A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
MULTI-STAGE FOAM SOUND-ABSORBING BLACK BODY MATERIAL, AND PREPARATION METHOD THEREFOR
In the present invention, a multi-stage foam sound-absorbing black body material is provided for the first time. A graphene aerogel is introduced into a commercialized polymer foam skeleton by using a solvent plasticizing and foaming technology, so as to embed ultra-thin graphene drums in the foam skeleton. When sound waves enter the foam black body, a large number of graphene drums generate a severe resonance effect, thereby rapidly achieving attenuation of the sound waves, and combined with the friction loss of the porous structure of the polymer foam on the sound waves, excellent sound-absorbing performance is achieved in a wide frequency range. The present solution is provided on the basis of commercialized foam materials, has a simple method, low costs, and the potential of wide industrial application.
MULTI-STAGE FOAM SOUND-ABSORBING BLACK BODY MATERIAL, AND PREPARATION METHOD THEREFOR
In the present invention, a multi-stage foam sound-absorbing black body material is provided for the first time. A graphene aerogel is introduced into a commercialized polymer foam skeleton by using a solvent plasticizing and foaming technology, so as to embed ultra-thin graphene drums in the foam skeleton. When sound waves enter the foam black body, a large number of graphene drums generate a severe resonance effect, thereby rapidly achieving attenuation of the sound waves, and combined with the friction loss of the porous structure of the polymer foam on the sound waves, excellent sound-absorbing performance is achieved in a wide frequency range. The present solution is provided on the basis of commercialized foam materials, has a simple method, low costs, and the potential of wide industrial application.
MULTI-STAGE FOAM SOUND-ABSORBING BLACK BODY MATERIAL, AND PREPARATION METHOD THEREFOR
MEHRSTUFIGES, SCHALLABSORBIERENDES, SCHWARZES SCHAUMSTOFFKÖRPERMATERIAL UND HERSTELLUNGSVERFAHREN DAFÜR
MATÉRIAU DE CORPS NOIR ABSORBANT ACOUSTIQUE EN MOUSSE À PLUSIEURS ÉTAGES, ET SON PROCÉDÉ DE PRÉPARATION
XU ZHEN (author) / PANG KAI (author) / GAO CHAO (author) / LIU XIAOTING (author)
2024-04-24
Patent
Electronic Resource
English
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