Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Artificial pumice stone and preparation method thereof
The invention provides an artificial pumice stone and a preparation method thereof, and belongs to the technical field of artificial pumice stones. Foaming is carried out at the temperature of 160-200 DEG C, the organic foaming agent, the inorganic foaming agent and the foaming promoter can generate a large number of bubbles, and a large number of air holes and gaps are formed in the material; in the sintering process, the guiding agent guides accumulation bridging among molecules through a biphenyl structure, a quaternary ammonium group and a biphenyl center provide alkyl linkage which is long enough, capillary self-assembly is guided in a gap, so that a main material is changed into a tubular structure from a layered structure, and the service life of the main material is prolonged. Open air holes can be formed in the material, and capillary tubes communicating the air holes in the material to the surface of the material are arranged through pipelines, so that the effective porosity and water permeability of the artificial pumice stone are improved; by adopting the gas retaining agent, the material can be wrapped, and bubbles generated during foaming are prevented from escaping quickly, so that the effective porosity is improved; the micro-pores and capillary channels of the artificial pumice stone can be further strengthened through activation, and the effective porosity and water permeability are improved.
本发明提供了一种人造浮石及其制备方法，属于人造浮石技术领域。本发明在160～200℃下进行发泡，有机发泡剂、无机发泡剂和发泡助剂会产生大量的气泡，在材料内部形成大量的气孔和缝隙；在烧结过程中导向剂通过联苯结构引导分子之间堆积桥接，季铵基团和联苯中心提供足够长的烷基链接，在缝隙中引导毛细管自组装，使得主料从层状结构变为管状结构，能够在材料内部形成开口气孔并有贯穿管道连通材料内部气孔至材料表面的毛细管，从而提高人造浮石的有效孔隙率和透水性；通过采用保气剂，能够包裹材料，防止发泡时产生的气泡快速逸出，从而提高有效孔隙率；通过活化能够进一步强化人造浮石的微气孔和毛细管道，提高有效孔隙率和透水性。
Artificial pumice stone and preparation method thereof
The invention provides an artificial pumice stone and a preparation method thereof, and belongs to the technical field of artificial pumice stones. Foaming is carried out at the temperature of 160-200 DEG C, the organic foaming agent, the inorganic foaming agent and the foaming promoter can generate a large number of bubbles, and a large number of air holes and gaps are formed in the material; in the sintering process, the guiding agent guides accumulation bridging among molecules through a biphenyl structure, a quaternary ammonium group and a biphenyl center provide alkyl linkage which is long enough, capillary self-assembly is guided in a gap, so that a main material is changed into a tubular structure from a layered structure, and the service life of the main material is prolonged. Open air holes can be formed in the material, and capillary tubes communicating the air holes in the material to the surface of the material are arranged through pipelines, so that the effective porosity and water permeability of the artificial pumice stone are improved; by adopting the gas retaining agent, the material can be wrapped, and bubbles generated during foaming are prevented from escaping quickly, so that the effective porosity is improved; the micro-pores and capillary channels of the artificial pumice stone can be further strengthened through activation, and the effective porosity and water permeability are improved.
本发明提供了一种人造浮石及其制备方法，属于人造浮石技术领域。本发明在160～200℃下进行发泡，有机发泡剂、无机发泡剂和发泡助剂会产生大量的气泡，在材料内部形成大量的气孔和缝隙；在烧结过程中导向剂通过联苯结构引导分子之间堆积桥接，季铵基团和联苯中心提供足够长的烷基链接，在缝隙中引导毛细管自组装，使得主料从层状结构变为管状结构，能够在材料内部形成开口气孔并有贯穿管道连通材料内部气孔至材料表面的毛细管，从而提高人造浮石的有效孔隙率和透水性；通过采用保气剂，能够包裹材料，防止发泡时产生的气泡快速逸出，从而提高有效孔隙率；通过活化能够进一步强化人造浮石的微气孔和毛细管道，提高有效孔隙率和透水性。
Artificial pumice stone and preparation method thereof
一种人造浮石及其制备方法
XIAO AN (Autor:in) / AN DAIZONG (Autor:in)
13.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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