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A platform for research: civil engineering, architecture and urbanism
Cement-based porous material for online carbon sequestration of cement kiln and preparation method of cement-based porous material
The invention relates to the technical field of cement-based porous materials, and discloses a cement-based porous material for online carbon sequestration of a cement kiln and a preparation method of the cement-based porous material. The method comprises the following steps: adding modified nano sol formed by a siliceous nano material grafted with polyether polyol or an aluminum nano material grafted with polyether polyol in the preparation process of cement-based slurry, so that the cement-based slurry is quickly thickened, and meanwhile, foam is broken by ether groups in porous material foam slurry; therefore, foam structures which are communicated with one another are quickly formed in the porous material foam slurry; a large number of micro-nano communicating hole spaces can be constructed in a foam structure, so that internal communicating holes of a sample added with the modified nano sol are increased, and the average pore size is reduced; the prepared cement-based porous material has relatively good carbon sequestration capability and CO2 storage capability, micro-nano communicated pore spaces in the cement-based porous material are not damaged by a common drying process, and properties such as strength are also improved to a certain extent.
本发明涉及水泥基多孔材料技术领域，公开了一种用于水泥窑在线固碳的水泥基多孔材料及其制备方法，通过在水泥基浆体制备过程中添加了枝接有聚醚多元醇的硅质纳米材料或枝接有聚醚多元醇的铝质纳米材料形成的改性纳米溶胶，使水泥基浆体快速稠化，同时醚基在多孔材料泡沫浆料中使泡沫破裂，从而在多孔材料泡沫浆料中快速形成相互连通的泡孔结构；而且能够在泡孔结构中构筑出大量微纳米联通孔空间，使得添加改性纳米溶胶的样品内部联通孔隙增多、平均孔径减小；所制得的水泥基多孔材料具有较好的固碳能力及CO2封存能力，且水泥基多孔材料中的微纳米联通孔空间不受普通干燥过程的破坏，强度等性能也得到了一定的提升。
Cement-based porous material for online carbon sequestration of cement kiln and preparation method of cement-based porous material
The invention relates to the technical field of cement-based porous materials, and discloses a cement-based porous material for online carbon sequestration of a cement kiln and a preparation method of the cement-based porous material. The method comprises the following steps: adding modified nano sol formed by a siliceous nano material grafted with polyether polyol or an aluminum nano material grafted with polyether polyol in the preparation process of cement-based slurry, so that the cement-based slurry is quickly thickened, and meanwhile, foam is broken by ether groups in porous material foam slurry; therefore, foam structures which are communicated with one another are quickly formed in the porous material foam slurry; a large number of micro-nano communicating hole spaces can be constructed in a foam structure, so that internal communicating holes of a sample added with the modified nano sol are increased, and the average pore size is reduced; the prepared cement-based porous material has relatively good carbon sequestration capability and CO2 storage capability, micro-nano communicated pore spaces in the cement-based porous material are not damaged by a common drying process, and properties such as strength are also improved to a certain extent.
本发明涉及水泥基多孔材料技术领域，公开了一种用于水泥窑在线固碳的水泥基多孔材料及其制备方法，通过在水泥基浆体制备过程中添加了枝接有聚醚多元醇的硅质纳米材料或枝接有聚醚多元醇的铝质纳米材料形成的改性纳米溶胶，使水泥基浆体快速稠化，同时醚基在多孔材料泡沫浆料中使泡沫破裂，从而在多孔材料泡沫浆料中快速形成相互连通的泡孔结构；而且能够在泡孔结构中构筑出大量微纳米联通孔空间，使得添加改性纳米溶胶的样品内部联通孔隙增多、平均孔径减小；所制得的水泥基多孔材料具有较好的固碳能力及CO2封存能力，且水泥基多孔材料中的微纳米联通孔空间不受普通干燥过程的破坏，强度等性能也得到了一定的提升。
Cement-based porous material for online carbon sequestration of cement kiln and preparation method of cement-based porous material
一种用于水泥窑在线固碳的水泥基多孔材料及其制备方法
JIANG JUN (author) / LU ZHONGYUAN (author) / LI JUN (author) / ZENG HAOLUN (author)
2024-02-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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Preparation method of cement-based material for realizing carbon sequestration and utilization
| European Patent Office | 2024