Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Polycarboxylate superplasticizer with defoaming function and preparation method thereof
The invention relates to a polycarboxylic acid water reducer with a defoaming function and a preparation method thereof, the polycarboxylic acid water reducer comprises 10-60 mol% of methylallyl alcohol polyoxyethylene ether, 32-75 mol% of organic acid, 0.1-2 mol% of EO/PO alkynediol addition surfactant, 0.1-0.5 mol% of polymerization inhibitor, 0.1-0.7 mol% of oxidant and 0.03-0.15 mol% of reducing agent, the preparation method comprises the following steps: synthesizing a functional polymer, dissolving the functional polymer in water to prepare a stable aqueous solution, adding the aqueous solution into the aqueous solution, and uniformly stirring to prepare the polycarboxylic acid water reducer with the defoaming function. The obtained polymer aqueous solution is subjected to ternary polymerization with methylallyl alcohol polyoxyethylene ether and organic acid through a redox system, and when the polymer for the hydraulic system is applied to a cement-based or gypsum-based system, the gas content of the system can be remarkably reduced, the appearance can be obviously improved, the compressive strength and the breaking strength can be improved, and the durability can be improved.
一种自带消泡功能的聚羧酸减水剂以及制备方法，其特征在于，聚羧酸减水剂包括甲基烯丙醇聚氧乙烯醚10‑60mol％、有机酸32‑75mol％、EO/PO炔二醇加成表活0.1‑2mol％、阻聚剂0.1‑0.5mol％、氧化剂0.1‑0.7mol％、还原剂0.03‑0.15mol％，先合成功能性聚合物，并溶于水中制备稳定的水溶液，在将所得聚合物水溶液通过氧化还原体系与甲基烯丙醇聚氧乙烯醚和有机酸进行三元共聚，本发明提供的用于水硬性体系的聚合物，应用于水泥基或石膏基体系中能显著减低体系含气量明显改善外观，提高抗压抗折强度，提升耐久性。
Polycarboxylate superplasticizer with defoaming function and preparation method thereof
The invention relates to a polycarboxylic acid water reducer with a defoaming function and a preparation method thereof, the polycarboxylic acid water reducer comprises 10-60 mol% of methylallyl alcohol polyoxyethylene ether, 32-75 mol% of organic acid, 0.1-2 mol% of EO/PO alkynediol addition surfactant, 0.1-0.5 mol% of polymerization inhibitor, 0.1-0.7 mol% of oxidant and 0.03-0.15 mol% of reducing agent, the preparation method comprises the following steps: synthesizing a functional polymer, dissolving the functional polymer in water to prepare a stable aqueous solution, adding the aqueous solution into the aqueous solution, and uniformly stirring to prepare the polycarboxylic acid water reducer with the defoaming function. The obtained polymer aqueous solution is subjected to ternary polymerization with methylallyl alcohol polyoxyethylene ether and organic acid through a redox system, and when the polymer for the hydraulic system is applied to a cement-based or gypsum-based system, the gas content of the system can be remarkably reduced, the appearance can be obviously improved, the compressive strength and the breaking strength can be improved, and the durability can be improved.
一种自带消泡功能的聚羧酸减水剂以及制备方法，其特征在于，聚羧酸减水剂包括甲基烯丙醇聚氧乙烯醚10‑60mol％、有机酸32‑75mol％、EO/PO炔二醇加成表活0.1‑2mol％、阻聚剂0.1‑0.5mol％、氧化剂0.1‑0.7mol％、还原剂0.03‑0.15mol％，先合成功能性聚合物，并溶于水中制备稳定的水溶液，在将所得聚合物水溶液通过氧化还原体系与甲基烯丙醇聚氧乙烯醚和有机酸进行三元共聚，本发明提供的用于水硬性体系的聚合物，应用于水泥基或石膏基体系中能显著减低体系含气量明显改善外观，提高抗压抗折强度，提升耐久性。
Polycarboxylate superplasticizer with defoaming function and preparation method thereof
一种自带消泡功能的聚羧酸减水剂及其制备方法
FANG LI (Autor:in) / WANG ZHAOFENG (Autor:in) / ZHANG JIQIANG (Autor:in) / ZHANG XIAODONG (Autor:in) / FAN LINSONG (Autor:in) / LIU AIBING (Autor:in)
22.11.2024
Patent
Elektronische Ressource
Chinesisch
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