FABRICATION OF POLYIMIDE/ SILVER COMPOSITE FILMS AND STUDY ONTHE RELATIONSHIP BETWEEN MORPHOLOGY AND PROPERTIES OF THE FILMS

Surface silvered (Ag) polyimide films containing different silver mass f raction f rom 9 % to 15 % basedmainly on 3 , 3’- 4 ,4’- benzophenonetet racarboxylic acid dianhydride (BTDA) , 4 , 4’- oxydianiline (ODA) and t rifluoroacetylacetone (AgTFA) were fabricated by an in si tu single-stage self-metallization process , factors influencingthe film properties were investigated , meanwhile , highly conductive (Surface resistance is about 1Ω) and highly reflective (Absolute reflectivity is 65.3 %) surface silvered polyimide films were obtained. Additionally , the relationship s between the submicron morphology and properties of the films are observed and the dynamic equation betweenreflectivity and cure time is explored for the first time.