A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anti-segregation agent for polycarboxylate superplasticizer and preparation method of anti-segregation agent
The invention provides an anti-segregation agent for a polycarboxylate superplasticizer and a preparation method of the anti-segregation agent, and relates to the technical field of concrete admixtures. The anti-segregation agent for the polycarboxylate superplasticizer comprises a water-soluble anionic surfactant monomer, an unsaturated monomer, a silane coupling agent, a crosslinking water-soluble acrylate monomer, a chain transfer agent, a reducing agent, an initiator and water, the water-soluble anionic surfactant monomer is sodium ethoxyalkyl sulfate, ammonium ethoxyalkyl sulfate or 2-acrylamide-2-methylpropanesulfonic acid, the unsaturated monomer is one or any two of acrylic acid, acrylamide or sodium allylsulfonate, and the silane coupling agent is one or any two of KH550, KH560 or KH570. The raw materials are easy to obtain, the preparation is simple, the technological process is green and environment-friendly, and the segregation phenomenon of the concrete can be effectively improved.
本发明提供一种聚羧酸减水剂用抗离析剂及其制备方法，涉及混凝土外加剂技术领域。该聚羧酸减水剂用抗离析剂，包括水溶性阴离子表面活性剂单体、不饱和单体、硅烷偶联剂、交联性水溶性丙烯酸酯类单体、链转移剂、还原剂、引发剂和水，所述水溶性阴离子表面活性剂单体为乙氧基烷基硫酸钠、乙氧基烷基硫酸铵或2‑丙烯酰胺‑2‑甲基丙磺酸，所述不饱和单体为丙烯酸、丙烯酰胺或丙烯基磺酸钠中的一种或任意两种，所述硅烷偶联剂为KH550、KH560或KH570中的一种或任意两种。本发明，原材料容易获取，制作简单，工艺流程绿色环保，能有效改善混凝土的离析现象。
Anti-segregation agent for polycarboxylate superplasticizer and preparation method of anti-segregation agent
The invention provides an anti-segregation agent for a polycarboxylate superplasticizer and a preparation method of the anti-segregation agent, and relates to the technical field of concrete admixtures. The anti-segregation agent for the polycarboxylate superplasticizer comprises a water-soluble anionic surfactant monomer, an unsaturated monomer, a silane coupling agent, a crosslinking water-soluble acrylate monomer, a chain transfer agent, a reducing agent, an initiator and water, the water-soluble anionic surfactant monomer is sodium ethoxyalkyl sulfate, ammonium ethoxyalkyl sulfate or 2-acrylamide-2-methylpropanesulfonic acid, the unsaturated monomer is one or any two of acrylic acid, acrylamide or sodium allylsulfonate, and the silane coupling agent is one or any two of KH550, KH560 or KH570. The raw materials are easy to obtain, the preparation is simple, the technological process is green and environment-friendly, and the segregation phenomenon of the concrete can be effectively improved.
本发明提供一种聚羧酸减水剂用抗离析剂及其制备方法，涉及混凝土外加剂技术领域。该聚羧酸减水剂用抗离析剂，包括水溶性阴离子表面活性剂单体、不饱和单体、硅烷偶联剂、交联性水溶性丙烯酸酯类单体、链转移剂、还原剂、引发剂和水，所述水溶性阴离子表面活性剂单体为乙氧基烷基硫酸钠、乙氧基烷基硫酸铵或2‑丙烯酰胺‑2‑甲基丙磺酸，所述不饱和单体为丙烯酸、丙烯酰胺或丙烯基磺酸钠中的一种或任意两种，所述硅烷偶联剂为KH550、KH560或KH570中的一种或任意两种。本发明，原材料容易获取，制作简单，工艺流程绿色环保，能有效改善混凝土的离析现象。
Anti-segregation agent for polycarboxylate superplasticizer and preparation method of anti-segregation agent
一种聚羧酸减水剂用抗离析剂及其制备方法
NI RONGFENG (author) / JIN SHENGLIN (author) / CHEN YIFEI (author) / LIU QIMING (author) / YANG ZHONGJUN (author) / LUO NAIJIANG (author) / LIU JIAXIANG (author) / SHEN WEIGUO (author) / LI BEIXING (author)
2023-06-23
Patent
Electronic Resource
Chinese
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