bar for optimal performances. Typical curing times are 15-25 minutes and parts do not require cooling before demolding. The prepreg is compatible for vacuum-bag, platen press, and autoclave processes. For hard ballistic purposes, each customers should run some trials to establish their own proprietary processing conditions.

Resin Code Sectors Usage Area Misc TDS
CM 13 Aviation, Defense, Automotive Automotive under-hood parts, Secondary Aircraft Structures, Engines Low FST, Dimensional Stability in-prep
EF 13 Defense Ballistic Applications, Hard body armor High toughness, High energy transfer
EF 14 Defense Ballistic Applications, Hard body armor Flame retardant, High toughness, high energy transfer