Songhan Plastic Technology Co.,Ltd.

Evonik Corporation Rohacell® 51 S Self-Extinguishing Grade Polymethacrylimide (PMI) Foam

Category Other Engineering Material , Composite Core Material , Polymer , Thermoset , Polymethacrylimide
Manufacturer Evonik Corporation
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Evonik Corporation Rohacell® 51 S Self-Extinguishing Grade Polymethacrylimide (PMI) Foam.pdf
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Material Notes:
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. It has a very homogeneous cell structure and isotropic properties.Specific Notes for this Material: ROHACELL® S (self-extinguishing) is a closed-cell rigid foam plastic based on PMI (polymethacrylimide) which does not contain any CFCs. The field of application for ROHACELL® S is railway, ship and aerospace applications. Curing temperature up to 130C (266F). Curing pressure up to 0.35 MPa (50 psi). 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. ROHACELL® S is easy to shape. Thermoformability is another advantage of the core material.Information provided by degussa.
Physical Properties Metric English Comments
Density 0.0521 g/cc
0.00188 lb/in³
DIN 53420, ISO 845, ASTM D 1622
Mechanical Properties Metric English Comments
Tensile Strength at Break 1.10 MPa
160 psi
DIN 53455, ISO 527-2, ASTM D 638
Elongation at Break 3.5 %
3.5 %
DIN 53455, ISO 527-2, ASTM D 638
Modulus of Elasticity 0.0500 GPa
7.25 ksi
ISO 527-2, ASTM D 638
Compressive Strength 0.700 MPa
102 psi
DIN 53421, ISO 844, ASTM D 1621
Poissons Ratio 0.25
Shear Modulus 0.0200 GPa
2.90 ksi
DIN 53294, ASTM C 273
Shear Strength 0.600 MPa
87.0 psi
DIN 53294, ASTM C 273
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 190 °C
374 °F
Heat Distortion Resistance; DIN 53424
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