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A platform for research: civil engineering, architecture and urbanism
Phosphate anti-mud slump-retaining water reducing agent
The invention discloses a phosphate anti-mud slump-retaining water reducing agent which is prepared by the following steps: firstly, synthesizing a starch branched-chain anti-mud monomer with phosphate at the tail end through esterification reaction, and then carrying out double-bond addition on the starch branched-chain anti-mud monomer, a polyether macromonomer, acrylic acid, acrylate and the like to obtain the phosphate anti-mud slump-retaining water reducing agent. The slump loss of concrete can be well delayed, the pumping time and the operation time are prolonged, the synthesis process is simple and convenient, and industrialization is easy.
本发明公开了一种磷酸酯类抗泥保坍减水剂，首先通过酯化反应合成一种末端为磷酸酯的淀粉支链抗泥单体，然后将该淀粉支链抗泥单体与聚醚大单体、丙烯酸和丙烯酸酯等双键加成而得到。本发明能够很好地延缓混凝土的坍落损失，延长泵送时间和操作时间，合成工艺简便，易工业化。
Phosphate anti-mud slump-retaining water reducing agent
The invention discloses a phosphate anti-mud slump-retaining water reducing agent which is prepared by the following steps: firstly, synthesizing a starch branched-chain anti-mud monomer with phosphate at the tail end through esterification reaction, and then carrying out double-bond addition on the starch branched-chain anti-mud monomer, a polyether macromonomer, acrylic acid, acrylate and the like to obtain the phosphate anti-mud slump-retaining water reducing agent. The slump loss of concrete can be well delayed, the pumping time and the operation time are prolonged, the synthesis process is simple and convenient, and industrialization is easy.
本发明公开了一种磷酸酯类抗泥保坍减水剂，首先通过酯化反应合成一种末端为磷酸酯的淀粉支链抗泥单体，然后将该淀粉支链抗泥单体与聚醚大单体、丙烯酸和丙烯酸酯等双键加成而得到。本发明能够很好地延缓混凝土的坍落损失，延长泵送时间和操作时间，合成工艺简便，易工业化。
Phosphate anti-mud slump-retaining water reducing agent
一种磷酸酯类抗泥保坍减水剂
GUO PENGFEI (author) / HUANG YONGYI (author) / YU YANHUA (author)
2022-11-01
Patent
Electronic Resource
Chinese
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