Study on the properties of polyimide composite film
In order to improve the corrosion resistance of the metal shell of the battery pack,carbon nanotubes and graphene powder were doped into the polyimide coating to obtain a polyimide composite coating,and the changes of corrosion resistance,conductivity and toughness before and after adding na-no-carbon materials at 200℃were also studied.The results showed that the corrosion resistance,elec-trical conductivity and mechanical properties of the polyimide were improved after doping carbon nano-tubes,especially the electrical conductivity was greatly improved,and the performance of polyimide was most significantly improved by doping 1%CNTs and 0.5%graphene at the same time,which indi-cated that adding one-dimensional and two-dimensional nano-materials to polyimide at the same time could better improve the performance of the coating.
万方数据
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