myTechnical Documents
Description: ROHACELL® is produced by thermal expansion of a co-polymer sheet of methacrylic acid and methacrylonitrile. During the foaming process the copolymer sheet is converted to PMI- PolyMethacrylImide. Alcohol is used as a blowing agent,thus ROHACELL® contains no fluorinated carbon hydrates and is halogen free. Information provided by degussa.
Details
Product Type
Producer
Supplier
Advantages
- very homogeneous cell structure
- isotropic properties
- self-extinguishing
- closed-cell rigid foam plastic based on PMI (polymethacrylimide)
- does not contain any CFCs
- Curing temperature up to 130C (266F)
- Curing pressure up to 0.35 MPa (50 psi)
- easy to shape
- Thermoformability
- Sandwich components using ROHACELL® S as core material can be realized in a single work step (= cocuring). The structural components can be manufactured in an autoclave or RTM.
- Other commonly used techniques such as SCRIMP are applicable.
Other Applications
The field of application for ROHACELL® S is railway, ship and aerospace applications.
Technical data
| Quantity | Value | Unit | Comment |
|---|---|---|---|
| Physical Properties | |||
| Density | 0.0750 | g/ml | DIN 53420, ISO 845, ASTM D 1622 |
| Thermal Properties | |||
| Maximum Service Temperature | 190 | ºC | Heat Distortion Resistance; DIN 53424; Air |
| Mechanical Properties | |||
| shear modulus | 34 | MPa | DIN 53294, ASTM C 273 |
| Tensile Stress at break-MD | 1.90 | MPa | DIN 53455, ISO 527-2, ASTM D 638 |
| Elongation at break-MD | 3.5 | % | DIN 53455, ISO 527-2, ASTM D 638 |
| Tensile modulus-MD | 90 | MPa | ISO 527-2, ASTM D 638 |
| Compressive Strength | 1.50 | MPa | DIN 53421, ISO 844, ASTM D 1621 |
| Poisson's ratio | 0.32 | Calculated | |
| shear strength | 1.20 | MPa | DIN 53294, ASTM C 273 |