Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Special normal-temperature polycarboxylic acid type water reducing agent for beta-type semi-hydrated gypsum and preparation method of special normal-temperature polycarboxylic acid type water reducing agent
The invention discloses a special normal-temperature polycarboxylate-type water reducer for beta-type semi-hydrated gypsum and a preparation method of the special normal-temperature polycarboxylate-type water reducer, and belongs to the technical field of cement admixture materials. The water reducing agent is prepared from the following raw materials in parts by weight: 60 parts of ethylene glycol monovinyl polyethylene glycol ether, 5.6 to 8 parts of acrylic acid, 1.2 to 3.6 parts of functional monomer, 3 to 3.2 parts of oxidant, 1.5 to 1.6 parts of reducing agent and 1.8 to 2.1 parts of molecular weight regulator. By improving the formula, the water-reducing rate of the gypsum and the slurry fluidity are improved, the strength is improved due to the reduction of water consumption, and meanwhile, the problem of poor adaptability of an existing admixture to a gypsum system is solved. The polycarboxylate superplasticizer disclosed by the invention can fully react at normal temperature, is simple in operation equipment and production process, and has a wide application prospect.
本发明公开一种β型半水石膏专用常温聚羧酸系减水剂及其制备方法，属于水泥外加剂材料技术领域。本发明减水剂包括以下重量份的原料制备而成：乙二醇单乙烯基聚乙二醇醚60份、丙烯酸5.6‑8份、功能单体1.2‑3.6份、氧化剂3‑3.2份、还原剂1.5‑1.6份、分子量调节剂1.8‑2.1份。本发明通过改进配方，提高了石膏的减水率以及浆体流动度，用水量的减少导致强度提高，同时弥补了现有外加剂对石膏体系的适应性差的问题。本发明的聚羧酸减水剂在常温下就可以充分反应，操作设备和生产工艺简单，具有广阔的应用前景。
Special normal-temperature polycarboxylic acid type water reducing agent for beta-type semi-hydrated gypsum and preparation method of special normal-temperature polycarboxylic acid type water reducing agent
The invention discloses a special normal-temperature polycarboxylate-type water reducer for beta-type semi-hydrated gypsum and a preparation method of the special normal-temperature polycarboxylate-type water reducer, and belongs to the technical field of cement admixture materials. The water reducing agent is prepared from the following raw materials in parts by weight: 60 parts of ethylene glycol monovinyl polyethylene glycol ether, 5.6 to 8 parts of acrylic acid, 1.2 to 3.6 parts of functional monomer, 3 to 3.2 parts of oxidant, 1.5 to 1.6 parts of reducing agent and 1.8 to 2.1 parts of molecular weight regulator. By improving the formula, the water-reducing rate of the gypsum and the slurry fluidity are improved, the strength is improved due to the reduction of water consumption, and meanwhile, the problem of poor adaptability of an existing admixture to a gypsum system is solved. The polycarboxylate superplasticizer disclosed by the invention can fully react at normal temperature, is simple in operation equipment and production process, and has a wide application prospect.
本发明公开一种β型半水石膏专用常温聚羧酸系减水剂及其制备方法，属于水泥外加剂材料技术领域。本发明减水剂包括以下重量份的原料制备而成：乙二醇单乙烯基聚乙二醇醚60份、丙烯酸5.6‑8份、功能单体1.2‑3.6份、氧化剂3‑3.2份、还原剂1.5‑1.6份、分子量调节剂1.8‑2.1份。本发明通过改进配方，提高了石膏的减水率以及浆体流动度，用水量的减少导致强度提高，同时弥补了现有外加剂对石膏体系的适应性差的问题。本发明的聚羧酸减水剂在常温下就可以充分反应，操作设备和生产工艺简单，具有广阔的应用前景。
Special normal-temperature polycarboxylic acid type water reducing agent for beta-type semi-hydrated gypsum and preparation method of special normal-temperature polycarboxylic acid type water reducing agent
一种β型半水石膏专用常温聚羧酸系减水剂及其制备方法
LI HAIYAN (Autor:in) / WANG YUXIN (Autor:in) / LU JIANG (Autor:in) / ZHANG HUI (Autor:in) / ZHAO WEI (Autor:in) / QIN YOUMIN (Autor:in) / LI YAO (Autor:in) / WANG SHENGHUI (Autor:in) / ZHU DESHUAI (Autor:in) / ZHU JIANPING (Autor:in)
30.01.2024
Patent
Elektronische Ressource
Chinesisch
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