Phenol-formaldehyde Reinforced with 35% Wood Powder and 15% Mineral Powder(PF+WD35+MD15), Type 31

Alternative and trade names
Bakelite®
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Description

Phenolic resin filled with 35% wood powder and 15% mineral powder having key features such as:


  • increased heat resistance
  • Very good surface
  • High rigidity
  • Dimensional stability
  • Properties

    General

    Density ρ

    1.3 - 1.46 g/cm³ at 20 °C

    Mechanical

    Elastic modulus E

    7 - 9 GPa at 20 °C

    Elongation A

    0.9 % at 20 °C

    Impact strength, Charpy notched Ivnot

    1.4 - 1.6 kJ/m² at 20 °C

    Impact strength, Charpy unnotched Iunnot

    4.5 - 11 kJ/m² at 20 °C

    Max allowed stress σmax

    50 - 70 MPa at 20 °C

    at 0.9% strain

    Thermal

    Coefficient of thermal expansion α

    3E-5 - 5E-5 1/K at 20 °C

    Flammability

    UL 94 V1-V0

    Max service temperature, long Tmaxlong

    110 - 140 °C

    Max service temperature, short Tmaxshort

    140 - 180 °C

    Specific heat capacity cp

    1300 J/(kg·K) at 20 °C

    Thermal conductivity λ

    0.25 - 0.35 W/(m·K) at 20 °C

    Electrical

    Dielectric constant εr

    5 - 13 [-] at 20 °C

    Electrical resistivity ρel

    1.00E+8 - 1.00E+1 Ω·m at 20 °C

    Optical

    Transparency

    no

    Technological properties

    Application areas

    miniature circuit breaker housings, insulating caps, ashtrays, cookware fittings

    Fillers

    35% Wood Powder and 15% Mineral Powder

    Processing methods

    Injection molding, transfer molding, compression molding

    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.