Porous Polyimide Film

PFAS-Free, Environmentally Friendly Porous Polyimide Film

Polyimide porous membranes have high heat resistance, low thermal expansion, and excellent dimensional stability, making them suitable for use in substrates and other applications. Taking advantage of their various favorable properties including high air permeability, porous membranes can also be used in applications such as waterproof breathable membranes. In addition, they do not use organic fluorine compounds, making them suitable as an alternatives to PFAS or PTFE.

Features

  • Open cell structure with spherical pores
  • Consistent and uniform pore size
  • High porosity ⇒ high permeability, low dielectric constant
  • Low dielectric constant ⇒ Improved insulation and signal transmission

Unique and Uniform Microstructure

Unique and Uniform Microstructure
Unique and Uniform Microstructure
Unique and Uniform Microstructure

Intended Use Case

  • Various Separation Membranes
    (Lib Separator, etc.)
  • Low-Dielectric
    Substrate Material
  • Sound-Proof/Sound-Absorbing Materials
  • Heat Resistant/Insulating Materials

Membrane Properties

Item Unit μm Pore nm Pore
Porosity % 70 70
Gurley sec/100cc 8〜10 200〜300
Strength MPa 25〜35 25〜40
Elongation % 20〜45 25〜40
Thermal decomposition 571 571
Dielectric 1 GHz - - 1.495
10 GHz - 1.461

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