Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of polycarboxylic acid slump retaining mother liquor
The invention relates to the technical field of building materials, in particular to a preparation method of polycarboxylic acid slump-retaining mother liquor, and water, alcohol and hydroxybutyl acrylate form a homogeneous-phase or two-phase solution to react with a polyether monomer to prepare the polycarboxylic acid slump-retaining mother liquor. By adjusting the material ratio of water to alcohol, the water and alcohol can form a homogeneous solution or a two-phase mixed liquid with hydroxybutyl acrylate, hydroxybutyl acrylate in the water-alcohol liquid is attached to participate in the reaction, the hydroxybutyl acrylate which is not dissolved is gradually dissolved into the reaction system, and the concentration of hydroxybutyl acrylate in the whole reaction process is maintained at a fixed concentration. The free radical reaction rate in the production process is stable, the produced polycarboxylic acid slump retaining mother liquor is stable and controllable, and the slump retaining capacity is good.
本发明涉及建筑材料技术领域，特别涉及一种聚羧酸保坍母液的制备方法，通过水、醇和丙烯酸羟丁酯形成均相或二相溶液与聚醚单体反应制得所述聚羧酸保坍母液。通过调整水、醇物料比例，可以和丙烯酸羟丁酯形成均相溶液或二相混合液体，附着水‑醇液体中丙烯酸羟丁酯参与反应，末溶解的丙烯酸羟丁酯逐渐溶入到反应体系中，整个反应过程中的丙烯酸羟丁酯浓度维持在固定浓度，使生产过程中的自由基反应速率稳定，生产聚羧酸保坍母液稳定可控、具有较好的保坍能力。
Preparation method of polycarboxylic acid slump retaining mother liquor
The invention relates to the technical field of building materials, in particular to a preparation method of polycarboxylic acid slump-retaining mother liquor, and water, alcohol and hydroxybutyl acrylate form a homogeneous-phase or two-phase solution to react with a polyether monomer to prepare the polycarboxylic acid slump-retaining mother liquor. By adjusting the material ratio of water to alcohol, the water and alcohol can form a homogeneous solution or a two-phase mixed liquid with hydroxybutyl acrylate, hydroxybutyl acrylate in the water-alcohol liquid is attached to participate in the reaction, the hydroxybutyl acrylate which is not dissolved is gradually dissolved into the reaction system, and the concentration of hydroxybutyl acrylate in the whole reaction process is maintained at a fixed concentration. The free radical reaction rate in the production process is stable, the produced polycarboxylic acid slump retaining mother liquor is stable and controllable, and the slump retaining capacity is good.
本发明涉及建筑材料技术领域，特别涉及一种聚羧酸保坍母液的制备方法，通过水、醇和丙烯酸羟丁酯形成均相或二相溶液与聚醚单体反应制得所述聚羧酸保坍母液。通过调整水、醇物料比例，可以和丙烯酸羟丁酯形成均相溶液或二相混合液体，附着水‑醇液体中丙烯酸羟丁酯参与反应，末溶解的丙烯酸羟丁酯逐渐溶入到反应体系中，整个反应过程中的丙烯酸羟丁酯浓度维持在固定浓度，使生产过程中的自由基反应速率稳定，生产聚羧酸保坍母液稳定可控、具有较好的保坍能力。
Preparation method of polycarboxylic acid slump retaining mother liquor
一种聚羧酸保坍母液的制备方法
DU KELU (Autor:in) / QIN TINGTING (Autor:in) / LI XIANGHE (Autor:in) / GUAN MENGQIN (Autor:in) / YAO WENJIE (Autor:in)
02.04.2024
Patent
Elektronische Ressource
Chinesisch
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