Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-temperature-resistant cement paste thixotropic agent and preparation method thereof
The invention relates to the technical field of cement paste thixotropic agents, in particular to a high-temperature-resistant cement paste thixotropic agent and a preparation method thereof.The high-temperature-resistant cement paste thixotropic agent is prepared from nanosilicon dioxide, a polymer and an initiator, the polymer is formed by compounding 2-acrylamide-2-methylpropanesulfonic acid, acrylamide and dimethyl diallyl ammonium chloride, and the high-temperature-resistant cement paste thixotropic agent is obtained according to the following method that firstly, the initiator is added into the nanosilicon dioxide; dissolving the polymer in water, and adjusting the pH value of the obtained polymer solution; then, sequentially adding nano silicon dioxide and an initiator into the polymer solution, and uniformly mixing to obtain slurry; and finally, carrying out a reaction on the slurry under heating. A cement paste system added with the high-temperature-resistant cement paste thixotropic agent has excellent thixotropic performance under the condition of 120 DEG C.
本发明涉及水泥浆触变剂技术领域，是一种抗高温水泥浆触变剂及其制备方法，前者原料包括纳米二氧化硅、聚合物和引发剂，聚合物为2‑丙烯酰胺‑2‑甲基丙磺酸、丙烯酰胺和二甲基二烯丙基氯化铵复配而成，按下述方法得到，首先，将聚合物溶于水中，再调节得到的聚合物溶液的pH值；然后，向聚合物溶液中依次加入纳米二氧化硅和引发剂混匀后，得到浆体；最后，在加热下使浆体发生反应得到。加入本发明抗高温水泥浆触变剂后的水泥浆体系在120℃条件下具备优良的触变性能。
High-temperature-resistant cement paste thixotropic agent and preparation method thereof
The invention relates to the technical field of cement paste thixotropic agents, in particular to a high-temperature-resistant cement paste thixotropic agent and a preparation method thereof.The high-temperature-resistant cement paste thixotropic agent is prepared from nanosilicon dioxide, a polymer and an initiator, the polymer is formed by compounding 2-acrylamide-2-methylpropanesulfonic acid, acrylamide and dimethyl diallyl ammonium chloride, and the high-temperature-resistant cement paste thixotropic agent is obtained according to the following method that firstly, the initiator is added into the nanosilicon dioxide; dissolving the polymer in water, and adjusting the pH value of the obtained polymer solution; then, sequentially adding nano silicon dioxide and an initiator into the polymer solution, and uniformly mixing to obtain slurry; and finally, carrying out a reaction on the slurry under heating. A cement paste system added with the high-temperature-resistant cement paste thixotropic agent has excellent thixotropic performance under the condition of 120 DEG C.
本发明涉及水泥浆触变剂技术领域，是一种抗高温水泥浆触变剂及其制备方法，前者原料包括纳米二氧化硅、聚合物和引发剂，聚合物为2‑丙烯酰胺‑2‑甲基丙磺酸、丙烯酰胺和二甲基二烯丙基氯化铵复配而成，按下述方法得到，首先，将聚合物溶于水中，再调节得到的聚合物溶液的pH值；然后，向聚合物溶液中依次加入纳米二氧化硅和引发剂混匀后，得到浆体；最后，在加热下使浆体发生反应得到。加入本发明抗高温水泥浆触变剂后的水泥浆体系在120℃条件下具备优良的触变性能。
High-temperature-resistant cement paste thixotropic agent and preparation method thereof
抗高温水泥浆触变剂及其制备方法
ZHANG XINWEN (Autor:in) / WANG JUN (Autor:in) / ZHOU SHUANGJUN (Autor:in) / CHEN JIE (Autor:in) / DAI HONG (Autor:in) / TANG YUKE (Autor:in) / ZHANG WUTAO (Autor:in)
15.10.2024
Patent
Elektronische Ressource
Chinesisch
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