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A platform for research: civil engineering, architecture and urbanism
Efficient concrete accelerator and preparation method thereof
The invention relates to the field of accelerators, and particularly discloses an efficient concrete accelerator and a preparation method thereof. Comprising the following steps: S1, taking an initiator and water, and uniformly stirring to obtain a solution A; taking acrylic acid, sodium methallyl sulfonate and water, and uniformly stirring to obtain a solution B; a graphene modifier and water are taken, stirred and heated, the solution A and the solution B are dropwise added at the same time, stirring is conducted, pH is adjusted, and an additive is obtained; s2, aluminum sulfate, an additive, zinc sulfate, ferric sulfate, aluminum nitrate, hydroxypropyl methyl cellulose and water are taken and evenly mixed, and the efficient concrete accelerator is obtained; wherein the preparation of the graphene modifier comprises the following steps: dispersing aminated graphene in acetonitrile, adding modified polyethylene glycol ether, potassium carbonate and potassium iodide, reacting, adding a complexing agent and a defoaming agent, and reacting to obtain modified graphene; taking the modified graphene, adding potassium carbonate, dropwise adding an acryloyl chloride solution, stirring, reacting, carrying out suction filtration, and carrying out rotary evaporation to obtain the graphene modifier.
本发明涉及速凝剂领域，具体公开了一种混凝土高效速凝剂及其制备方法；包括以下步骤：S1：取引发剂、水，搅拌均匀得溶液A；取丙烯酸、甲基丙烯磺酸钠、水，搅拌均匀得溶液B；取石墨烯改性剂、水，搅拌加热，同时滴入溶液A、溶液B，搅拌，调pH，得添加剂；S2：取硫酸铝、添加剂、硫酸锌、硫酸铁、硝酸铝、羟丙基甲基纤维素、水，混匀，得混凝土高效速凝剂；其中石墨烯改性剂的制备包括以下步骤：将氨基化石墨烯在乙腈中分散，加入改性聚乙二醇醚、碳酸钾、碘化钾，反应，加入络合剂、消泡剂，反应，得改性石墨烯；取改性石墨烯，加入碳酸钾，滴加丙烯酰氯溶液，搅拌，反应，抽滤，旋蒸，得石墨烯改性剂。
Efficient concrete accelerator and preparation method thereof
The invention relates to the field of accelerators, and particularly discloses an efficient concrete accelerator and a preparation method thereof. Comprising the following steps: S1, taking an initiator and water, and uniformly stirring to obtain a solution A; taking acrylic acid, sodium methallyl sulfonate and water, and uniformly stirring to obtain a solution B; a graphene modifier and water are taken, stirred and heated, the solution A and the solution B are dropwise added at the same time, stirring is conducted, pH is adjusted, and an additive is obtained; s2, aluminum sulfate, an additive, zinc sulfate, ferric sulfate, aluminum nitrate, hydroxypropyl methyl cellulose and water are taken and evenly mixed, and the efficient concrete accelerator is obtained; wherein the preparation of the graphene modifier comprises the following steps: dispersing aminated graphene in acetonitrile, adding modified polyethylene glycol ether, potassium carbonate and potassium iodide, reacting, adding a complexing agent and a defoaming agent, and reacting to obtain modified graphene; taking the modified graphene, adding potassium carbonate, dropwise adding an acryloyl chloride solution, stirring, reacting, carrying out suction filtration, and carrying out rotary evaporation to obtain the graphene modifier.
本发明涉及速凝剂领域，具体公开了一种混凝土高效速凝剂及其制备方法；包括以下步骤：S1：取引发剂、水，搅拌均匀得溶液A；取丙烯酸、甲基丙烯磺酸钠、水，搅拌均匀得溶液B；取石墨烯改性剂、水，搅拌加热，同时滴入溶液A、溶液B，搅拌，调pH，得添加剂；S2：取硫酸铝、添加剂、硫酸锌、硫酸铁、硝酸铝、羟丙基甲基纤维素、水，混匀，得混凝土高效速凝剂；其中石墨烯改性剂的制备包括以下步骤：将氨基化石墨烯在乙腈中分散，加入改性聚乙二醇醚、碳酸钾、碘化钾，反应，加入络合剂、消泡剂，反应，得改性石墨烯；取改性石墨烯，加入碳酸钾，滴加丙烯酰氯溶液，搅拌，反应，抽滤，旋蒸，得石墨烯改性剂。
Efficient concrete accelerator and preparation method thereof
一种混凝土高效速凝剂及其制备方法
WANG ZEPENG (author)
2024-12-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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