Preparation and properties of intrinsically black polyimide films with cie lab color parameters close to zero and high thermal stability for potential applications in flexible printed circuit boards

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SUMMARY

Polyimide (PI) films have been widely used in modern industry for more than half a century since their first commercialization in 1960s due to the excellent combined thermal, mechanical, dielectric properties, and good environmental stability. Effects of the NDA units and the high-temperature imidization on the thermal and optical properties of the BPI films the high-temperature imidization on the thermal and optical properties of the BPI films were investigated in detail. were investigated in detail. Various measurements, including TGA, DMA, and TMA, were performed to invesVarious measurements, including TGA, DMA, and TMA . . .

 



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