BOPI (Biaxial
Oriented Polyimide film, similar to Kapton HN) is achieved by
polycondensation of PMDA and ODA in strong polar solvents,
through the process of film forming, and then being stretched
and Oriented by biax during the course of imine at high
temperature. BOPI film is a special kind of Polyimide film,
however, as the result of Biaxial Orientation, BOPI film
possesses higher physical, chemical, and electrical properties,
which performs successfully in the wide range of temperature as
low as -452F(-269c) and as high as +500F(+260c) and can be
exposed at +752F(400c) in short time, besides, it is of atomic
radiation resistant. BOPI film is currently the macromolecular
compound with the best combined properties and the highest heat
resistant. |