Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Simple preparation method of modified melamine water reducing agent
The invention discloses a simple preparation method of a modified melamine water reducing agent, and mainly relates to the field of water reducing agents. The method comprises the following steps: adding a proper amount of water into sealing equipment, adding a certain amount of sodium sulfanilate, melamine and formaldehyde under the driving of a circulating pump, respectively adjusting the pH value of the system by using sodium hydroxide and sulfuric acid at different stages according to reaction conditions required by the process, and carrying out constant-temperature circular reaction. Thepreparation method has the beneficial effects that the preparation process is low in energy consumption, safe and simple in process, the performance of the melamine water reducing agent is better, andvarious problems in the prior art are solved.
本发明公开了一种改性三聚氰胺减水剂的简易制备方法，主要涉及减水剂领域。包括密封设备中加入适量的水，在循环泵的驱动下，投入定量的对氨基苯磺酸钠、三聚氰胺和甲醛，按工艺要求的反应条件在不同阶段分别用氢氧化钠和硫酸调整体系的PH值，恒温循环反应即可。本发明的有益效果在于：它制备过程能耗低、安全、工艺简单，使三聚氰胺减水剂性能更佳，改进了现有技术中的各种问题。
Simple preparation method of modified melamine water reducing agent
The invention discloses a simple preparation method of a modified melamine water reducing agent, and mainly relates to the field of water reducing agents. The method comprises the following steps: adding a proper amount of water into sealing equipment, adding a certain amount of sodium sulfanilate, melamine and formaldehyde under the driving of a circulating pump, respectively adjusting the pH value of the system by using sodium hydroxide and sulfuric acid at different stages according to reaction conditions required by the process, and carrying out constant-temperature circular reaction. Thepreparation method has the beneficial effects that the preparation process is low in energy consumption, safe and simple in process, the performance of the melamine water reducing agent is better, andvarious problems in the prior art are solved.
本发明公开了一种改性三聚氰胺减水剂的简易制备方法，主要涉及减水剂领域。包括密封设备中加入适量的水，在循环泵的驱动下，投入定量的对氨基苯磺酸钠、三聚氰胺和甲醛，按工艺要求的反应条件在不同阶段分别用氢氧化钠和硫酸调整体系的PH值，恒温循环反应即可。本发明的有益效果在于：它制备过程能耗低、安全、工艺简单，使三聚氰胺减水剂性能更佳，改进了现有技术中的各种问题。
Simple preparation method of modified melamine water reducing agent
一种改性三聚氰胺减水剂的简易制备方法
LI QIANG (Autor:in) / SUN LEMING (Autor:in) / DONG JIAN (Autor:in) / LIU QIUMING (Autor:in) / YU TIAN (Autor:in) / SHI QUANXIN (Autor:in) / GONG CHUNMEI (Autor:in) / WANG SHANSHAN (Autor:in)
04.08.2020
Patent
Elektronische Ressource
Chinesisch
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