Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Gypsum buffer retarder and preparation method thereof
The invention relates to a gypsum buffer retarder and a preparation method thereof, and the gypsum buffer retarder is prepared from sucrose as a blocking agent, a coagulant, an organic acid, a soluble salt retarder of the organic acid, and a protein and derivative retarder of the protein. The cane sugar and the coagulation accelerator are subjected to ball milling, and the coagulation accelerator can provide more crystal nucleuses and improve the hydration speed and the coagulation accelerating efficiency; the cane sugar serves as a blocking agent, the surface of the cane sugar has strong polarity, the cane sugar can wrap the surface of the coagulant after ball milling with the coagulant, and the effect of the coagulant in the early stage can be blocked. Before the operable time of the gypsum buffer retarder in the gypsum mortar, the retarding effect of the organic acid, the soluble salt retarder of the organic acid and the protein and the derivative retarder of the protein is dominant, and after the operable time, the coagulation accelerating effect of the coagulant is dominant. In the gypsum mortar coagulation process, the cane sugar, the coagulant, the organic acid and the soluble salt retarder thereof, and the protein and the derivative retarder thereof act together, so that the fluctuation of the coagulation time of the gypsum mortar product caused by the fluctuation of the coagulation time of the gypsum raw material can be reduced.
本发明涉及一种石膏缓冲缓凝剂及其制备方法，采用蔗糖为阻隔剂，与促凝剂以及有机酸及其可溶盐类缓凝剂、蛋白及其衍生物类缓凝剂一起制备石膏缓冲缓凝剂。蔗糖与促凝剂球磨，促凝剂能提供更多晶核，提高水化速度和促凝效率；蔗糖作为阻隔剂，其表面具很强极性，与促凝剂球磨，会包裹在促凝剂表面，能阻隔促凝剂在前期的效果。石膏缓冲缓凝剂在石膏砂浆中的可操作时间之前，有机酸及其可溶盐类缓凝剂和蛋白及其衍生物类缓凝剂的缓凝作用占主导，可操作时间之后，促凝剂的促凝占主导。石膏砂浆凝结过程中，蔗糖、促凝剂、有机酸及其可溶盐类缓凝剂和蛋白及其衍生物类缓凝剂共同作用，能降低石膏原料凝结时间波动带来的石膏砂浆产品凝结时间的波动。
Gypsum buffer retarder and preparation method thereof
The invention relates to a gypsum buffer retarder and a preparation method thereof, and the gypsum buffer retarder is prepared from sucrose as a blocking agent, a coagulant, an organic acid, a soluble salt retarder of the organic acid, and a protein and derivative retarder of the protein. The cane sugar and the coagulation accelerator are subjected to ball milling, and the coagulation accelerator can provide more crystal nucleuses and improve the hydration speed and the coagulation accelerating efficiency; the cane sugar serves as a blocking agent, the surface of the cane sugar has strong polarity, the cane sugar can wrap the surface of the coagulant after ball milling with the coagulant, and the effect of the coagulant in the early stage can be blocked. Before the operable time of the gypsum buffer retarder in the gypsum mortar, the retarding effect of the organic acid, the soluble salt retarder of the organic acid and the protein and the derivative retarder of the protein is dominant, and after the operable time, the coagulation accelerating effect of the coagulant is dominant. In the gypsum mortar coagulation process, the cane sugar, the coagulant, the organic acid and the soluble salt retarder thereof, and the protein and the derivative retarder thereof act together, so that the fluctuation of the coagulation time of the gypsum mortar product caused by the fluctuation of the coagulation time of the gypsum raw material can be reduced.
本发明涉及一种石膏缓冲缓凝剂及其制备方法，采用蔗糖为阻隔剂，与促凝剂以及有机酸及其可溶盐类缓凝剂、蛋白及其衍生物类缓凝剂一起制备石膏缓冲缓凝剂。蔗糖与促凝剂球磨，促凝剂能提供更多晶核，提高水化速度和促凝效率；蔗糖作为阻隔剂，其表面具很强极性，与促凝剂球磨，会包裹在促凝剂表面，能阻隔促凝剂在前期的效果。石膏缓冲缓凝剂在石膏砂浆中的可操作时间之前，有机酸及其可溶盐类缓凝剂和蛋白及其衍生物类缓凝剂的缓凝作用占主导，可操作时间之后，促凝剂的促凝占主导。石膏砂浆凝结过程中，蔗糖、促凝剂、有机酸及其可溶盐类缓凝剂和蛋白及其衍生物类缓凝剂共同作用，能降低石膏原料凝结时间波动带来的石膏砂浆产品凝结时间的波动。
Gypsum buffer retarder and preparation method thereof
石膏缓冲缓凝剂及其制备方法
WANG YIZHEN (Autor:in) / AO YAOZHEN (Autor:in) / WU YONGWEN (Autor:in)
14.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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