Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Polycarboxylic acid high-performance water reducing agent and preparation method thereof
The invention belongs to the technical field of polycarboxylic acid water reducing agent preparation, and discloses a polycarboxylic acid high-performance water reducing agent preparation method, which comprises: mixing a water body and a macromonomer, adding sodium methallyl sulfonate to form a main material, mixing the water body and acrylic acid, adding mercaptopropionic acid and vitamin C to generate a first additive material, and uniformly stirring to obtain a second additive material; a water body and ammonium sulfate are mixed, a main material, a first additive and a second additive are mixed and heated for a polymerization reaction, a molecular weight regulator is added, the molecular weight and distribution of materials in a reaction kettle are regulated, after the polymerization reaction is completed, a Tinaka sodium hydroxide solution is subjected to a neutralization reaction, and the polycarboxylate superplasticizer is obtained. By adding the molecular weight regulator, the molecular weight and the distribution of the materials in the reaction kettle are regulated, so that the dispersity, the water-retaining property and the flowability of the polycarboxylate superplasticizer are improved, and the dispersion effect and the water-retaining property of the concrete are improved.
本发明属于聚羧酸减水剂制备技术领域，且公开了一种聚羧酸高性能减水剂制备方法，包括以下步骤：将水体和大单体混合，并添加甲基丙烯磺酸钠形成主料，另外将水体与丙烯酸混合，并添加疏基丙酸、维生素C生成第一添加料，通过水体与硫酸铵混合，将主料、第一添加料和第二添加料混合并加热进行聚合反应，并添加分子量调节剂，调节反应釜内部物料的分子量及其分布，聚合反应完成后，提那家氢氧化钠溶液进行中和反应，得到聚羧酸减水剂，通过添加分子量调节剂，调节反应釜内部物料的分子量及其分布，进而增加了聚羧酸减水剂的分散性、保水性和流动性，从而增加混凝土的分散效果和保水性。
Polycarboxylic acid high-performance water reducing agent and preparation method thereof
The invention belongs to the technical field of polycarboxylic acid water reducing agent preparation, and discloses a polycarboxylic acid high-performance water reducing agent preparation method, which comprises: mixing a water body and a macromonomer, adding sodium methallyl sulfonate to form a main material, mixing the water body and acrylic acid, adding mercaptopropionic acid and vitamin C to generate a first additive material, and uniformly stirring to obtain a second additive material; a water body and ammonium sulfate are mixed, a main material, a first additive and a second additive are mixed and heated for a polymerization reaction, a molecular weight regulator is added, the molecular weight and distribution of materials in a reaction kettle are regulated, after the polymerization reaction is completed, a Tinaka sodium hydroxide solution is subjected to a neutralization reaction, and the polycarboxylate superplasticizer is obtained. By adding the molecular weight regulator, the molecular weight and the distribution of the materials in the reaction kettle are regulated, so that the dispersity, the water-retaining property and the flowability of the polycarboxylate superplasticizer are improved, and the dispersion effect and the water-retaining property of the concrete are improved.
本发明属于聚羧酸减水剂制备技术领域，且公开了一种聚羧酸高性能减水剂制备方法，包括以下步骤：将水体和大单体混合，并添加甲基丙烯磺酸钠形成主料，另外将水体与丙烯酸混合，并添加疏基丙酸、维生素C生成第一添加料，通过水体与硫酸铵混合，将主料、第一添加料和第二添加料混合并加热进行聚合反应，并添加分子量调节剂，调节反应釜内部物料的分子量及其分布，聚合反应完成后，提那家氢氧化钠溶液进行中和反应，得到聚羧酸减水剂，通过添加分子量调节剂，调节反应釜内部物料的分子量及其分布，进而增加了聚羧酸减水剂的分散性、保水性和流动性，从而增加混凝土的分散效果和保水性。
Polycarboxylic acid high-performance water reducing agent and preparation method thereof
一种聚羧酸高性能减水剂及其制备方法
ZHU JINJIAN (Autor:in) / WU ZHULIANG (Autor:in) / LIN CONG (Autor:in) / LEE KEY NAM (Autor:in) / CHE JIAN (Autor:in) / ZHANG ZHILIANG (Autor:in) / REN SHAOFENG (Autor:in)
02.02.2024
Patent
Elektronische Ressource
Chinesisch
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