Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of concrete defoaming agent for municipal engineering construction
The invention relates to the technical field of defoaming agents, and discloses a preparation method of a concrete defoaming agent for municipal engineering construction, and the preparation method comprises the following steps: S1, preparing a stock solution: carrying out vacuum distillation on 4-6 parts of 4% low-hydrogen-content siloxane and 0.5-1 part of 12% glycosyl-containing acrylate compounds until the water content is 0.1% or below to obtain the stock solution; and S2, preparing a mixed solution, adding a solvent isopropanol and a polymerization inhibitor hydroquinone into the stock solution in the S1, heating to 50 DEG C, and adding a catalyst. According to the present invention, with the glycosyl-containing acrylate compound, the defoaming agent has excellent emulsifying property, the generation of the foam can be prevented through the nitrogen protection, and the concrete defoaming agent has characteristics of no demulsification, no floating oil and strong defoaming through mixing and heating.
本发明涉及消泡剂技术领域，且公开了一种市政工程建设用混凝土消泡剂的制备方法，包括以下步骤：S1：制备储备液，将4‑6份4％的低含氢量的硅氧烷与0.5‑1份12％含糖基的丙烯酸酯类化合物真空蒸馏到含水量在0.1％以下，得到储备液；S2：制备混合液，向S1中的储备液中加入溶剂异丙醇，阻聚剂对苯二酚，升温至50℃时加入催化剂。本发明不仅能够通过含糖基的丙烯酸酯类化合物使消泡剂具有优良的乳化性能，同时能够通过氮气保护防止泡沫产生，还能够通过混合升温使混凝土消泡剂不破乳、不漂油、消泡较强。
Preparation method of concrete defoaming agent for municipal engineering construction
The invention relates to the technical field of defoaming agents, and discloses a preparation method of a concrete defoaming agent for municipal engineering construction, and the preparation method comprises the following steps: S1, preparing a stock solution: carrying out vacuum distillation on 4-6 parts of 4% low-hydrogen-content siloxane and 0.5-1 part of 12% glycosyl-containing acrylate compounds until the water content is 0.1% or below to obtain the stock solution; and S2, preparing a mixed solution, adding a solvent isopropanol and a polymerization inhibitor hydroquinone into the stock solution in the S1, heating to 50 DEG C, and adding a catalyst. According to the present invention, with the glycosyl-containing acrylate compound, the defoaming agent has excellent emulsifying property, the generation of the foam can be prevented through the nitrogen protection, and the concrete defoaming agent has characteristics of no demulsification, no floating oil and strong defoaming through mixing and heating.
本发明涉及消泡剂技术领域，且公开了一种市政工程建设用混凝土消泡剂的制备方法，包括以下步骤：S1：制备储备液，将4‑6份4％的低含氢量的硅氧烷与0.5‑1份12％含糖基的丙烯酸酯类化合物真空蒸馏到含水量在0.1％以下，得到储备液；S2：制备混合液，向S1中的储备液中加入溶剂异丙醇，阻聚剂对苯二酚，升温至50℃时加入催化剂。本发明不仅能够通过含糖基的丙烯酸酯类化合物使消泡剂具有优良的乳化性能，同时能够通过氮气保护防止泡沫产生，还能够通过混合升温使混凝土消泡剂不破乳、不漂油、消泡较强。
Preparation method of concrete defoaming agent for municipal engineering construction
一种市政工程建设用混凝土消泡剂的制备方法
LIN JIANMING (Autor:in) / XU SHUNXIN (Autor:in) / HUANG CHUBIN (Autor:in) / WANG KUNMENG (Autor:in) / ZHU WENBO (Autor:in)
08.10.2021
Patent
Elektronische Ressource
Chinesisch
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