Evonik Rohacell® 31 IG-F Industrial Grade Polymethacrylimide (PMI) Foam

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Evonik Rohacell® 31 IG-F Industrial Grade Polymethacrylimide (PMI) Foam
Categories:	Other Engineering Material; Composite Core Material; Polymer; Thermoset; Polymethacrylimide
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® IG (=Industrial Grade) is a closed-cell rigid foam plastic based on PMI (polymethacrylimide) which does not contain any CFCs. The fields of application for ROHACELL® IG are model building, vehicle construction and shipbuilding, as well as the manufacture of sports articles and X-ray tables. Information provided by degussa. Evonik Industries is the successor company to Degussa.
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Physical Properties	Metric	English	Comments

Density	0.0320 g/cc	0.00116 lb/in³	DIN 53420, ISO 845, ASTM D 1622

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	1.00 MPa	145 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	0.0360 GPa	5.22 ksi	ISO 527-2, ASTM D 638
Flexural Strength	0.800 MPa	116 psi	DIN 53423, ISO 1209, ASTM D 790
Compressive Strength	0.400 MPa	58.0 psi	DIN 53421, ISO 844, ASTM D 1621
Poissons Ratio	0.38	0.38	Calculated
Shear Modulus	0.0130 GPa	1.89 ksi	DIN 53294, ASTM C 273
Shear Strength	0.400 MPa	58.0 psi	DIN 53294, ASTM C 273

Thermal Properties	Metric	English	Comments
CTE, linear	50.3 µm/m-°C	27.9 µin/in-°F
Maximum Service Temperature, Air	180 °C	356 °F	Heat Distortion Resistance; DIN 53424

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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