Research progress of matt black polyimide film-technical knowledge

by:POLYVA     2021-12-24
Research progress of matt black polyimide film source: protective film factory direct sales Release time: 2019-03-08 Click: 3037 With the rapid development of electronic technology, the cycle of electronic products replacement is shortened, and the key materials needed for it are reduced. Comprehensive performance requirements are getting higher and higher. Diversified requirements are also put forward for the functions of PI films, and PI films with various characteristics have emerged, such as transparent yellow PI films, low thermal expansion coefficient PI films, dimensionally stable PI films, low dielectric constant PI films, and black PI films. , Matte black PI film, matt black PI film, etc. In recent years, it has been discovered that when the earliest transparent golden yellow PI film is applied to the copper foil, the circuit design distribution printed on the circuit layer of the circuit board can be easily interpreted and copied. Therefore, manufacturers began to use opaque black PI film to cover electronic materials such as flexible circuit boards, electronic components, and lead frames of integrated circuit packages to prevent visual inspection and tampering. At present, with people's pursuit of high-end appearance and texture of electronic products, pure black PI film can no longer meet the requirements. The appearance color with three characteristics of black, soft gloss and matt has become the new development direction of PI film. Therefore, matt black PI film has become the mainstream cover film material for electronic packaging. Foshan Polyva is a manufacturer that is producing matte films. We welcome all customers to inquire and we will serve you wholeheartedly.
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