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A platform for research: civil engineering, architecture and urbanism
Cordierite ceramic carrier and preparation method thereof
The invention relates to a cordierite ceramic carrier and a preparation method thereof, and belongs to the technical field of automobile exhaust treatment. The method comprises the steps that raw materials are subjected to dry mixing to obtain a dry material, and the raw materials comprise, by mass, 8-16 parts of raw kaolin, 0-25 parts of calcined kaolin, 39-41 parts of talc, 8-22 parts of aluminum oxide and 4-15 parts of silicon dioxide; mixing an auxiliary agent with a solvent to obtain a wet material; kneading the dry material and the wet material to obtain a mixture; carrying out extrusion forming on the mixture to obtain a blank; the blank is dried and then roasted, and the cordierite ceramic carrier is obtained; by selecting specific raw materials, the prepared cordierite ceramic carrier has a relatively low thermal expansion coefficient, the linear expansion coefficient of the cordierite ceramic carrier is 0.17 * 10 <-6 >-0.28 * 10 <-6 > DEG C <-1 >, the thermal shock resistance temperature of the cordierite ceramic carrier is greater than 800 DEG C, the softening temperature of the cordierite ceramic carrier is greater than 1480 DEG C, the cordierite phase is greater than or equal to 93%, and the cordierite ceramic carrier has relatively good comprehensive performance. The raw materials of the method are easy to obtain, and the method is suitable for industrial batch production.
本申请涉及一种堇青石陶瓷载体及其制备方法，属于汽车尾气处理技术领域；方法包括：将原料进行干混，得到干料，所述原料以质量分数计包括生高岭土8～16份、煅烧高岭土0～25份、滑石39～41份、氧化铝8～22份和二氧化硅4～15份；将助剂混合于溶剂，得到湿料；将所述干料和所述湿料进行捏合，得到混合料；将所述混合料进行挤压成型，得到料坯；对所述料坯进行干燥，后进行焙烧，得到堇青石陶瓷载体；通过选用特定的原料，使得制得堇青石陶瓷载体具有较低的热膨胀系数，其线性膨胀系数在0.17*10‑6～0.28*10‑6℃‑1，耐热冲击温度大于800℃、软化温度大于1480℃、堇青石相≥93％，具备较好的综合性能。且该方法的原料易得，适合工业化批量生产。
Cordierite ceramic carrier and preparation method thereof
The invention relates to a cordierite ceramic carrier and a preparation method thereof, and belongs to the technical field of automobile exhaust treatment. The method comprises the steps that raw materials are subjected to dry mixing to obtain a dry material, and the raw materials comprise, by mass, 8-16 parts of raw kaolin, 0-25 parts of calcined kaolin, 39-41 parts of talc, 8-22 parts of aluminum oxide and 4-15 parts of silicon dioxide; mixing an auxiliary agent with a solvent to obtain a wet material; kneading the dry material and the wet material to obtain a mixture; carrying out extrusion forming on the mixture to obtain a blank; the blank is dried and then roasted, and the cordierite ceramic carrier is obtained; by selecting specific raw materials, the prepared cordierite ceramic carrier has a relatively low thermal expansion coefficient, the linear expansion coefficient of the cordierite ceramic carrier is 0.17 * 10 <-6 >-0.28 * 10 <-6 > DEG C <-1 >, the thermal shock resistance temperature of the cordierite ceramic carrier is greater than 800 DEG C, the softening temperature of the cordierite ceramic carrier is greater than 1480 DEG C, the cordierite phase is greater than or equal to 93%, and the cordierite ceramic carrier has relatively good comprehensive performance. The raw materials of the method are easy to obtain, and the method is suitable for industrial batch production.
本申请涉及一种堇青石陶瓷载体及其制备方法，属于汽车尾气处理技术领域；方法包括：将原料进行干混，得到干料，所述原料以质量分数计包括生高岭土8～16份、煅烧高岭土0～25份、滑石39～41份、氧化铝8～22份和二氧化硅4～15份；将助剂混合于溶剂，得到湿料；将所述干料和所述湿料进行捏合，得到混合料；将所述混合料进行挤压成型，得到料坯；对所述料坯进行干燥，后进行焙烧，得到堇青石陶瓷载体；通过选用特定的原料，使得制得堇青石陶瓷载体具有较低的热膨胀系数，其线性膨胀系数在0.17*10‑6～0.28*10‑6℃‑1，耐热冲击温度大于800℃、软化温度大于1480℃、堇青石相≥93％，具备较好的综合性能。且该方法的原料易得，适合工业化批量生产。
Cordierite ceramic carrier and preparation method thereof
一种堇青石陶瓷载体及其制备方法
WU XU (author) / HUANG SHUO (author) / XIONG FEN (author) / GAO XIANGDA (author) / ZHAO HAOYUAN (author)
2024-12-13
Patent
Electronic Resource
Chinese
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