Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Multi-scale porous carbon-based microspheres and preparation method thereof
The invention belongs to the technical field of refractory materials, and discloses a multi-scale porous carbon-based microsphere and a preparation method thereof.The preparation method comprises the steps that walnut shell powder, metal aluminum powder and an additive are ground into fine powder to prepare a premix, polystyrene spheres serve as spherical supporting bodies, a silica sol solution is added, molding and screening are conducted in a pelletizer, and then drying, heat treatment and other steps are conducted to prepare the multi-scale porous carbon-based microsphere. The multi-scale pore carbon-based microspheres are synthesized at a low temperature, and Sialon-SiC composite ceramic phases can be generated in situ in carbon skeleton pores formed in the walnut shell powder to fill part of the pores, so that pores with different scales are formed. The preparation method adopts cheap and easily available raw materials, and has the characteristics of low cost and simple preparation process, and the prepared multi-scale porous carbon microspheres have excellent high temperature resistance.
本发明属于耐火材料技术领域，公开了一种多尺度孔碳基微球及其制备方法，本发明通过将核桃壳粉、金属铝粉和添加剂，磨成细粉制得预混料，以聚苯乙烯球为球形支撑体，加入硅溶胶溶液，在造粒机中成型、过筛，后经过干燥、热处理等步骤，低温合成多尺度孔碳基微球，在核桃壳粉形成碳骨架孔洞中会原位生成Sialon‑SiC复合陶瓷相，填充部分气孔，从而形成了不同尺度的孔。本发明采用廉价易获得的原料，具有成本低、制备工艺简单的特点，所制备的多尺度孔碳微球有着优异的耐高温性能。
Multi-scale porous carbon-based microspheres and preparation method thereof
The invention belongs to the technical field of refractory materials, and discloses a multi-scale porous carbon-based microsphere and a preparation method thereof.The preparation method comprises the steps that walnut shell powder, metal aluminum powder and an additive are ground into fine powder to prepare a premix, polystyrene spheres serve as spherical supporting bodies, a silica sol solution is added, molding and screening are conducted in a pelletizer, and then drying, heat treatment and other steps are conducted to prepare the multi-scale porous carbon-based microsphere. The multi-scale pore carbon-based microspheres are synthesized at a low temperature, and Sialon-SiC composite ceramic phases can be generated in situ in carbon skeleton pores formed in the walnut shell powder to fill part of the pores, so that pores with different scales are formed. The preparation method adopts cheap and easily available raw materials, and has the characteristics of low cost and simple preparation process, and the prepared multi-scale porous carbon microspheres have excellent high temperature resistance.
本发明属于耐火材料技术领域，公开了一种多尺度孔碳基微球及其制备方法，本发明通过将核桃壳粉、金属铝粉和添加剂，磨成细粉制得预混料，以聚苯乙烯球为球形支撑体，加入硅溶胶溶液，在造粒机中成型、过筛，后经过干燥、热处理等步骤，低温合成多尺度孔碳基微球，在核桃壳粉形成碳骨架孔洞中会原位生成Sialon‑SiC复合陶瓷相，填充部分气孔，从而形成了不同尺度的孔。本发明采用廉价易获得的原料，具有成本低、制备工艺简单的特点，所制备的多尺度孔碳微球有着优异的耐高温性能。
Multi-scale porous carbon-based microspheres and preparation method thereof
一种多尺度孔碳基微球及其制备方法
YIN CHAOFAN (Autor:in) / ZHAI SHENGHUI (Autor:in) / PENG KAI (Autor:in) / WANG LI (Autor:in) / DONG BINBIN (Autor:in)
16.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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