Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-adaptability polycarboxylic acid high-performance water reducing agent and preparation method thereof
The invention relates to the technical field of concrete admixtures, in particular to a high-adaptability polycarboxylic acid high-performance water reducing agent and a preparation method thereof, which can be used for visually and quickly detecting the pH value of a solution. The heating temperature can be conveniently controlled, by adding mercaptoacetic acid, the average molecular weight can be controlled and adjusted in the preparation process of the polyhydroxy acid high-performance water reducing agent, the water reducing agent is prepared from the following raw materials in parts by weight: 2.98-11.02 parts of methacrylic acid, 0.3-4 parts of ammonium persulfate, 0.1-1.2 parts of ferrous sulfate, 140 parts of soft water, 0.2-2 parts of a chain transfer agent, 0.3-1.5 parts of mercaptoacetic acid and 0.4-1 part of an acid-base indicator.
本发明涉及混凝土外加剂的技术领域，特别是涉及一种高适应性聚羧酸高性能减水剂及其制备方法,可直观快速的对溶液的PH值进行检测；可便于对加热温度进行控制；通过添加疏基乙酸，可在聚羟酸高性能减水剂制备过程中，对均分子量进行控制调节；由以下重量份数的原料制成：甲基丙烯酸2.98‑11.02份、过硫酸铵0.3‑4份、硫酸亚铁0.1‑1.2份、软水140份、链转移剂0.2‑2份、疏基乙酸0.3‑1.5份和酸碱指示剂0.4‑1份。
High-adaptability polycarboxylic acid high-performance water reducing agent and preparation method thereof
The invention relates to the technical field of concrete admixtures, in particular to a high-adaptability polycarboxylic acid high-performance water reducing agent and a preparation method thereof, which can be used for visually and quickly detecting the pH value of a solution. The heating temperature can be conveniently controlled, by adding mercaptoacetic acid, the average molecular weight can be controlled and adjusted in the preparation process of the polyhydroxy acid high-performance water reducing agent, the water reducing agent is prepared from the following raw materials in parts by weight: 2.98-11.02 parts of methacrylic acid, 0.3-4 parts of ammonium persulfate, 0.1-1.2 parts of ferrous sulfate, 140 parts of soft water, 0.2-2 parts of a chain transfer agent, 0.3-1.5 parts of mercaptoacetic acid and 0.4-1 part of an acid-base indicator.
本发明涉及混凝土外加剂的技术领域，特别是涉及一种高适应性聚羧酸高性能减水剂及其制备方法,可直观快速的对溶液的PH值进行检测；可便于对加热温度进行控制；通过添加疏基乙酸，可在聚羟酸高性能减水剂制备过程中，对均分子量进行控制调节；由以下重量份数的原料制成：甲基丙烯酸2.98‑11.02份、过硫酸铵0.3‑4份、硫酸亚铁0.1‑1.2份、软水140份、链转移剂0.2‑2份、疏基乙酸0.3‑1.5份和酸碱指示剂0.4‑1份。
High-adaptability polycarboxylic acid high-performance water reducing agent and preparation method thereof
一种高适应性聚羧酸高性能减水剂及其制备方法
ZHENG JINGHAI (Autor:in) / QIU HAN (Autor:in) / YAN RUIJIN (Autor:in) / ZHANG JIEJUN (Autor:in) / LI CHUAN (Autor:in)
04.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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