▎ 摘　　要

NOVELTY - New speaker sound-absorbing cotton of this utility model claims the application of graphene, comprising a sound-absorbing cotton; the sound-absorbing cotton is multi-layer structure composed of polyurethane layer and the graphene layer, the graphene layer is arranged between the polyurethane layer. the polyurethane layer covering the graphene layer. New loudspeaker sound-absorbing cotton applied graphene in this utility model is multi-layer structure is composed of polyurethane and graphene, the graphene has excellent strength, flexibility and thermal conductivity, not only the sound absorbing cotton can ensure sound device, it can quickly heat the speaker cavity internal absorption and out, to avoid overheating of the device results in failure, and prolonging the service life of the device.