EVONIK INDUSTRIES composit matherials

ROHACELL

For more than 40 years, Evonik's ROHACELL® structural foam has been offering the aerospace and automotive industries, medical technology, and other markets boundless possibilities for lightweight construction of parts or products made from high-performance composites. In such applications ROHACELL®, which is based on polymethacrylimide (PMI), is used as a core between, for example, CFRP facings.

Polymethacrylimide (PMI) advantages (closed-cell rigid foam):

- capability of termoforming

/in contradistinction from honeycomb, which geometry will be violated if curved and lead to worsen structural performance of a part, Rohacell maintain structural strength/

- ease of workability

- compatibility with any resin and thermoplastic polymers

- 100% closed-cells structure

- high deformation point (up to +235Ñ)

- excellent weight to rigidity ratio

- CFC and halogen free

- good dielectricity properties

- transparency for number of rays

- non-toxic, low smoke emission

- high corrosion resisatance

In addition to more than 200 customer specifications a lot of specific approvals for the use of ROHACELL® exist from major players in the aviation & aerospace

industry, for example:

Airbus UK Approval No. 100300

Airbus Approval No. 192744

Rolls Royce Approval No. 100730

BAE Systems Approval No. BAE/AG/30540/MAA

AugustaWestland Approval No. G13G

Nato Gage Code Approval No. D-2204