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Unit 6, No. 12, Pouya Complex, Nazafarin St., Shah Nazari St., Madar Sq., Mirdamad, Tehran

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Metasan supplies epoxy resins, polyurethane, additives, and chemical solvents for retail and wholesale customers throughout Iran. At Metasan, you can purchase raw materials from brands including Khuzestan Petrochemical, Karun Petrochemical, Kumho Korea, Tosoh Japan, JANA Saudi Arabia, BASF, Wanhua China, Dorun, and Henan.

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Home/Products/ Polyimides/ Rohacell® 71 A Aircraft Grade Polymethacrylimide (PMI) Foam

Rohacell® 71 A Aircraft Grade Polymethacrylimide (PMI) Foam

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. Information provided by degussa.
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Applications
aircraft construction
Advantages
very homogeneous cell structure isotropic properties closed-cell rigid foam plastic based on PMI (polymethacrylimide) does not contain any CFCs Curing temperature up to 130C (266F) Curing pressure up to 0.35 MPa (50 psi) Sandwich components using ROHACELL® A as core material can be realized in a single work step (=cocuring) The structural components can be manufactured in an autoclave and by means of RTM easy to shape Thermoformability

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    Specifications

    PropertyValueUnit

    Mechanical Properties

    Compressive Strength1.5DIN 53421, ISO 844, ASTM D 1621MPa
    shear strength1.3DIN 53294, ASTM C 273MPa
    Tensile modulus-MD92ISO 527-2, ASTM D 638MPa
    Elongation at break-MD4.5DIN 53455, ISO 527-2, ASTM D 638%
    Tensile Stress at break-MD2.8DIN 53455, ISO 527-2, ASTM D 638MPa
    shear modulus29DIN 53294, ASTM C 273MPa
    Flexural strength2.5DIN 53423, ISO 1209, ASTM D 790MPa

    Physical Properties

    Density0.075DIN 53420, ISO 845, ASTM D 1622g/mL

    Thermal Properties

    Maximum Service Temperature180Heat Distortion Resistance; DIN 53424; Air°C