Evonik Rohacell® P 170 Polymethacrylimide (PMI) Rigid Foam Sheet

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Evonik Rohacell® P 170 Polymethacrylimide (PMI) Rigid Foam Sheet (discontinued **)
Categories:	Other Engineering Material; Composite Core Material; Polymer; Thermoset; Polymethacrylimide
Material Notes:	ROHACELL P 170 is a compacted grade with an oriented cell structure leading to high strength and rigidity in the plane of the sheet. General ROHACELL Information: ROHACELL is a closed-cell rigid expanded plastic material for lightweight sandwich construction. It has excellent mechanical properties, high dimensional stability under heat, solvent resistance and, particularly at low temperature, a low thermal conductivity. The strength and moduli values are the highest are the highest for any foamed plastic in its density range. ROHACELL is manufactured by hot forming of methacrylic acid/methacrylonitrile copolymer sheets. During foaming this copolymer is converted to polymethacrylimide. Information supplied by Emkay Plastics, Ltd.
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Physical Properties	Metric	English	Comments

Density	0.170 g/cc	0.00613 lb/in³	ASTM D1622-63

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	7.38 MPa	1070 psi	ASTM D638-68
Elongation at Break	5.0 %	5.0 %	ASTM D638-68
Modulus of Elasticity	0.314 GPa	45.5 ksi	ASTM D638-68
Flexural Yield Strength	9.79 MPa	1420 psi	Perpendicular to Sheet; ASTM D 790-66
	10.3 MPa	1490 psi	ASTM D790-66
Compressive Yield Strength	2.74 MPa	398 psi	Perpendicular to Sheet; ASTM D 1621-64
	6.37 MPa	924 psi	ASTM D1621-64
Shear Modulus	0.0862 GPa	12.5 ksi	ASTM C273-61
Shear Strength	2.94 MPa	427 psi	Perpendicular to Sheet; ASTM C 273-61
	4.41 MPa	640 psi	ASTM C273-61

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	130 °C	266 °F	Dimensional stability per DIN 53424; oriented cell structure starts to decrease beyond this temperature.

Descriptive Properties
Color	White

**
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PROHA04 / 66309

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