Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
聚羧酸减水剂及其复配的抗泥牺牲剂
本发明公开了一种聚羧酸减水剂及其复配的抗泥牺牲剂。本发明涉及一种用于聚羧酸减水剂成品复配的有机物，具体涉及一种具有一定聚环氧乙烷（PEO）链长的高分子物质，技术要点在于选用聚乙二醇、环状一元醇、催化剂在一定工艺条件下反应制得。本发明的牺牲剂能够优先吸附在粘土矿物上并且会产生位阻效应，进而减少粘土对聚羧酸减水剂的吸附量，从而显著提高聚羧酸减水剂的抗泥性能。
The invention discloses a polycarboxylic acid water reducing agent and a mud-resistant sacrificial agent compounded by the polycarboxylic acid water reducing agent. The invention relates to an organic matter for compounding a polycarboxylic acid water reducer finished product, in particular to a macromolecular substance with a certain polyethylene oxide (PEO) chain length, which is technically characterized in that the macromolecular substance is prepared by reacting polyethylene glycol, cyclic monohydric alcohol and a catalyst under certain process conditions. The sacrificial agent disclosed by the invention can be preferentially adsorbed on clay minerals and can generate a steric effect, so that the adsorption quantity of clay on the polycarboxylate superplasticizer is reduced, and the mud resistance of the polycarboxylate superplasticizer is remarkably improved.
聚羧酸减水剂及其复配的抗泥牺牲剂
本发明公开了一种聚羧酸减水剂及其复配的抗泥牺牲剂。本发明涉及一种用于聚羧酸减水剂成品复配的有机物，具体涉及一种具有一定聚环氧乙烷（PEO）链长的高分子物质，技术要点在于选用聚乙二醇、环状一元醇、催化剂在一定工艺条件下反应制得。本发明的牺牲剂能够优先吸附在粘土矿物上并且会产生位阻效应，进而减少粘土对聚羧酸减水剂的吸附量，从而显著提高聚羧酸减水剂的抗泥性能。
The invention discloses a polycarboxylic acid water reducing agent and a mud-resistant sacrificial agent compounded by the polycarboxylic acid water reducing agent. The invention relates to an organic matter for compounding a polycarboxylic acid water reducer finished product, in particular to a macromolecular substance with a certain polyethylene oxide (PEO) chain length, which is technically characterized in that the macromolecular substance is prepared by reacting polyethylene glycol, cyclic monohydric alcohol and a catalyst under certain process conditions. The sacrificial agent disclosed by the invention can be preferentially adsorbed on clay minerals and can generate a steric effect, so that the adsorption quantity of clay on the polycarboxylate superplasticizer is reduced, and the mud resistance of the polycarboxylate superplasticizer is remarkably improved.
聚羧酸减水剂及其复配的抗泥牺牲剂
14.03.2025
Patent
Elektronische Ressource
Chinesisch