Knowde Brand Summary
Identification
- Core Type
- Polymer Name
- Technologies
- Product Families
- Composite Materials Functions
Features & Benefits
- Labeling Claims
Applications & Uses
- Markets
- Applications
- Composites End Use
- Composites Processing Methods
ROHACELL®
Evonik Brand
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® foam core, which is based on polymethacrylimide (PMI), is used as a core between, for example, CFRP facings or as a mandrel.
Knowde Brand Highlights
- Key Benefits
- High volume production at lower per unit production costs
- Freedom of design – for complex geometries
- Function integration – for integrated inserts, custom surface finishes, resin flow channels, etc.
- Tailored and tight density range
- High compression strength and temperature resistance at low density
- Compatibility with fast curing processes
- No hazardous ingredients
- Fire resistance according to DIN 75200 specification
- Key Attributes
Keeping It Light
Sandwich technology is an excellent way to reduce weight and thanks to its outstanding mechanical properties and low density, ROHACELL® HERO sandwich cores offer the most weight saving potential of all structural foams. Featuring a closed cell structure, ROHACELL® HERO minimizes added weight by taking up resin only in the cut surface cells – resulting in a lighter finished part weight compared with traditional honeycomb structures.
Long Haul Durability
Offering excellent elongation at break properties, ROHACELL® HERO remains robust and durable for the lifetime of the aircraft. Surface impact damage is easily visible during inspections and rework/repair is simple since the core damage does not extend beyond the initial impact location and there is no water ingress as can occur with honeycomb core structures.
With heat resistance of up to 210 °C (428 °F), processing or curing temperatures can be increased higher than other core materials allow (e.g., typical cure cycle at 180 °C/356 °F with maximum pressure dependent upon density). This results in significant reductions in total cycle time and faster part manufacturing. No other core material offers such ease of processing in a wide variety of processes, including autoclave, resin infusion, RTM and VARTM. Let our Shapes Department supply you with finished, ready-to-use net-shape ROHACELL® HERO parts. Your cores will be delivered ready for immediate use in your next processing step.- Eliminate waste
- Reduce in-house production time
- Up to 30 % cost savings
ROHACELL® HERO is a recommended grade for core material in sandwich structures for aircraft wings, landing gear doors, radomes, vertical and horizontal stabilizers, ailerons and other areas subject to surface impact damage.