Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-adaptability polycarboxylate superplasticizer and preparation method thereof
The invention discloses a high-adaptability polycarboxylate superplasticizer and a preparation method thereof. The high-adaptability polycarboxylate superplasticizer is obtained by carrying out an amide/imidization reaction on a compound A and a compound B to obtain an intermediate C, and carrying out a copolymerization reaction on the intermediate C, a monomer D, a monomer E and a monomer F, the compound A is amino polyether, the compound B is sulfydryl-containing carboxylic acid, the monomer D is unsaturated carboxylic acid, the monomer E is a styrene small monomer, and the monomer F is a polymerizable phosphonic acid group monomer. The high-adaptability polycarboxylate superplasticizer product prepared by the invention has the advantages of low mixing amount, high water-reducing rate, small slump loss, wide cement adaptability, wide application range of silt content of sand and gravel materials and the like. The method provided by the invention has the advantages of easily available raw materials, simple production process, high yield, low production cost and small environmental pollution.
本发明公开了一种高适应性聚羧酸减水剂及其制备方法。本发明所述高适应性聚羧酸减水剂由通过化合物A与化合物B发生酰胺/酰亚胺化反应得到的中间体C，中间体C再与单体D、单体E、单体F共聚反应得到；所述化合物A为氨基聚醚，所述化合物B为含巯基的羧酸，所述单体D为不饱和羧酸，所述单体E为苯乙烯类小单体，所述单体F为可聚合膦酸基单体。本发明制备的高适应性聚羧酸减水剂产品具有掺量低、减水率高、坍落度损失小、水泥适应性广、砂石料含泥量适应范围广等优点。采用本发明的方法具有原料来源易得、生产工艺简单且收率高、生产成本低、环境污染小的优点。
High-adaptability polycarboxylate superplasticizer and preparation method thereof
The invention discloses a high-adaptability polycarboxylate superplasticizer and a preparation method thereof. The high-adaptability polycarboxylate superplasticizer is obtained by carrying out an amide/imidization reaction on a compound A and a compound B to obtain an intermediate C, and carrying out a copolymerization reaction on the intermediate C, a monomer D, a monomer E and a monomer F, the compound A is amino polyether, the compound B is sulfydryl-containing carboxylic acid, the monomer D is unsaturated carboxylic acid, the monomer E is a styrene small monomer, and the monomer F is a polymerizable phosphonic acid group monomer. The high-adaptability polycarboxylate superplasticizer product prepared by the invention has the advantages of low mixing amount, high water-reducing rate, small slump loss, wide cement adaptability, wide application range of silt content of sand and gravel materials and the like. The method provided by the invention has the advantages of easily available raw materials, simple production process, high yield, low production cost and small environmental pollution.
本发明公开了一种高适应性聚羧酸减水剂及其制备方法。本发明所述高适应性聚羧酸减水剂由通过化合物A与化合物B发生酰胺/酰亚胺化反应得到的中间体C，中间体C再与单体D、单体E、单体F共聚反应得到；所述化合物A为氨基聚醚，所述化合物B为含巯基的羧酸，所述单体D为不饱和羧酸，所述单体E为苯乙烯类小单体，所述单体F为可聚合膦酸基单体。本发明制备的高适应性聚羧酸减水剂产品具有掺量低、减水率高、坍落度损失小、水泥适应性广、砂石料含泥量适应范围广等优点。采用本发明的方法具有原料来源易得、生产工艺简单且收率高、生产成本低、环境污染小的优点。
High-adaptability polycarboxylate superplasticizer and preparation method thereof
一种高适应性聚羧酸减水剂及其制备方法
WANG XIUMEI (Autor:in) / SHU XIN (Autor:in) / RAN QIANPING (Autor:in) / ZHANG QIANQIAN (Autor:in) / ZHAO HONGXIA (Autor:in) / WANG TAO (Autor:in) / YU YINHUI (Autor:in)
20.06.2023
Patent
Elektronische Ressource
Chinesisch
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