Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Lightweight porous sound-absorbing ceramic material as well as preparation process and application thereof
The invention relates to the technical field of sound-absorbing materials, in particular to a lightweight porous sound-absorbing ceramic material, a preparation process and application thereof, the lightweight porous sound-absorbing ceramic material comprises air holes and hole walls separating the air holes, a communicating channel penetrating through the hole walls is arranged between at least part of adjacent air holes, and the ratio of the diameter d of the communicating channel to the aperture D of the air holes is 1: (3-13). By adding the pore-forming agent and the foaming agent, pores are generated in the powder after the foaming agent is decomposed, and the pores are communicated after the pore-forming agent is oxidized and decomposed, so that at least adjacent partial pores in the prepared lightweight porous sound-absorbing ceramic material are communicated pores. According to the preparation process, compression molding is not needed, forming can be achieved by adopting a traditional ceramic sintering step, the process is simple, operation is convenient and rapid, large-scale modification on existing production equipment is not needed, and the light porous sound-absorbing ceramic material obtained through adjustment of the raw materials and the preparation process is high in strength and meanwhile high in sound-absorbing and noise-reducing effect and suitable for popularization and application. And a good water absorption effect is achieved.
本发明涉及吸音材料技术领域，尤其涉及一种轻质多孔吸音陶瓷材料、制备工艺及其应用，轻质多孔吸音陶瓷材料包括气孔和将气孔间隔开的孔壁，至少相邻的部分气孔间具有贯通孔壁的连通通道，连通通道的直径d：气孔的孔径D=1：3‑13。通过造孔剂和发泡剂的添加，发泡剂分解后使粉料内部产生气孔，造孔剂在氧化分解后使气孔连通，使制得的轻质多孔吸音陶瓷材料中至少相邻的部分气孔为连通孔。其制备工艺无需经过压制成型，采用传统的陶瓷烧结步骤即可成型，工艺简单，操作方便快捷，无需对现有生产设备做较大规模改动，经过上述原料和制备工艺的调整获得的轻质多孔吸音陶瓷材料，在强度相对较高的同时吸音降噪效果较高，且具有较好的吸水效果。
Lightweight porous sound-absorbing ceramic material as well as preparation process and application thereof
The invention relates to the technical field of sound-absorbing materials, in particular to a lightweight porous sound-absorbing ceramic material, a preparation process and application thereof, the lightweight porous sound-absorbing ceramic material comprises air holes and hole walls separating the air holes, a communicating channel penetrating through the hole walls is arranged between at least part of adjacent air holes, and the ratio of the diameter d of the communicating channel to the aperture D of the air holes is 1: (3-13). By adding the pore-forming agent and the foaming agent, pores are generated in the powder after the foaming agent is decomposed, and the pores are communicated after the pore-forming agent is oxidized and decomposed, so that at least adjacent partial pores in the prepared lightweight porous sound-absorbing ceramic material are communicated pores. According to the preparation process, compression molding is not needed, forming can be achieved by adopting a traditional ceramic sintering step, the process is simple, operation is convenient and rapid, large-scale modification on existing production equipment is not needed, and the light porous sound-absorbing ceramic material obtained through adjustment of the raw materials and the preparation process is high in strength and meanwhile high in sound-absorbing and noise-reducing effect and suitable for popularization and application. And a good water absorption effect is achieved.
本发明涉及吸音材料技术领域，尤其涉及一种轻质多孔吸音陶瓷材料、制备工艺及其应用，轻质多孔吸音陶瓷材料包括气孔和将气孔间隔开的孔壁，至少相邻的部分气孔间具有贯通孔壁的连通通道，连通通道的直径d：气孔的孔径D=1：3‑13。通过造孔剂和发泡剂的添加，发泡剂分解后使粉料内部产生气孔，造孔剂在氧化分解后使气孔连通，使制得的轻质多孔吸音陶瓷材料中至少相邻的部分气孔为连通孔。其制备工艺无需经过压制成型，采用传统的陶瓷烧结步骤即可成型，工艺简单，操作方便快捷，无需对现有生产设备做较大规模改动，经过上述原料和制备工艺的调整获得的轻质多孔吸音陶瓷材料，在强度相对较高的同时吸音降噪效果较高，且具有较好的吸水效果。
Lightweight porous sound-absorbing ceramic material as well as preparation process and application thereof
一种轻质多孔吸音陶瓷材料、制备工艺及其应用
ZHANG GUOTAO (Autor:in) / NIE XINCHAO (Autor:in) / YANG JINGQI (Autor:in) / FENG HONGJIAN (Autor:in) / LIU WENLONG (Autor:in) / JIANG FENG (Autor:in) / DAI YONGGANG (Autor:in) / DENG BO (Autor:in) / XUE JUNDONG (Autor:in)
25.03.2022
Patent
Elektronische Ressource
Chinesisch
LIGHTWEIGHT POROUS SOUND-ABSORBING CERAMIC MATERIAL, PREPARATION PROCESS AND APPLICATION THEREOF
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