Preparation of surface-silvered graphene-CNTs/polyimide hybrid films: Processing,morphology and properties |
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Authors: | Zhixiang Zheng Zaihua Wang Qingliang Feng Fengyuan zhang Yongling Du Chunming Wang |
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Affiliation: | 1. College of Chemistry and Chemical Engineering, Lanzhou University, 730000 Lanzhou, China;2. School of Basic Medical Sciences, Ningxia Medical University, 750004 Yinchuan, China |
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Abstract: | Silver nanoparticles modified graphene-carbon nanotubes/polyimide (Gr-CNTs/PI) films have been prepared by electrochemical reduction of silver nitrate on potassium hydroxide hydroxylated of Gr-CNTs/PI films surface. The as-prepared nanocomposites were characterized by transmission electron microscopy, scanning electron microscopy, X-ray diffraction analyzer and semiconductor characterization system. The lower content of Gr-CNTs (≤10 wt. %) doping in PI matrix can improve the conductivity of PI films more clearly than pure CNTs. The conductivity can be regulated by controlling Gr-CNTs content in PI matrix. These silver nanoparticles into Gr-CNTs/PI films presented here can act as deposition seeds which can initiate subsequent electroless silver or copper or electrodeposition other metal. |
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Keywords: | Polymers Composite materials Thin films Electrical conductivity |
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