SABIC's Low-moisture Absorbing PEI Replaces PMI in Aerospace Applications
SABIC's Innovative Plastics strategic business unit is presenting the low moisture absorption of Ultem* polyetherimide ( PEI ) foam for composite aircraft structures. Ultem resin's low-moisture absorption is critical in that it helps address two major aircraft OEM challenges: reducing weight for fuel conservation and emissions reduction, and lowering systems costs while delivering equal or better performance than traditional materials. Low moisture absorption combined with the proven flame-smoke-toxicity (FST), dielectric, acoustic and thermal performance of Ultem foam underscores the pioneering work of SABIC in engineering superior, world-renowned thermoplastic solutions for the aircraft industry. "By replacing competitive materials such as polymethacrylimide (PMI) with Ultem foam, OEMs and tiers can meet their environmental goals and industry challenges, while lowering systems costs by streamlining processing and extending the application's useful life," sai