Because of the performance characteristics of polyimide and synthetic chemistry, in many polymers,
such as polyimide so hard to find with such a wide range of applications, but also in every aspect of
the show a very outstanding performance.
1 film: polyimide is one of the first commodity, for motor slot insulation and cable wrapping material.
A transparent polyimide film can be used as flexible solar cell substrate.
2. Paint: as an insulating paint for magnet wire, or as a high-temperature coatings.
3. Advanced Composites: for the aerospace, aircraft and rocket parts. It is one of the most high-temperature structural materials. E.g., U.S. supersonic aircraft speed plan is designed 2.4M, flight
surface temperature of 177 ℃, requires the service life of 60000h, is reported to have been
determined as 50% of the structural material to a thermoplastic polyimide matrix resin Carbon fiber
reinforced composite material, the amount of each aircraft is about 30t.
4. Fiber: elastic modulus after the carbon fiber as the medium and high-temperature filter material and radioactive substances bulletproof, fireproof fabric.
5. Foam: as high temperature insulation material.
6. Engineering Plastics: thermosetting also thermoplastic, thermoplastic molding can also be used
for injection molding or transfer molding. The main lubrication, sealing, insulation and construction
materials for the self. Wide polyimide materials have begun to use the rotary vane compressor,
piston rings and special pump seals and other mechanical parts.
7. Adhesive: as high temperature structural adhesive. Wide polyimide adhesives as electronic
components insulation potting material has high production.
8. membranes: for a variety of gases, such as the separation of hydrogen / nitrogen, nitrogen /
oxygen, carbon dioxide / nitrogen or methane, etc., to remove moisture from the air the
hydrocarbon feed gas and alcohols. But also as a pervaporation membrane ultrafiltration.
Since the polyimide heat resistance and organic solvent properties, has a special significance
in the separation of organic gases and liquids.
9. photoresist: negative and positive rubber glue, with sub-micron resolution. And pigments or dyes can be used with a color filter film, which can greatly
simplify processing operations.
10. In the microelectronic device applications: used as an interlayer dielectric layer insulation,
as a buffer layer can reduce stress and improve yield. As the protective layer can reduce
the impact of the environment on the device, it can also a- particles from the shielding effect,
reducing or eliminating soft error (soft error) devices.
-oriented Agent 11. The LCD used: polyimide in TN-LCD, STN-LCD, TFT-CD aligning agent material and future aspects of ferroelectric liquid crystal display occupies
a very important position.
12. - The light material: material used for passive or active waveguide optical switch materials,
fluorine-containing polyimide in the communication wavelength range of transparent polyimide as
a chromophore base material can be improved stability.
13. Humidity: The use of hygroscopic linear expansion of its principle can be used to make
a humidity sensor.
In summary, it is easy to see many of the aromatic heterocyclic polyimide polymer can reason from
the 1960s, 1970s stand out, eventually become reasons for an important class of polymer materials.