A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Modified powder polycarboxylate superplasticizer for gypsum self-leveling mortar and preparation method of modified powder polycarboxylate superplasticizer
The invention relates to the technical field of gypsum self-leveling mortar, in particular to a modified powder polycarboxylate superplasticizer for gypsum self-leveling mortar. The modified powder polycarboxylate superplasticizer comprises the following raw materials: polyoxyethylene ether, acrylic acid, maleic anhydride, 2-acrylamido-2-methylpropanesulfonic acid, a chain transfer agent, an oxidizing agent, a catalyst, a reducing agent, a PH regulator and a separant. The preparation method comprises the following steps: preparing a base material, carrying out primary titration, carrying out secondary titration, neutralizing and carrying out spray drying. The powdery polycarboxylate superplasticizer disclosed by the invention has excellent dispersing performance, fluidity maintaining capability and high temperature resistance in a gypsum self-leveling system.
本发明涉及石膏自流平砂浆技术领域，尤其是一种石膏自流平砂浆用改性粉体聚羧酸减水剂包括以下原料：聚氧乙烯醚、丙烯酸、马来酸酐、2‑丙烯酰胺基‑2‑甲基丙磺酸、链转移剂、氧化剂、催化剂、还原剂、PH调节剂和隔离剂；制备时，包括以下步骤：制备底料、一次滴定、二次滴定、中和和喷雾干燥。本发明的粉体聚羧酸减水剂在石膏自流平体系中具有优异的分散性能、流动度保持能力，以及耐高温性能。
Modified powder polycarboxylate superplasticizer for gypsum self-leveling mortar and preparation method of modified powder polycarboxylate superplasticizer
The invention relates to the technical field of gypsum self-leveling mortar, in particular to a modified powder polycarboxylate superplasticizer for gypsum self-leveling mortar. The modified powder polycarboxylate superplasticizer comprises the following raw materials: polyoxyethylene ether, acrylic acid, maleic anhydride, 2-acrylamido-2-methylpropanesulfonic acid, a chain transfer agent, an oxidizing agent, a catalyst, a reducing agent, a PH regulator and a separant. The preparation method comprises the following steps: preparing a base material, carrying out primary titration, carrying out secondary titration, neutralizing and carrying out spray drying. The powdery polycarboxylate superplasticizer disclosed by the invention has excellent dispersing performance, fluidity maintaining capability and high temperature resistance in a gypsum self-leveling system.
本发明涉及石膏自流平砂浆技术领域，尤其是一种石膏自流平砂浆用改性粉体聚羧酸减水剂包括以下原料：聚氧乙烯醚、丙烯酸、马来酸酐、2‑丙烯酰胺基‑2‑甲基丙磺酸、链转移剂、氧化剂、催化剂、还原剂、PH调节剂和隔离剂；制备时，包括以下步骤：制备底料、一次滴定、二次滴定、中和和喷雾干燥。本发明的粉体聚羧酸减水剂在石膏自流平体系中具有优异的分散性能、流动度保持能力，以及耐高温性能。
Modified powder polycarboxylate superplasticizer for gypsum self-leveling mortar and preparation method of modified powder polycarboxylate superplasticizer
一种石膏自流平砂浆用改性粉体聚羧酸减水剂及其制备方法
QIAN ZHONGQIU (author) / RUI AIJUN (author) / PU XIONGXIONG (author) / WANG DAOZHENG (author) / ZHANG CHAOHUI (author) / WU KAISHENG (author) / WANG WENJUN (author)
2023-04-04
Patent
Electronic Resource
Chinese
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