A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of special retarder for magnesium phosphate cement
The invention discloses a preparation method of a special retarder for magnesium phosphate cement, and belongs to the technical field of additives. The retarder comprises the following components in percentage by mass: (1) a retarding component: 10-30% of lactate, 10-30% of glycinate and 10-30% of folinate; (2) 20-40% of a porous carrier; (3) 20-30% of a dispersant; the sum of the components is 100%. The preparation method comprises the following steps: 1) dissolving; 2) adsorption; and 3) dispersing. According to the invention, by utilizing the characteristics of many pore channels and large specific surface area of a porous carrier, the retarder with a slow-release function is prepared by bearing delayed coagulation components through a physical adsorption effect, and the retarder is applied to magnesium phosphate cement, so that the setting time of the magnesium phosphate cement can be obviously prolonged, and the development of early and later strength is considered.
一种磷酸镁水泥专用缓凝剂的制备方法，属于外加剂技术领域。该缓凝剂按质量百分比包括以下组分：(1)缓凝成分：乳酸盐10‑30％、甘氨酸盐10‑30％、亚叶酸盐10‑30％；(2)多孔载体20‑40％；(3)分散剂20‑30％；上述组分之和为100％。其制备步骤包括：1)溶解；2)吸附；3)分散。本发明利用多孔载体孔道多和比表面积大的特点，通过物理吸附作用承载缓凝成分，制备出具有缓释功能的缓凝剂，并将其应用于磷酸镁水泥，能够显著延长磷酸镁水泥的凝结时间，并且兼顾其早期和后期强度的发展。
Preparation method of special retarder for magnesium phosphate cement
The invention discloses a preparation method of a special retarder for magnesium phosphate cement, and belongs to the technical field of additives. The retarder comprises the following components in percentage by mass: (1) a retarding component: 10-30% of lactate, 10-30% of glycinate and 10-30% of folinate; (2) 20-40% of a porous carrier; (3) 20-30% of a dispersant; the sum of the components is 100%. The preparation method comprises the following steps: 1) dissolving; 2) adsorption; and 3) dispersing. According to the invention, by utilizing the characteristics of many pore channels and large specific surface area of a porous carrier, the retarder with a slow-release function is prepared by bearing delayed coagulation components through a physical adsorption effect, and the retarder is applied to magnesium phosphate cement, so that the setting time of the magnesium phosphate cement can be obviously prolonged, and the development of early and later strength is considered.
一种磷酸镁水泥专用缓凝剂的制备方法，属于外加剂技术领域。该缓凝剂按质量百分比包括以下组分：(1)缓凝成分：乳酸盐10‑30％、甘氨酸盐10‑30％、亚叶酸盐10‑30％；(2)多孔载体20‑40％；(3)分散剂20‑30％；上述组分之和为100％。其制备步骤包括：1)溶解；2)吸附；3)分散。本发明利用多孔载体孔道多和比表面积大的特点，通过物理吸附作用承载缓凝成分，制备出具有缓释功能的缓凝剂，并将其应用于磷酸镁水泥，能够显著延长磷酸镁水泥的凝结时间，并且兼顾其早期和后期强度的发展。
Preparation method of special retarder for magnesium phosphate cement
一种磷酸镁水泥专用缓凝剂的制备方法
LI YUE (author) / WANG QIU'AO (author) / LIN HUI (author) / JIN CAIYUN (author)
2023-12-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Retarder for magnesium phosphate cement and use method thereof
| European Patent Office | 2021
| European Patent Office | 2024
Composite retarder and application thereof in magnesium phosphate cement-based material
| European Patent Office | 2024
| European Patent Office | 2021