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Evonik's Rohacell Used in the China C919 Prototype

12 December 2010

Evoniks Rohacell PMI (Polymethacrylimide) rigid foam is being used in the rear pressure bulkhead prototype of China's first large commercial airliner C919.

It is the first time in China that a commercial aircraft applies composite material to its primary load-carrying structure.

The rear pressure bulkhead prototype is the first large-sized composite part completed on the C919, in which Rohacell is used to enhance the stiffness and buckling properties of the part. The production of this prototype was finished just 5 months after the CAD files were released, and the roll-out of the rear pressure bulkhead prototype in mid October has further validated the engineering design and manufacturing process.

Evonik endeavours to contribute to the development of the Chinese aircraft industry with our innovative materials and expertise, stated Siamak Djafarian, General Manager of Evonik High Performance Polymers Business Line in Asia Pacific, Rohacell has already been successfully used in the winglet and flap vane of ARJ21-700, the Chinese own-designed regional passenger jet. With this new development on C919, we see our cooperation with the Chinese aerospace industry going on.

The C919 prototype was unveiled officially on November 16th at the Airshow China 2010 in Zhuhai. The Commercial Aircraft Corp of China (Comac) has announced a launch order of up to 100, and expects a demand for 2,000 C919 narrow body in the domestic and overseas markets. Upon certification from regulators, the C919 is scheduled to enter commercial service in 2016.





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