Poly（wphenylene vinylene） （PPV） has such properties as conductivity, paramagnetizm, energy migration and conversion,it becomes widely and fascinatety in research of its application. But it has not been reported in sound ab- sorption before. In oder to get a new conductive composite film sound-absorbing material, PPV,graphene and copper phthal- ocyanine were blended to form film by a certain percentage. The results showed that the sound-absorbing of the material had a wide sound absorption bands and strong absorption capability,in the sound ...
