Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Viscosity-regulating polycarboxylic acid water reducing agent and preparation method thereof
The invention relates to the field of concrete admixtures, in particular to a viscosity-regulating polycarboxylate superplasticizer and a preparation method thereof. The viscosity-regulating polycarboxylic acid water reducing agent comprises an unsaturated polyether monomer, unsaturated carboxylic acid, unsaturated amide, a viscosity regulating agent and a functional compound. Wherein the functional compound comprises at least one of unsaturated carboxylic acid/anhydride and unsaturated sulfonate; the viscosity regulating agent is prepared from an alcohol amine compound, an unsaturated ester monomer and an unsaturated phosphoric acid monomer. The polycarboxylate superplasticizer prepared by the invention has the advantages of low mixing amount, high water-reducing rate, good workability, capability of remarkably reducing the viscosity of concrete slurry, wide application range of silt content of sand-gravel materials and the like, and has very high practical value and popularization value.
本发明涉及混凝土外加剂领域，特别涉及一种粘度调控聚羧酸减水剂及其制备方法。其中，一种粘度调控聚羧酸减水剂包括不饱和聚醚单体、不饱和羧酸、不饱和酰胺、粘度调控剂及功能化合物。其中，所述功能化合物包括不饱和羧酸/酸酐及不饱和磺酸盐中的至少一种；所述粘度调控剂由醇胺类化合物、不饱和酯类单体及不饱和磷酸类单体制备而得。本发明制得的聚羧酸减水剂具有掺量低、减水率高、和易性好，能够显著降低混凝土浆体粘度、砂石料含泥量适应范围广等优点，具备很强的实用价值与推广价值。
Viscosity-regulating polycarboxylic acid water reducing agent and preparation method thereof
The invention relates to the field of concrete admixtures, in particular to a viscosity-regulating polycarboxylate superplasticizer and a preparation method thereof. The viscosity-regulating polycarboxylic acid water reducing agent comprises an unsaturated polyether monomer, unsaturated carboxylic acid, unsaturated amide, a viscosity regulating agent and a functional compound. Wherein the functional compound comprises at least one of unsaturated carboxylic acid/anhydride and unsaturated sulfonate; the viscosity regulating agent is prepared from an alcohol amine compound, an unsaturated ester monomer and an unsaturated phosphoric acid monomer. The polycarboxylate superplasticizer prepared by the invention has the advantages of low mixing amount, high water-reducing rate, good workability, capability of remarkably reducing the viscosity of concrete slurry, wide application range of silt content of sand-gravel materials and the like, and has very high practical value and popularization value.
本发明涉及混凝土外加剂领域，特别涉及一种粘度调控聚羧酸减水剂及其制备方法。其中，一种粘度调控聚羧酸减水剂包括不饱和聚醚单体、不饱和羧酸、不饱和酰胺、粘度调控剂及功能化合物。其中，所述功能化合物包括不饱和羧酸/酸酐及不饱和磺酸盐中的至少一种；所述粘度调控剂由醇胺类化合物、不饱和酯类单体及不饱和磷酸类单体制备而得。本发明制得的聚羧酸减水剂具有掺量低、减水率高、和易性好，能够显著降低混凝土浆体粘度、砂石料含泥量适应范围广等优点，具备很强的实用价值与推广价值。
Viscosity-regulating polycarboxylic acid water reducing agent and preparation method thereof
一种粘度调控聚羧酸减水剂及其制备方法
WANG ZHAOPENG (Autor:in) / ZHONG LINA (Autor:in) / FANG YUNHUI (Autor:in) / LIN ZEYU (Autor:in) / PAN ZHIFENG (Autor:in) / QIU YUETAO (Autor:in) / ZHAO HUI (Autor:in)
11.03.2022
Patent
Elektronische Ressource
Chinesisch
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