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Light ceramic sound absorption material with excellent medium-low frequency sound absorption performance and preparation method thereof
The invention discloses a light ceramic sound absorption material with excellent medium-low frequency sound absorption performance and a preparation method thereof. The method comprises the followingsteps of: adding pulverized coal, a gelatinizing agent, a dispersing agent, solid waste, a ceramic raw material and inorganic salt into a solvent, uniformly mixing to obtain slurry, foaming, carryingout injection molding, firing, dipping the firing product into a whisker raw material suspension, and sintering to obtain the material. The apparent porosity of the material is 85.6%-88.5%, the volumeweight is 0.28-0.40 g/cm<3>, the noise reduction coefficient is 0.58-0.65 (measured by a standing wave tube method) within the frequency range of 200-2000 Hz, and the material belongs to a first-grade noise reduction and sound absorption material. Holes of the material are highly communicated, and the material has the characteristics of wide pore size distribution range and light weight, and hasa high absorption effect on noise in medium and low frequency bands; and the preparation method has the advantages of simple preparation process, low raw material cost, strong weather resistance, safety, environmental protection and the like.
本发明公开了一种具有优异的中低频吸声性能的轻质陶瓷吸声材料及其制备方法。该方法包括：将煤粉、胶凝剂、分散剂、固体废物、陶瓷原料、无机盐加入溶剂中混合均匀，得到料浆，发泡，注模，烧成，然后浸渍在晶须原料悬浮液中，烧结，得到该材料。该材料的显气孔率为85.6％‑88.5％，容重为0.28‑0.40g/cm3，在200‑2000Hz频率范围内，降噪系数在0.58‑0.65之间(驻波管法测量)，属于一级降噪吸声材料。本发明材料的孔与孔之间高度连通，孔径分布范围广以及轻质的特点，对中低频波段的噪音具有较高的吸收效果；制备工艺简单，原料成本低廉，具有耐候性强，安全环保等优点。
Light ceramic sound absorption material with excellent medium-low frequency sound absorption performance and preparation method thereof
The invention discloses a light ceramic sound absorption material with excellent medium-low frequency sound absorption performance and a preparation method thereof. The method comprises the followingsteps of: adding pulverized coal, a gelatinizing agent, a dispersing agent, solid waste, a ceramic raw material and inorganic salt into a solvent, uniformly mixing to obtain slurry, foaming, carryingout injection molding, firing, dipping the firing product into a whisker raw material suspension, and sintering to obtain the material. The apparent porosity of the material is 85.6%-88.5%, the volumeweight is 0.28-0.40 g/cm<3>, the noise reduction coefficient is 0.58-0.65 (measured by a standing wave tube method) within the frequency range of 200-2000 Hz, and the material belongs to a first-grade noise reduction and sound absorption material. Holes of the material are highly communicated, and the material has the characteristics of wide pore size distribution range and light weight, and hasa high absorption effect on noise in medium and low frequency bands; and the preparation method has the advantages of simple preparation process, low raw material cost, strong weather resistance, safety, environmental protection and the like.
本发明公开了一种具有优异的中低频吸声性能的轻质陶瓷吸声材料及其制备方法。该方法包括：将煤粉、胶凝剂、分散剂、固体废物、陶瓷原料、无机盐加入溶剂中混合均匀，得到料浆，发泡，注模，烧成，然后浸渍在晶须原料悬浮液中，烧结，得到该材料。该材料的显气孔率为85.6％‑88.5％，容重为0.28‑0.40g/cm3，在200‑2000Hz频率范围内，降噪系数在0.58‑0.65之间(驻波管法测量)，属于一级降噪吸声材料。本发明材料的孔与孔之间高度连通，孔径分布范围广以及轻质的特点，对中低频波段的噪音具有较高的吸收效果；制备工艺简单，原料成本低廉，具有耐候性强，安全环保等优点。
Light ceramic sound absorption material with excellent medium-low frequency sound absorption performance and preparation method thereof
一种具有优异的中低频吸声性能的轻质陶瓷吸声材料及其制备方法
SHUI ANZE (author) / HE CHAO (author) / DU BIN (author) / QIAN JUNJIE (author) / XIONG HAO (author) / CAI MEI (author) / ZENG SHENGHUI (author)
2020-12-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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