Preparation and dielectric properties of stannous oxide/polyimide composite films
In this paper,stannous oxide(SnO)was synthesized by hydrothermal method,and then the obtained SnO was introduced into polyimide matrix by in-situ polymerization method to prepare SnO/PI composite films.The contents of SnO have significant influence on the dielectric constant,dielectric loss,tensile strength and breakdown strength of the film.When the contents of SnO was 10wt％,the dielectric constant of the SnO/PI composite film was as high as 456,the dielectric loss was only 0.034,the tensile strength was 65 MPa,and the breakdown strength was 146.9 MV/m,respectively.The introduction of SnO into PI could greatly improve the dielectric properties of the composite PI films,so that it has a good application prospect in energy storage,aero-space,insulation and other fields.
polyimidecomposite filmtin oxidedielectric propertiesdielectric loss
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