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Polycarboxylate superplasticizer and compound anti-mud sacrificial agent thereof
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.
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。
Polycarboxylate superplasticizer and compound anti-mud sacrificial agent thereof
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.
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。
Polycarboxylate superplasticizer and compound anti-mud sacrificial agent thereof
聚羧酸减水剂及其复配的抗泥牺牲剂
SONG YUANMING (author) / CAO HAOTIAN (author) / WANG ZHIJUAN (author)
2023-03-28
Patent
Electronic Resource
Chinese
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