Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Wall flow type honeycomb ceramic filter with adjustable porosity and preparation process thereof
The invention discloses a porosity-adjustable wall flow type honeycomb ceramic filter, which comprises cordierite, a binder, a lubricant and a pore-forming agent, the pore-forming agent is composed of a special pore-forming agent accounting for 40-70% of the total amount of the pore-forming agent and a conventional pore-forming agent accounting for 30-60% of the total amount of the pore-forming agent, the special pore-forming agent and the conventional pore-forming agent account for 100% of the total amount of the pore-forming agent, the binder accounts for 40-70% of the total amount of the pore-forming agent, and the lubricant accounts for 30-60% of the total amount of the pore-forming agent. The special pore-forming agent adopts water-absorbent resin with the water content larger than 50%, and every 1% of the water-absorbent resin replaces 5-10% of the total amount of the pore-forming agent. The invention also discloses a preparation process of the wall flow type honeycomb ceramic filter, which comprises the following steps: mixing all the materials, adding a certain ratio of water as required, molding to form a green body, and drying by microwaves to obtain a firing-free product with required porosity. By adopting the design scheme of the invention, the wall flow type honeycomb ceramic filter with different porosity can be formed through the matching of the special pore-forming agent, the water and the firing curve.
本发明公开了一种气孔率可调节的壁流式蜂窝陶瓷过滤器，包括堇青石、粘结剂、润滑剂和造孔剂，所述造孔剂由占造孔剂总量的40～70％的特殊造孔剂及30～60％的常规造孔剂构成，特殊造孔剂和常规造孔剂占造孔剂总量的100％，其中，特殊造孔剂采用含水量＞50％的吸水树脂，吸水树脂的每1％替代造孔剂总量的5～10％。本发明还公开了此种壁流式蜂窝陶瓷过滤器的制备工艺，将所有的材料混合，根据需要加入一定比率的水，塑型形成坯体后通过微波烘干，即得到免烧制的所需气孔率的产品。采用本发明的设计方案，能够通过特殊造孔剂和水以及烧成曲线的配合，形成不同气孔率的壁流式蜂窝陶瓷过滤器。
Wall flow type honeycomb ceramic filter with adjustable porosity and preparation process thereof
The invention discloses a porosity-adjustable wall flow type honeycomb ceramic filter, which comprises cordierite, a binder, a lubricant and a pore-forming agent, the pore-forming agent is composed of a special pore-forming agent accounting for 40-70% of the total amount of the pore-forming agent and a conventional pore-forming agent accounting for 30-60% of the total amount of the pore-forming agent, the special pore-forming agent and the conventional pore-forming agent account for 100% of the total amount of the pore-forming agent, the binder accounts for 40-70% of the total amount of the pore-forming agent, and the lubricant accounts for 30-60% of the total amount of the pore-forming agent. The special pore-forming agent adopts water-absorbent resin with the water content larger than 50%, and every 1% of the water-absorbent resin replaces 5-10% of the total amount of the pore-forming agent. The invention also discloses a preparation process of the wall flow type honeycomb ceramic filter, which comprises the following steps: mixing all the materials, adding a certain ratio of water as required, molding to form a green body, and drying by microwaves to obtain a firing-free product with required porosity. By adopting the design scheme of the invention, the wall flow type honeycomb ceramic filter with different porosity can be formed through the matching of the special pore-forming agent, the water and the firing curve.
本发明公开了一种气孔率可调节的壁流式蜂窝陶瓷过滤器，包括堇青石、粘结剂、润滑剂和造孔剂，所述造孔剂由占造孔剂总量的40～70％的特殊造孔剂及30～60％的常规造孔剂构成，特殊造孔剂和常规造孔剂占造孔剂总量的100％，其中，特殊造孔剂采用含水量＞50％的吸水树脂，吸水树脂的每1％替代造孔剂总量的5～10％。本发明还公开了此种壁流式蜂窝陶瓷过滤器的制备工艺，将所有的材料混合，根据需要加入一定比率的水，塑型形成坯体后通过微波烘干，即得到免烧制的所需气孔率的产品。采用本发明的设计方案，能够通过特殊造孔剂和水以及烧成曲线的配合，形成不同气孔率的壁流式蜂窝陶瓷过滤器。
Wall flow type honeycomb ceramic filter with adjustable porosity and preparation process thereof
气孔率可调节的壁流式蜂窝陶瓷过滤器及其制备工艺
SHEN QINJUAN (Autor:in) / LIANG RUI (Autor:in) / CAI KAI (Autor:in)
25.10.2022
Patent
Elektronische Ressource
Chinesisch
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