Phenol-formaldehyde Reinforced with 50% Mica Fibres (PF+PF50), Type 13

Alternative and trade names
Bakelite®
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Description

Phenolic resin filled with 25% cellulose fibres and 20% mineral powder having key features such as:


  • Good heat resistance
  • High viscosity flow characteristics
  • This material data has been provided by M-Base.

    All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
    Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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    Properties

    General

    PropertyValue

    Density

    1.75 - 1.9 g/cm³

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    Mechanical

    PropertyValueComment

    Elastic modulus

    7.0 - 9.0 GPa

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    Elongation

    0.4 - 0.8 %

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    Impact strength, Charpy notched

    1.5 - 2.5 kJ/m²

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    Impact strength, Charpy unnotched

    2.5 kJ/m²

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    4.5 kJ/m²

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    Tensile strength

    30.0 - 50.0 MPa

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    at 0.4-0.8% strain

    Thermal

    PropertyValueComment

    Coefficient of thermal expansion

    2e-05 - 3e-05 1/K

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    Max service temperature

    200 °C

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    Short

    150 °C

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    Long

    Thermal conductivity

    0.6 - 0.7 W/(m·K)

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    Flammability

    UL 94 V1

    Electrical

    PropertyValue

    Dielectric constant

    3 [-]

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    6 [-]

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    Electrical resistivity

    10000000000.0 - 100000000000.0 Ω·m

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    Optical

    PropertyValue

    Transparency

    no

    Technological properties

    Property
    Application areas

    electric motor slip ring commutators, bobbins

    Fillers

    50% Mica Fiber

    Processing methods

    Injection molding, transfer molding, compression molding