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Coupling agent modified nano hydrated calcium silicate crystal nucleus early strength agent and preparation method thereof
The invention discloses a coupling agent modified nano hydrated calcium silicate crystal nucleus early strength agent and a preparation method. The coupling agent modified nano hydrated calcium silicate crystal nucleus early strength agent comprises the following components in percentage by mass: 1-10% of dispersing agent, 0.05-1% of coupling agent, 5-30% of hydrated CSH synthesized from a soluble calcium source and a soluble silicon source through solution precipitation, adn the balance of deionized water. The molar ratio of calcium to silicon is 0.5-2.0. The preparation method comprises the following steps of taking an aqueous solution of a polycarboxylic acid dispersing agent and a silane coupling agent as a base material, and simultaneously dropwise adding a soluble calcium source aqueous solution and a soluble silicon source aqueous solution into the base material to obtain the nano calcium silicate hydrate crystal nucleus early strength agent. The coupling agent modified nano hydrated calcium silicate crystal nucleus early strength agent can quickly promote cement hydration and shorten the setting time, the hour strength of concrete is greatly improved, and the middle and later strength is slightly improved. The method is suitable for different rubber material systems and different temperature conditions.
本发明公开了一种偶联剂改性纳米水化硅酸钙晶核早强剂和制备方法，所述偶联剂改性纳米水化硅酸钙晶核早强剂，包括分散剂质量占比为1％～10％份，偶联剂的质量占比为0.05％～1％，可溶性钙源和可溶性硅源通过溶液沉淀合成的水化CSH质量份数为5％～30％份，其余为去离子水，其中钙硅摩尔比为0.5～2.0。制备方法为：以聚羧酸分散剂、硅烷偶联剂的水溶液为底料，同时向底料中滴加可溶性钙源水溶液和可溶性硅源水溶液，得到纳米水化硅酸钙晶核早强剂。偶联剂改性纳米水化硅酸钙晶核早强剂能迅速促进水泥水化，缩短凝结时间，混凝土小时强度大幅提升，中、后期强度小幅度提升。适用于不同胶材体系、不同温度条件。
Coupling agent modified nano hydrated calcium silicate crystal nucleus early strength agent and preparation method thereof
The invention discloses a coupling agent modified nano hydrated calcium silicate crystal nucleus early strength agent and a preparation method. The coupling agent modified nano hydrated calcium silicate crystal nucleus early strength agent comprises the following components in percentage by mass: 1-10% of dispersing agent, 0.05-1% of coupling agent, 5-30% of hydrated CSH synthesized from a soluble calcium source and a soluble silicon source through solution precipitation, adn the balance of deionized water. The molar ratio of calcium to silicon is 0.5-2.0. The preparation method comprises the following steps of taking an aqueous solution of a polycarboxylic acid dispersing agent and a silane coupling agent as a base material, and simultaneously dropwise adding a soluble calcium source aqueous solution and a soluble silicon source aqueous solution into the base material to obtain the nano calcium silicate hydrate crystal nucleus early strength agent. The coupling agent modified nano hydrated calcium silicate crystal nucleus early strength agent can quickly promote cement hydration and shorten the setting time, the hour strength of concrete is greatly improved, and the middle and later strength is slightly improved. The method is suitable for different rubber material systems and different temperature conditions.
本发明公开了一种偶联剂改性纳米水化硅酸钙晶核早强剂和制备方法，所述偶联剂改性纳米水化硅酸钙晶核早强剂，包括分散剂质量占比为1％～10％份，偶联剂的质量占比为0.05％～1％，可溶性钙源和可溶性硅源通过溶液沉淀合成的水化CSH质量份数为5％～30％份，其余为去离子水，其中钙硅摩尔比为0.5～2.0。制备方法为：以聚羧酸分散剂、硅烷偶联剂的水溶液为底料，同时向底料中滴加可溶性钙源水溶液和可溶性硅源水溶液，得到纳米水化硅酸钙晶核早强剂。偶联剂改性纳米水化硅酸钙晶核早强剂能迅速促进水泥水化，缩短凝结时间，混凝土小时强度大幅提升，中、后期强度小幅度提升。适用于不同胶材体系、不同温度条件。
Coupling agent modified nano hydrated calcium silicate crystal nucleus early strength agent and preparation method thereof
一种偶联剂改性纳米水化硅酸钙晶核早强剂及其制备方法
WANG XUECHUAN (author) / QIAN SHANSHAN (author) / LU TONG (author) / ZHAO XU (author) / PENG JINYING (author) / QU HAOJIE (author) / YU PENGCHENG (author) / ZHENG CHUNYANG (author)
2021-05-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2023
| European Patent Office | 2020
Nano calcium silicate hydrate crystal nucleus early strength agent and preparation method thereof
| European Patent Office | 2022
| European Patent Office | 2023