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Degussa AG Rohacell® 70 Polymethacrylimide (PMI) Rigid Foam Sheet

 

Subcategory: Thermoset; Composite Core Material; Polymer

Close Analogs: This grade is not a part of the current Degussa product line.

Material Notes:
ROHACELL 71 is a low density grade and a very high strength:weight ratio.

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.

Available Properties
  • Density
  • Water Absorption
  • Moisture Absorption at Equilibrium
  • Water Absorption at Saturation
  • Moisture Expansion
  • Tensile Strength, Ultimate
  • Elongation at Break
  • Modulus of Elasticity
  • Flexural Yield Strength
  • Compressive Yield Strength
  • Shear Modulus
  • Shear Strength
  • Surface Resistance
  • Dielectric Constant
  • Dissipation Factor
  • CTE, linear -100°C
  • CTE, linear 20°C
  • Thermal Conductivity
  • Maximum Service Temperature, Air
  • Oxygen Index
  • Color
   
Property Data

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