Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Polyether polycarboxylic acid water reducing agent and preparation method therefor
The present invention discloses a polyether polycarboxylic acid water reducing agent and a preparation method therefor. Macromonomers with relatively weak activity are used to replace part of macromonomers with better activities but with higher prices; unsaturated acid with lower cost is used to replace part of unsaturated acid with a higher price; a suitable redox initiation system is chosen; and by adjusting a proportion of an initiator, a molecular weight regulator, and a comonomer, polymerization is performed at the temperature of 25-30 DEG C, and a high performance polycarboxylic acid water reducing agent that is suitable for preparing low-grade concrete is prepared; and the method is low in material cost, simple in operation, and green and environmentally friendly; the water reducing performance of the water reducing agent can be equivalent to the performances of naphthalene-series and aliphatic water reducing agents, and the water reducing agent has an advantage of high cost performance.
Polyether polycarboxylic acid water reducing agent and preparation method therefor
The present invention discloses a polyether polycarboxylic acid water reducing agent and a preparation method therefor. Macromonomers with relatively weak activity are used to replace part of macromonomers with better activities but with higher prices; unsaturated acid with lower cost is used to replace part of unsaturated acid with a higher price; a suitable redox initiation system is chosen; and by adjusting a proportion of an initiator, a molecular weight regulator, and a comonomer, polymerization is performed at the temperature of 25-30 DEG C, and a high performance polycarboxylic acid water reducing agent that is suitable for preparing low-grade concrete is prepared; and the method is low in material cost, simple in operation, and green and environmentally friendly; the water reducing performance of the water reducing agent can be equivalent to the performances of naphthalene-series and aliphatic water reducing agents, and the water reducing agent has an advantage of high cost performance.
Polyether polycarboxylic acid water reducing agent and preparation method therefor
LI TING (Autor:in) / LI XIAONING (Autor:in) / SONG ZUOBAO (Autor:in) / WANG LING (Autor:in) / HAO LIGUO (Autor:in) / LI HUIQUN (Autor:in) / ZHU YUXUE (Autor:in) / WANG YUE (Autor:in) / ZHAO HAIYANG (Autor:in) / WU MINGHUI (Autor:in)
18.11.2015
Patent
Elektronische Ressource
Englisch
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