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 relates to the technical field of building material concrete additional additives, in particular to a high-adaptability polycarboxylate superplasticizer. Comprising the following raw materials in parts by weight: 50 to 70 parts of methacrylic acid polyethylene glycol monomethyl ether, 4 to 6 parts of methacrylic acid, 3 to 4.5 parts of a crosslinking auxiliary agent, 60 to 90 parts of deionized water, 0.15 to 0.2 part of an oxidizing agent, 0.07 to 0.15 part of a reducing agent and 0.3 to 0.7 part of a molecular weight regulator. The cross-linking aid is added during preparation of the polycarboxylic acid water reducing agent, so that polycarboxylic acid is slightly cross-linked, the space repulsive force of the water reducing agent is improved, the viscosity of cement paste can be effectively reduced, the water reducing agent has better mud resistance, the raw materials for preparing the water reducing agent are easy to obtain, the synthesis preparation method is safe, stable and controllable, and the use cost of the raw materials and the finished product is low.
本发明涉及建筑材料混凝土外加助剂技术领域，具体涉及一种高适应性聚羧酸减水剂，包括以下重量份原料：包括以下重量份原料：50‑70份甲基丙烯酸聚乙二醇单甲醚、4‑6份甲基丙烯酸、3‑4.5份交联助剂、60‑90份去离子水、0.15‑0.2份氧化剂、0.07‑0.15份还原剂、0.3‑0.7份分子量调节剂；本发明通过在聚羧酸减水剂制备中加入交联助剂，使聚羧酸轻度交联，提升了减水剂空间排斥力，能有效降低水泥浆体粘度，具备更好地抗泥性，且减水剂制备原料易得，合成制备方法安全、稳定可控，原料和成品使用成本低。
High-adaptability polycarboxylate superplasticizer and preparation method thereof
The invention relates to the technical field of building material concrete additional additives, in particular to a high-adaptability polycarboxylate superplasticizer. Comprising the following raw materials in parts by weight: 50 to 70 parts of methacrylic acid polyethylene glycol monomethyl ether, 4 to 6 parts of methacrylic acid, 3 to 4.5 parts of a crosslinking auxiliary agent, 60 to 90 parts of deionized water, 0.15 to 0.2 part of an oxidizing agent, 0.07 to 0.15 part of a reducing agent and 0.3 to 0.7 part of a molecular weight regulator. The cross-linking aid is added during preparation of the polycarboxylic acid water reducing agent, so that polycarboxylic acid is slightly cross-linked, the space repulsive force of the water reducing agent is improved, the viscosity of cement paste can be effectively reduced, the water reducing agent has better mud resistance, the raw materials for preparing the water reducing agent are easy to obtain, the synthesis preparation method is safe, stable and controllable, and the use cost of the raw materials and the finished product is low.
本发明涉及建筑材料混凝土外加助剂技术领域，具体涉及一种高适应性聚羧酸减水剂，包括以下重量份原料：包括以下重量份原料：50‑70份甲基丙烯酸聚乙二醇单甲醚、4‑6份甲基丙烯酸、3‑4.5份交联助剂、60‑90份去离子水、0.15‑0.2份氧化剂、0.07‑0.15份还原剂、0.3‑0.7份分子量调节剂；本发明通过在聚羧酸减水剂制备中加入交联助剂，使聚羧酸轻度交联，提升了减水剂空间排斥力，能有效降低水泥浆体粘度，具备更好地抗泥性，且减水剂制备原料易得，合成制备方法安全、稳定可控，原料和成品使用成本低。
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
ZHANG QIUPING (Autor:in) / YANG KAI (Autor:in) / YU JIANHUA (Autor:in) / XIAN FANGYAN (Autor:in) / WANG YING (Autor:in)
28.03.2023
Patent
Elektronische Ressource
Chinesisch
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