Polyimide Film Application
1, Photoresist: There are negative photoresist and the positive photoresist with a resolution of sub-micron. Polyimide film can be used in the color filter film combined with pigment and dye.
2, Separation membrane: Polyimide film is also widely used for various gases separation, such as oxygen and nitrogen, nitrogen and hydrogen, carbon dioxide and nitrogen or methane. Polyimide film also works as permeable membrane and ultrafiltration membrane. Because of the properties of heat resistance and solvent resistance, polyimide film has great significance on the organic gas and liquid separation.
3, In terms of microelectronic device, polyimide film can be used as dielectric layer, buffer layer, layer insulation, to reduce the stress and influence of environment on the device. In photoelectric material, polyimide film can be a passive or active waveguide material or optical switch.
What’s more, polyimide film is also widely used in space technology, FH machinery, electrical insulation, FPC (flexible printed circuit board), the TAB (pressure sensitive adhesive tape base material), aerospace. You can also see the appearance of polyimide film in fields like aviation, computer, electromagnetic wire, transformer, audio, mobile phone, computer, metallurgical, mining the electronic components industry. Polyimide film has great importance to automobile, transportation as well as electrical industry.
Above all, polyimide film as a polymer material with bright future development has been recognized by the industry fully. The application of polyimide film in the field of composite materials and structural materials is expanding. Polyimide film application in functional materials is emerging too. But so far, the development ofpolyimide film still hasn’t become a big variety. There are mainly two reasons. First, the cost is too high. Second, the stability of polyimide film products is poorer. But we believe that the development, production and application of polyimide film in the future will grow rapidly. In the future development, despite of inventing new varieties ofpolyimide film, we will also reduce the cost of material and improve the stability of the polyimide film product. We should devote all our strength to china polyimide film development.
