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Degussa AG Rohacell® 71 S Self-Extinguishing Grade Polymethacrylimide (PMI) Foam

 

Subcategory: Thermoset; Composite Core Material; Polymer

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.

Available Properties
  • Density
  • Tensile Strength at Break
  • Elongation at Break
  • Modulus of Elasticity
  • Compressive Strength
  • Poissons Ratio
  • Shear Modulus
  • Shear Strength
  • Maximum Service Temperature, Air
   
Property Data

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