Flame retardant investigations on carbon fibre?reinforced polyurethane resin parts for aircraft applications produced by wet compression moulding

Epoxy resins are widely used in composite materials for aircraft applications. However, they difficult to recycle, thus posing an increasing challenge the aviation sector. By contrast, polyurethane (PUR) can be easily chemically recycled by solvolysis, but structural parts made of carbon fibre-reinforced polyurethanes (CF-PURs) currently not use This is due a lack knowledge about properties CF-PURs, especially during exposure higher temperatures and fire. To increase recyclability parts, example interior structures like seats, there need CF-PUR components which able fulfil flame retardant regulations as well quality production cycle time requirements industry. It was found that formulation processed wet compression moulding containing 9 wt% phosphorous polyol these